Keyboard keycap separation assembly jig

Abstract

The application relates to the technical field of key cap separation jigs, and provides a keyboard key cap separation and assembly jig, which comprises a water inlet lower die, a clamp plate which is detachably connected on the water inlet lower die, a bearing surface for bearing a key piece on the clamp plate, a key cap containing groove on the clamp plate, the key cap containing groove being used for containing a key cap punched off from the key piece, a water inlet upper die which is arranged on the clamp plate, a plurality of punch heads for the key caps being arranged on the water inlet upper die at positions corresponding to the key cap containing grooves, a limiting step being arranged at the end edge of the punch head away from the water inlet upper die, and the limiting step being matched with the edge of the key cap. When the key cap is punched, the water inlet upper die punches the key cap on the key piece in a first direction downwards, so that the key cap is separated and falls into the key cap containing groove. The limiting step and the end part on the punch head are respectively abutted against the edge and the bottom of the key cap, the contact area between the two is increased, and the efficiency of the key cap punching and separation is improved.

Description

Technical Field

[0001] This application relates to the field of keycap separation fixture technology, and more particularly to a keyboard keycap separation and assembly fixture. Background Technology

[0002] Keyboard keycap separation fixtures are primarily used to accurately and efficiently separate keycaps from keycap workpieces (which are injection molded). Modern keyboard keycap separation fixtures typically use a punch head on the upper die of the sprue to directly punch the bottom of the keycap, thus detaching the keycap from the keycap workpiece.

[0003] However, this traditional stamping head only contacts the keycap at its tip, while the keycap is connected to the workpiece frame via its own edge. During the stamping process, the edge of the keycap is subjected to tensile force and deforms, which affects the keycap's separation efficiency. Ultimately, this can easily lead to the keycap not completely separating from the workpiece.

[0004] Therefore, the aforementioned technical defects urgently need to be addressed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this application is to provide a keyboard keycap separation assembly fixture, which aims to improve the efficiency of keycap stamping separation, while preventing the keycap workpiece frame from being lifted, so that it always fits against the bearing surface of the fixture plate.

[0006] The technical solution adopted by this application to solve the technical problem is as follows: A keyboard keycap separation and assembly fixture, comprising: Lower mold for sprue; The fixture plate is detachably connected to the lower die of the flushing port. The fixture plate is provided with a bearing surface for bearing the key workpiece. The fixture plate is provided with several keycap receiving slots for receiving keycaps that are punched off the key workpiece. And the upper mold for the flushing port, which is set on the fixture plate. The upper mold for the flushing port is equipped with a punching head at the position corresponding to several keycap receiving slots. The punching head is used to punch the keycaps on the key workpiece. Among them, a limiting step is provided at the end edge of the stamping head away from the upper die of the flushing port, and the limiting step matches the edge of the keycap.

[0007] In one possible implementation, a sprue spring plate is provided between the sprue upper die and the fixture plate. The sprue spring plate has a limit opening at the position of the punch head, and the sprue spring plate is spaced apart from the sprue upper die. At least one elastic element is provided between the flushing spring plate and the flushing upper mold to allow the flushing spring plate to elastically extend and retract along a first direction, wherein the first direction is the thickness direction of the clamping plate, and the flushing spring plate is used to abut against the button workpiece.

[0008] In one possible implementation, the cross-sectional dimension of the limiting opening is larger than the cross-sectional dimension of the stamping head, and the cross-sectional dimension of the limiting opening is smaller than the cross-sectional dimension of the keycap.

[0009] In one possible implementation, the upper mold of the flushing port is provided with several limiting posts, which extend along a first direction and are used to connect the flushing port spring plate. The flushing port spring plate is slidably connected to the limiting posts.

[0010] In one possible implementation, at least one stamping head is detachably connected to the upper die of the flushing port.

[0011] In one possible implementation, a bakelite base is provided below the lower mold of the flushing port, and the bakelite base is used to fix the lower mold of the flushing port.

[0012] In one possible implementation, a through hole is provided at the bottom of the keycap receiving groove. The size of the through hole is smaller than the size of the keycap receiving groove, so that the bottom of the keycap receiving groove forms a step for supporting the keycap.

