A multi-position tooling for sealing rubber rings on mobile phone button sleeves

Abstract

This utility model discloses a multi-position tooling for sealing rubber rings on mobile phone button sleeves, including a first-position tooling, a second-position tooling, and a third-position tooling. The first-position tooling includes a positioning base plate and a rubber ring positioning plate disposed on the top of the positioning base plate. The top of the rubber ring positioning plate is used to place the sealing rubber ring. This utility model uses the first-position tooling to assemble multiple sealing rubber rings onto a pointed needle expansion component, the second-position tooling to transfer the sealing rubber rings assembled on the pointed needle expansion component to a flat needle conversion component, and the third-position tooling to transfer the sealing rubber rings assembled on the flat needle conversion component to the mobile phone buttons on the button layout material. This enables the assembly of multiple sealing rubber rings in one go, reducing labor costs while improving work efficiency. It solves the problem that the existing technology of manually assembling sealing rubber rings is prone to surface scratches and breakage of the sealing rubber rings.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone button assembly technology, specifically a multi-position tooling for sealing rubber rings on mobile phone button sleeves. Background Technology

[0002] Currently, micro-shafts used for waterproofing mobile phone buttons, underwater cameras, and watches require the installation of sealing rings to achieve a waterproof seal. However, the assembly of these tiny sealing rings is mostly done manually by using tweezers to pry them open before fitting them onto the micro-shaft. This method has several drawbacks: difficulty in controlling the force used can easily lead to breakage of the sealing ring; tweezers can also scratch the surface of the sealing ring during installation; and the small size of the sealing ring can easily cause visual fatigue, leading to assembly errors and reduced production efficiency. Therefore, a multi-position tooling for installing sealing rings on mobile phone buttons is needed to address these issues. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a multi-position tooling for sealing rings on mobile phone button sleeves. It can effectively solve the problem that in the prior art, when assembling sealing rings onto small shafts such as mobile phone buttons, the sealing rings are manually pried open with tweezers, which easily leads to surface scratches and breakage of the sealing rings.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A multi-position tooling for sealing rubber rings for mobile phone button sleeves includes: a first-position tooling, a second-position tooling, and a third-position tooling; The first workstation fixture includes a positioning base plate and a rubber ring positioning plate disposed on the top of the positioning base plate, wherein the top of the rubber ring positioning plate is used to place a sealing rubber ring. The first workstation fixture also includes a needle expansion component disposed on the top of the rubber ring positioning plate. The needle expansion component includes a needle cover plate and a needle limiting plate fixedly connected to the bottom of the needle cover plate. Multiple sets of needle assemblies are disposed between the needle cover plate and the needle limiting plate. The first workstation fixture also includes a pressing plate disposed on the top of the needle expansion member. The pressing plate is used to push the needle assembly to move towards the rubber ring positioning plate and to fit the sealing rubber ring onto the needle assembly. The second workstation fixture includes an alignment base plate and a flat needle conversion component disposed on the top of the alignment base plate. The flat needle conversion component includes a flat needle cover plate and a flat needle limiting plate fixedly connected to the top of the flat needle cover plate. Multiple sets of flat needle assemblies are disposed between the flat needle cover plate and the flat needle limiting plate. The needle expansion component in the first workstation fixture is placed on top of the flat needle conversion component, wherein the needle assembly in the needle expansion component corresponds to the position of the flat needle assembly, and the sealing ring on the needle assembly is transferred to the flat needle assembly. The third workstation fixture includes a positioning plate base and a button positioning plate fixedly connected to the top of the positioning plate base. The top of the button positioning plate is fixedly positioned with button layout material. The flat needle conversion component in the second workstation fixture is placed on top of the key layout material and is used to transfer the sealing ring on the flat needle assembly to the key layout material.

[0005] Preferably, the needle assembly includes an expanding needle, a first spring washer, and a first thrust spring. The needle limiting plate has multiple needle through holes through which the needle passes. The bottom of the needle cover plate has multiple needle cover receiving grooves corresponding to the positions of the needle through holes. The expanding needle is slidably installed in the needle through holes. The first thrust spring is disposed in the needle cover receiving grooves. The first spring washer is disposed between the first thrust spring and the expanding needle.

