Auxiliary assembly jig

Abstract

The utility model provides an auxiliary assembly jig used for auxiliary assembly of a positive tolerance button and a negative tolerance accessory, the button comprises a base and an elastic column which are stacked, the accessory is provided with a mounting hole, the auxiliary assembly jig comprises a limiting block and a knocking pin, the limiting block is provided with an alignment hole, the limiting block is used for abutting against one end face of the accessory, and the knocking pin is arranged in the alignment hole. The knocking pin comprises a first part and a second part which are stacked, the first part is provided with a convex curved surface, the convex curved surface is bent away from the second part, the convex curved surface is used for applying force to the end face, away from the elastic column, of the base relative to the elastic column, so that the elastic column is inserted into the mounting hole, and the second part and the first part are coaxially arranged; the convex curved surface is adjacent to the circumferential surface of the second part. According to the auxiliary assembling jig, the knocking force can be concentrated, so that the assembling simplicity is improved, and the adaptability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary jigs for clamping and assembling, and in particular to an auxiliary assembly jig. Background Art

[0002] A button with a positive tolerance is difficult to fit into an assembly hole with a negative tolerance using conventional assembly methods, so an auxiliary assembly jig needs to be developed to reduce the difficulty of assembly. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an auxiliary assembly jig that is conducive to concentrating the striking force, thereby improving the ease of assembly. In addition, the auxiliary assembly jig is also conducive to improving adaptability.

[0004] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0005] An auxiliary assembly jig is used to assist in assembling a button with a positive tolerance and an accessory with a negative tolerance, wherein the button comprises a stacked base and an elastic column, and the accessory is provided with a mounting hole. The auxiliary assembly jig comprises:

[0006] A limit block, wherein the limit block is provided with an alignment hole, and the limit block is used to abut against one end surface of the accessory so that the alignment hole is aligned with the mounting hole of the accessory; and

[0007] A knock pin comprises a first part and a second part stacked together, wherein the first part has a convex surface, the convex surface is bent away from the second part, the convex surface is used to apply force to the end surface of the base away from the elastic column relative to the elastic column, so that the elastic column is inserted into the mounting hole, the second part is coaxially arranged with the first part, and the convex surface is arranged adjacent to the circumferential surface of the second part.

[0008] In some possible implementations, the convex surface is a spherical surface.

[0009] In some possible implementations, a projection circumference of the convex surface on the second portion is smaller than a diameter of the alignment hole.

[0010] In some possible implementations, when viewed along the stacking direction of the first portion and the second portion, a maximum height of the first portion is smaller than a height of the second portion.

[0011] In some possible implementations, a height of the second portion is at least greater than twice a maximum height of the first portion.

[0012] In some possible implementations, the second portion is a cylinder.

[0013] In some possible implementations, the alignment hole is a blind hole.

[0014] In some possible implementations, the depth of the alignment hole is less than or equal to one third of the thickness of the limiting block.

[0015] In some possible implementations, a vertical cross-section of the alignment hole is square.

[0016] In some possible implementations, the number of the alignment holes is at least two, at least two of the alignment holes are exposed on the same side of the limiting block and are spaced apart from each other, and the number of the knocking pins is the same as the number of the alignment holes.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] In the present application, the convex surface of the knock pin is conducive to concentrating the knocking force, so that the striking force generated by swinging the knock pin can be concentrated on the button, so that the elastic column can quickly deform to pass through the mounting hole of the accessory, and then complete the assembly of positive and negative tolerances, which is conducive to improving the ease of assembly. In addition, the limit block can prevent the accessory from shifting, and the alignment hole provided in the limit block can leave a space for the elastic column to avoid, so that the auxiliary assembly jig can be adapted to assemble buttons of different lengths, which is conducive to improving the adaptability of the auxiliary assembly jig.

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A diagram showing the use status of an auxiliary assembly jig provided in one embodiment of the present application.

[0021] Figure 2 for Figure 1 Schematic diagram of the structure of the knock pin shown.

[0022] Description of Figure Numbers:

[0023] 100 - auxiliary assembly jig; 10 - limit block; 11 - alignment hole; 20 - knock pin; 21 - first part; 22 - second part; 210 - convex surface; 30 - button; 31 - base; 32 - elastic column; 40 - accessories; 41 - installation hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a centered element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a centered element. When an element is referred to as "arranged on" another element, it can be arranged on the other element or there can be a centered element.