[0013] In one possible implementation, the upper mold of the flushing port, the lower mold of the flushing port, and the flushing port spring plate are all metal plates.

[0014] Compared with the prior art, this application provides a keyboard keycap separation and assembly fixture. In this invention, during keycap stamping, the upper die of the punching nozzle presses the keycap on the keycap workpiece downwards along a first direction, causing the keycap to fall into the keycap receiving groove on the fixture plate. The limiting step and end of the punching head respectively abut against the edge and bottom of the keycap, effectively increasing the contact area between them and improving the efficiency of keycap stamping separation. Simultaneously, the punching nozzle spring plate prevents the keycap workpiece frame from being lifted, ensuring it remains in contact with the bearing surface of the fixture plate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a keyboard keycap separation and assembly fixture provided in this embodiment; Figure 2This is an exploded view of the overall structure of a keyboard keycap separation and assembly fixture provided in this embodiment; Figure 3 This is an exploded view of the flushing port upper mold and flushing port spring plate of a keyboard keycap separation and assembly fixture provided in this embodiment; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is an exploded view of another overall structure of a keyboard keycap separation and assembly fixture provided in this embodiment; Figure 6 yes Figure 5 Enlarged view of point B in the middle.

[0017] In the diagram: 1. Lower mold for flushing; 2. Fixture plate; 21. Bearing surface; 22. Keycap receiving groove; 221. Through hole; 3. Upper mold for flushing; 31. Stamping head; 311. Limiting step; 4. Key workpiece; 41. Keycap; 5. Flushing spring plate; 51. Limiting opening; 52. Elastic element; 53. Limiting post; 6. Bakelite base. Detailed Implementation

[0018] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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 a limitation on 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0021] Furthermore, the technical features involved in the different embodiments of the present invention described above can be combined with each other as long as they do not conflict with each other.

[0022] This utility model provides, for example Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a keyboard keycap 41 separation and assembly fixture is used to accurately and efficiently separate the keycaps 41 (which are injection molded) from the key workpiece 4. This fixture is mainly used to separate the keycaps 41 from the keyboard key workpiece 4, allowing them to be stamped and detached onto the fixture plate 2, thus facilitating subsequent assembly processes. The main structure includes: a lower sprue mold 1, a fixture plate 2, and an upper sprue mold 3. The fixture plate 2 is detachably connected to the lower sprue mold 1. A bearing surface 21 is provided on the fixture plate 2 to support the key workpiece 4. Several keycap receiving slots 22 are provided on the fixture plate 2, arranged according to the layout of the keyboard keys. Adjacent keycaps 41 can have the same size and shape, or they can be different. The keycap receiving slot 22 is used to receive the keycaps 41 stamped off the keycap workpiece 4; the upper mold 3 for the sprue is set on the fixture plate 2, and stamping heads 31 are respectively arranged on the upper mold 3 at positions corresponding to the keycap receiving slots 22. That is, several stamping heads 31 are arranged on the upper mold 3 for the sprue, and the arrangement of the stamping heads 31 is according to the layout of the keyboard keys. Moreover, the shape and size of adjacent stamping heads 31 can be the same or different. The stamping heads 31 are used to stamp the keycaps 41 on the keycap workpiece 4; wherein, for example Figure 4 As shown, a limiting step 311 is formed at the end edge of the stamping head 31 away from the upper mold 3 of the flushing port, and the limiting step 311 matches the edge of the keycap 41. At the same time, the end of the stamping head 31 matches the bottom of the keycap 41. This allows the bottom and edge of the stamping head 31 to abut against the bottom and edge (frame) of the keycap 41, respectively.

[0023] It should be noted that current keyboard keycap stamping separation fixtures typically use a stamping head 31 on the upper die 3 of the sprue to directly stamp the bottom of the keycap 41, thereby detaching the keycap 41 from the key workpiece 4. However, this traditional stamping head 31 only contacts the keycap 41 at its end, while the keycap 41 is connected to the key workpiece frame through its own edge. During the stamping process, the edge of the keycap 41 is subjected to tensile force and deforms, which affects the detachment efficiency of the keycap 41. Ultimately, this can easily lead to a situation where the keycap 41 cannot be completely separated from the key workpiece.