[0006] Preferably, the top of the needle cover plate is provided with a plurality of needle cover plate through holes communicating with the needle cover plate receiving groove, and the bottom of the pressing top plate is fixedly connected with a plurality of pressing rods passing through the needle cover plate through holes.

[0007] Preferably, the top of the rubber ring positioning plate is provided with a groove, a soft rubber plate is provided in the groove, the top of the soft rubber plate is provided with a plurality of rubber ring placement slots for placing sealing rubber rings, and the bottom of the rubber ring placement slots is provided with a clearance groove on the soft rubber plate.

[0008] Preferably, the rubber ring positioning plate is fixedly connected to both sides of the first guide post, the needle cover plate and the needle limiting plate are provided with the first linear bearings that are slidably sleeved on the outside of the first guide post, and the pressure plate is provided with the second linear bearings that are slidably sleeved on the outside of the first guide post.

[0009] Preferably, the flat needle assembly includes a conversion flat needle, a second spring washer, and a second thrust spring. The flat needle limiting plate has multiple flat needle through holes through which it passes. The top of the flat needle cover plate has multiple flat needle cover plate receiving grooves corresponding to the positions of the flat needle through holes. The conversion flat needle is slidably installed in the flat needle through holes. The second thrust spring is disposed in the flat needle cover plate receiving grooves. The second spring washer is disposed between the second thrust spring and the conversion flat needle.

[0010] Preferably, the bottom of the flat needle cover plate has multiple flat needle cover plate through holes communicating with the flat needle cover plate receiving groove, and the top of the alignment base plate is fixedly connected with multiple alignment limiting rods passing through the flat needle cover plate through holes.

[0011] Preferably, a second guide post is fixedly connected to both sides of the alignment base plate, and a third linear bearing is provided on both sides of the flat needle cover plate and the flat needle limiting plate, which is slidably sleeved on the outside of the second guide post. The needle expansion member is slidably connected to the second guide post through the first linear bearing.

[0012] Preferably, the top of the button positioning plate is fixedly connected with a plurality of positioning pins, and the button layout material is provided with a plurality of positioning holes corresponding to the positions of the positioning pins.

[0013] Preferably, a third guide post is fixedly connected to both sides of the positioning plate base, the flat needle conversion component is slidably connected to the third guide post through a third linear bearing, and a stop post is also fixedly connected to both sides of the positioning plate base.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the setting of a first station fixture, a second station fixture, and a third station fixture, uses the first station fixture to assemble multiple sealing rings onto the pointed needle expansion component, the second station fixture to transfer the sealing rings assembled on the pointed needle expansion component to the flat needle conversion component, and the third station fixture to transfer the sealing rings assembled on the flat needle conversion component to the mobile phone buttons of the button layout material. This enables the assembly of multiple sealing rings in one go, reducing labor costs while improving work efficiency.

[0015] This invention features a tapered insertion end for the needle expander, which facilitates the sealing ring to be fitted onto the outside of the needle insertion end via the tapered portion. This solves the problem of surface scratches and seal ring breakage caused by manual assembly of the sealing ring in existing technologies. Attached Figure Description

[0016] Figure 1 A schematic diagram of the first station tooling structure for a multi-position tooling for sealing rubber rings on mobile phone button sleeves; Figure 2 This is a schematic diagram of the cross-sectional structure of the tooling at the first workstation; Figure 3 This is a schematic diagram of the cross-sectional structure of the needle expansion component; Figure 4 A cross-sectional view of the rubber ring positioning plate; Figure 5 A schematic diagram of the second station tooling structure for a multi-position tooling for sealing rubber rings on mobile phone button sleeves; Figure 6 This is a schematic diagram of the cross-sectional structure of the tooling at the second workstation; Figure 7 This is a cross-sectional view of the flat needle conversion component; Figure 8 A schematic diagram of the third station tooling structure for a multi-position tooling for sealing rings on mobile phone button sleeves; Figure 9 A schematic diagram of the positioning plate base, button positioning plate, and button layout material structure; Figure 10 This is a cross-sectional structural diagram of the tooling for the third workstation.