[0026] Reference Figure 1 and Figure 2 In one embodiment of the present application, there is provided an auxiliary assembly jig 100, which is used to assist in assembling a button 30 with a positive tolerance and an accessory 40 with a negative tolerance. The button 30 includes a stacked base 31 and an elastic column 32. Exemplarily, the material of the elastic column 32 may be rubber. The accessory 40 is provided with a mounting hole 41, and the elastic column 32 is inserted into the mounting hole 41 during assembly. The so-called positive tolerance and negative tolerance refer to the diameter of the elastic column 32 being smaller than the aperture of the mounting hole 41. The auxiliary assembly jig 100 includes a limit block 10 and a knock pin 20. The limit block 10 is provided with an alignment hole 11, and the limit block 10 is used to abut against one end face of the accessory 40 so that the alignment hole 11 is arranged to be aligned with the mounting hole 41 of the accessory 40. The limit block 10 can prevent the accessory 40 from moving relative to each other. The knock pin 20 includes a first portion 21 and a second portion 22 which are stacked. The first portion 21 has a convex surface 210, which is bent away from the second portion 22. The convex surface 210 is used to apply force to the end surface of the base 31 away from the elastic column 32 relative to the elastic column 32, so that the elastic column 32 is inserted into the mounting hole 41. For example, the knock pin 20 can be swung toward or away from the limit block 10 by an external force, so that the convex surface 210 knocks the button 30, and the elastic column 32 can be deformed by the knocking force of the convex surface 210, so that the elastic column 32 can be stuck in the mounting hole 41 with a smaller aperture. The alignment hole 11 is used to accommodate the elastic column 32 passing through the mounting hole 41. The second portion 22 is coaxially arranged with the first portion 21, and the convex surface 210 is arranged adjacent to the circumferential surface of the second portion 22.

[0027] In the present application, the convex surface 210 of the knock pin 20 is conducive to concentrating the knocking force, so that the striking force generated by swinging the knock pin 20 can be concentrated on the button 30, so that the elastic column 32 can quickly deform to pass through the mounting hole 41 of the accessory 40, and then complete the assembly of positive and negative tolerances, which is conducive to improving the ease of assembly. In addition, the limit block 10 can prevent the accessory 40 from shifting, and the alignment hole 11 provided in the limit block 10 can leave a space for the elastic column 32 to avoid, so that the auxiliary assembly jig 100 can adapt to assemble buttons 30 of different lengths, which is conducive to improving the adaptability of the auxiliary assembly jig 100.

[0028] In some embodiments, the convex surface 210 is a spherical surface, which helps to increase the contact area, thereby preventing the pressure applied to the button 30 from being too great to damage the surface of the button 30, thereby helping to reduce the user's control accuracy. Therefore, the shape of the convex surface 210 helps to ensure the assembly yield while improving the convenience of operation.

[0029] In other embodiments, the convex surface 210 may be an ellipsoidal surface or other asymmetrically arranged surfaces.

[0030] In some embodiments, the projected circumference of the convex surface 210 on the second portion 22 is smaller than the aperture of the alignment hole 11 . The above ratio setting is conducive to further taking into account the force concentration effect and adaptability, thereby helping to improve the use efficiency of the auxiliary assembly fixture 100 .

[0031] In some embodiments, when observed along the stacking direction of the first portion 21 and the second portion 22, the maximum height H1 of the first portion 21 is less than the height H2 of the second portion 22. The larger the height H1 is, the larger the proportion of the non-concentrated stress portion of the first portion 21 will be when the curvature of the convex surface 210 remains unchanged, which will cause the size of the knock pin 20 to be larger, easily increasing the weight of the knock pin 20 and making it inconvenient to hold. Therefore, the above-mentioned height setting is beneficial to improving the use efficiency of the knock pin 20 while also improving the ease of use.

[0032] In some embodiments, the height H2 of the second portion 22 is at least twice the maximum height of the first portion 21 , thereby facilitating adjustment of the size of the knock pin while ensuring a suitable gripping length.

[0033] In some embodiments, the second portion 22 is cylindrical, thereby facilitating improved holding convenience.

[0034] In another embodiment, the second portion 22 may be a truncated cone.