[0024] In this invention, during the stamping of the keycap 41, the upper die 3 of the flushing nozzle presses the keycap 41 on the key workpiece 4 downwards along a first direction, causing the keycap 41 to fall into the keycap receiving groove 22 on the fixture plate 2. The limiting step 311 and the end of the stamping head 31 abut against the edge and bottom of the keycap 41 respectively, effectively increasing the contact area between them and improving the efficiency of keycap 41 stamping separation. Simultaneously, the flushing nozzle spring plate 5 prevents the frame of the key workpiece 4 from being lifted, ensuring it remains in contact with the bearing surface 21 on the fixture plate 2.

[0025] Specifically, this fixture needs to be installed on the stamping equipment before use. The upper die 3 for the sprue is fixed to the lifting head of the stamping equipment. The upper die 3 is raised and lowered using the lifting head. During the stamping operation, the key workpiece 4 is placed on the bearing surface 21 of the fixture plate 2, and then the stamping equipment is started, causing the upper die 3 for the sprue to descend. The stamping head 31 below the upper die 3 forks against the keycap 41, causing the keycap 41 to detach from the frame of the key workpiece 4 and enter the keycap receiving groove 22 on the fixture plate 2. After the keycap 41 is separated by stamping, the operator can transfer the fixture plate 2 containing the keycap 41 to the next process for assembling the keycap 41.

[0026] Furthermore, such as Figure 2 , Figure 3 and Figure 5 As shown, a flushing spring plate 5 is provided between the flushing upper die 3 and the fixture plate 2. The flushing spring plate 5 has a limit opening 51 at the position corresponding to the stamping head 31. The flushing spring plate 5 is spaced apart from the flushing upper die 3, and at least one elastic element 52 is provided between the flushing spring plate 5 and the flushing upper die 3 to allow the flushing spring plate 5 to elastically extend and retract along a first direction, which is the thickness direction of the fixture plate 2. The flushing spring plate 5 is used to abut against the button workpiece 4.

[0027] Understandably, due to the elastic expansion and contraction of the flushing plate 5 along the first direction, the punching head 31 below the flushing upper die 3 can pass through the limiting opening 51 and abut against the keycap 41 when it descends during punching. Furthermore, after each punch, the flushing upper die 3 needs to rise to its initial position. During this process, the punching head 31 retracts from the limiting opening 51, and the flushing plate 5 remains abutted against the keycap workpiece 4 frame throughout, preventing the keycap workpiece 4 frame from being pulled up as the flushing upper die 3 rises. This ensures that the keycap workpiece 4 frame remains in contact with the bearing surface 21 on the fixture plate 2.

[0028] Furthermore, the cross-sectional dimension of the limiting opening 51 is larger than that of the stamping head 31, while the cross-sectional dimension of the limiting opening 51 is smaller than that of the keycap 41. Specifically, the smaller cross-sectional dimension of the limiting opening 51 compared to the keycap 41 allows the keycap 41 on the stamping head 31 to be scraped off by the edge of the limiting opening 51 during the upward movement of the upper die 3 of the sprue, preventing the keycap 41 from being lifted up by the stamping head 31.

[0029] Furthermore, such as Figure 3 and Figure 5 As shown, the upper mold 3 of the flushing port is provided with several limiting posts 53. The limiting posts 53 extend along the first direction and are used to connect the flushing port spring plate 5. The flushing port spring plate 5 is slidably connected to the limiting posts 53. It can be understood that the flushing port spring plate 5 can slide along the extension direction of the limiting posts 53.

[0030] Furthermore, such as Figure 3 As shown, at least one stamping head 31 is detachably connected to the upper die 3 of the sprue. In this embodiment, the stamping head 31 is detachably connected to the upper die 3 of the sprue. The production line can adjust the arrangement of the stamping heads 31 according to the required keyboard model, thereby saving the cost of remaking the mold.

[0031] Furthermore, such as Figure 1 , Figure 2 As shown, a bakelite base 6 is provided below the lower die 1 of the flushing nozzle, and the bakelite base 6 is used to fix the lower die 1 of the flushing nozzle. It can be understood that in this embodiment, the lower die 1 of the flushing nozzle is fixed by the bakelite base 6, so that the lower die 1 of the flushing nozzle can be fixed on the worktable of the stamping equipment.