[0035] In some embodiments, the alignment hole 11 is a blind hole, that is, the alignment hole 11 only passes through one end surface of the limiting block 10 , thereby facilitating the strength of the limiting block 10 and thereby facilitating the improvement of the service life of the limiting block 10 .

[0036] In some embodiments, the depth of the alignment hole 11 is less than or equal to one third of the thickness of the limit block 10 , thereby further ensuring the strength of the limit block 10 . In this embodiment, the depth of the alignment hole 11 is one quarter of the thickness of the limit block 10 .

[0037] In another embodiment, the alignment hole 11 may be a through hole, which facilitates the alignment of the alignment hole 11 and the mounting hole 41 , thereby facilitating the alignment of the auxiliary assembly jig 100 .

[0038] In some embodiments, the number of alignment holes 11 is at least two (two alignment holes 11 are shown in the figure), at least two alignment holes 11 are exposed on the same side of the limit block 10 and are spaced apart from each other, and the number of knock pins 20 is the same as the number of alignment holes 11, so as to facilitate the auxiliary assembly jig 100 to assemble multiple elastic columns 32 and multiple mounting holes 41 at the same time. Exemplarily, at least two knock pins 20 can be independently provided or connected to each other.

[0039] Exemplarily, at least one of the limit block 10 and the knock pin 20 can be a plastic part or a metal part. When the knock pin 20 is a plastic part, the hardness difference between the knock pin 20 and the button 30 can be reduced, thereby reducing the possibility of surface damage to the button 30 when the knock pin 20 knocks.

[0040] In some embodiments, the vertical section of the alignment hole 11 is square. For example, the alignment hole 11 can be a square hole or a cylindrical hole. Since the alignment hole 11 is mainly used to accommodate the elastic column 32 passing through, the alignment hole 11 of the above shape has a relatively large volume, so that the alignment hole 11 can accommodate elastic columns 32 of different shapes, thereby facilitating the adaptability of the limit block 10. In addition, the hole with a square vertical section is easy to shape, which is also convenient for the limit block 10 to make a hole.

[0041] The auxiliary assembly fixture 100 provided in the present application can be used for assembling accessories 40 including a circuit board and a button 30 .

[0042] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An auxiliary assembly jig for assisting the assembly of a button with a positive tolerance and an accessory with a negative tolerance, wherein the button comprises a stacked base and an elastic column, and the accessory is provided with a mounting hole, characterized in that: The auxiliary assembly jig comprises: A limit block, wherein the limit block is provided with an alignment hole, and the limit block is used to abut against one end surface of the accessory so that the alignment hole is aligned with the mounting hole of the accessory; and A knock pin comprises a first part and a second part stacked together, wherein the first part has a convex surface, the convex surface is bent away from the second part, the convex surface is used to apply force to the end surface of the base away from the elastic column relative to the elastic column, so that the elastic column is inserted into the mounting hole, the second part is coaxially arranged with the first part, and the convex surface is arranged adjacent to the circumferential surface of the second part.

2. The auxiliary assembly jig according to claim 1, characterized in that: The convex surface is a spherical surface.

3. The auxiliary assembly jig according to claim 1, characterized in that: The projection circumference of the convex surface on the second portion is smaller than the aperture of the alignment hole.

4. The auxiliary assembly jig according to claim 1, characterized in that: When viewed along a stacking direction of the first portion and the second portion, a maximum height of the first portion is smaller than a height of the second portion.

5. The auxiliary assembly jig according to claim 4, characterized in that: The height of the second portion is at least greater than twice the maximum height of the first portion.

6. The auxiliary assembly jig according to claim 1, characterized in that: The second part is a cylinder.

7. The auxiliary assembly jig according to claim 1, characterized in that: The alignment hole is a blind hole.

8. The auxiliary assembly jig according to claim 1, characterized in that: The depth of the alignment hole is less than or equal to one third of the thickness of the limiting block.

9. The auxiliary assembly jig according to claim 1, characterized in that: The vertical section of the alignment hole is square.

10. The auxiliary assembly jig according to any one of claims 1 to 8, characterized in that: The number of the alignment holes is at least two, at least two of the alignment holes are exposed on the same side of the limiting block and are spaced apart from each other, and the number of the knocking pins is the same as the number of the alignment holes.

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