[0032] Furthermore, such as Figure 5 , Figure 6As shown, a through hole 221 is provided at the bottom of the keycap receiving groove 22. The size of the through hole 221 is smaller than the size of the keycap receiving groove 22, so that the bottom of the keycap receiving groove 22 forms a step for supporting the keycap 41. It can be understood that providing a through hole 221 at the bottom of the keycap receiving groove 22 facilitates lifting the keycap 41 from the bottom of the keycap receiving groove 22 on the bottom of the jig plate 2 (the bottom of the keycap receiving groove 22) in the next process, so that the keycap 41 can be efficiently assembled onto the keyboard core.

[0033] Furthermore, the upper mold 3, lower mold 1, and spring plate 5 of the sprue are all made of metal plates. It is understandable that metal fixtures possess high structural strength, allowing them to maintain good structural accuracy even during high-frequency use.

[0034] In summary, this application provides a keyboard keycap 41 separation and assembly fixture. During the stamping of the keycap 41, the upper die 3 of the punching nozzle presses the keycap 41 downwards along a first direction, causing the keycap 41 to fall into the keycap receiving groove 22 on the fixture plate 2. The limiting step 311 and the end of the punching head 31 abut against the edge and bottom of the keycap 41, effectively increasing the contact area between them and improving the efficiency of keycap 41 stamping separation. Simultaneously, the punching nozzle spring plate 5 prevents the keycap 4 frame from being lifted, ensuring it remains in contact with the bearing surface 21 on the fixture plate 2.

[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A keyboard keycap separation and assembly fixture, characterized in that, include: Lower mold for sprue; A fixture plate is detachably connected to the lower mold of the flushing port. A bearing surface is provided on the fixture plate for bearing the key workpiece. A plurality of keycap receiving slots are provided on the fixture plate for receiving keycaps that are punched off the key workpiece. And a flushing port upper mold, the flushing port upper mold is disposed on the fixture plate, and a punching head is respectively disposed on the flushing port upper mold at the positions corresponding to a plurality of keycap receiving slots, the punching head being used to punch the keycaps on the key workpiece; Wherein, a limiting step is provided at the end edge of the stamping head away from the upper edge of the flushing port, and the limiting step matches the edge of the keycap.

2. The keyboard keycap separation and assembly fixture according to claim 1, characterized in that, A flushing spring plate is provided between the flushing upper mold and the clamping plate. The flushing spring plate has a limit opening corresponding to the position of the punching head. The flushing spring plate is spaced apart from the flushing upper mold. At least one elastic element is provided between the flushing spring plate and the flushing upper mold to allow the flushing spring plate to elastically extend and retract along a first direction, wherein the first direction is the thickness direction of the clamping plate, and the flushing spring plate is used to abut against the button workpiece.

3. The keyboard keycap separation and assembly fixture according to claim 2, characterized in that, The cross-sectional dimension of the limiting opening is larger than the cross-sectional dimension of the stamping head, and the cross-sectional dimension of the limiting opening is smaller than the cross-sectional dimension of the keycap.

4. A keyboard keycap separation and assembly fixture according to claim 2, characterized in that, The upper mold of the flushing port is provided with several limiting posts, which extend along a first direction and are used to connect the flushing port spring plate. The flushing port spring plate is slidably connected to the limiting posts.

5. A keyboard keycap separation and assembly fixture according to claim 1, characterized in that, At least one of the stamping heads is detachably connected to the upper die of the flushing port.

6. A keyboard keycap separation and assembly fixture according to claim 1, characterized in that, A bakelite base is provided below the lower mold of the flushing port, and the bakelite base is used to fix the lower mold of the flushing port.

7. A keyboard keycap separation and assembly fixture according to claim 1, characterized in that, The bottom of the keycap receiving groove has a through hole, the size of which is smaller than the size of the keycap receiving groove, so that the bottom of the keycap receiving groove forms a step for supporting the keycap.

8. A keyboard keycap separation and assembly fixture according to claim 2, characterized in that, The upper mold of the flushing port, the lower mold of the flushing port, and the flushing port spring plate are all metal plates.

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