[0017] In the diagram: 1. Lower pressure plate; 11. Lower pressure rod; 2. Needle expansion component; 21. Needle cover plate; 211. Needle cover plate receiving groove; 212. Needle cover plate through hole; 22. Needle limiting plate; 221. Needle through hole; 23. Needle assembly; 231. Expanding needle; 232. First spring washer; 233. First thrust spring; 3. Rubber ring positioning plate; 31. Soft rubber plate; 311. Rubber ring placement groove; 312. Clearance groove; 32. First guide post; 4. Positioning base plate; 5. Flat needle conversion component; 51. Flat needle cover plate; 511. Flat needle cover plate receiving groove; 512. Flat needle cover plate through hole; 52. Flat needle limiting plate; 521. Flat needle through hole; 53. Flat needle assembly; 531. Converting flat needle; 532. Second spring washer; 533. Second thrust spring; 6. Alignment base plate; 61. Alignment limit rod; 62. Second guide post; 7. Button positioning plate; 71. Positioning pin; 8. Positioning plate base; 81. Third guide post; 82. Stop post; 9. Button layout material. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] Example: Please refer to Figures 1-10 This embodiment provides a multi-position tooling for sealing rubber rings on mobile phone buttons, including: a first-position tooling, a second-position tooling, and a third-position tooling. The first-position tooling, the second-position tooling, and the third-position tooling are split structures used to fit and install the sealing rubber rings onto the mobile phone buttons. This tooling design enables the assembly of multiple sealing rubber rings in one go, reducing labor costs while improving work efficiency.

[0020] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the first workstation fixture includes a positioning base plate 4 and a rubber ring positioning plate 3 set on the top of the positioning base plate 4. The positioning base plate 4 is fixedly installed on the worktable of the fixture by bolts, and the top of the rubber ring positioning plate 3 is used to place the sealing rubber ring. The first workstation fixture also includes a needle expansion component 2 set on the top of the rubber ring positioning plate 3. The needle expansion component 2 includes a needle cover plate 21 and a needle limiting plate 22 fixedly connected to the bottom of the needle cover plate 21. The needle cover plate 21 and the needle limiting plate 22 are fixedly connected by bolts. Multiple sets of needle assemblies 23 are arranged between the needle cover plate 21 and the needle limiting plate 22. In an optional embodiment of this example, the needle assembly 23 includes an expanding needle 231, a first spring washer 232, and a first thrust spring 233. The needle limiting plate 22 has multiple needle through holes 221 through which it passes. The bottom of the needle cover plate 21 has multiple needle cover receiving grooves 211 corresponding to the positions of the needle through holes 221. The expanding needle 231 is slidably installed within the needle through holes 221. The first thrust spring 233 is disposed within the needle cover receiving grooves 211. The first spring washer 232 is disposed between the first thrust spring 233 and the expanding needle 231. The insertion end of the expanding needle 231... The needle 231 is inserted through the needle through hole 221 and placed outside the needle assembly 23. The insertion end of the expanding needle 231 is tapered, which helps the sealing ring to be sleeved on the outside of the insertion end of the expanding needle 231 through the tapered part. The limiting end of the expanding needle 231 is placed through the needle through hole 221 and placed in the needle cover plate receiving groove 211. An expanding needle limiting block is provided to prevent the expanding needle 231 from detaching from the needle expansion member 2. One end of the first thrust spring 233 abuts against the inner wall of the needle cover plate receiving groove 211, and the other end abuts against the first spring washer 232, pressing the first spring washer 232 tightly against the limiting end of the expanding needle 231. The first station tooling also includes a pressing plate 1 set on the top of the needle expansion member 2. The pressing plate 1 is used to push the needle assembly 23 to move towards the rubber ring positioning plate 3 and to fit the sealing rubber ring onto the needle assembly 23. The top of the needle cover plate 21 is provided with a plurality of needle cover plate through holes 212 communicating with the needle cover plate receiving groove 211. The diameter of the needle cover plate through holes 212 is smaller than the diameter of the needle cover plate receiving groove 211. The bottom of the pressure plate 1 is fixedly connected with a plurality of pressure rods 11 passing through the needle cover plate through holes 212. The top of the rubber ring positioning plate 3 has a groove, and a soft rubber plate 31 is placed in the groove. The soft rubber plate 31 is snapped and fixed in the groove, which facilitates the replacement of the damaged soft rubber plate 31. The soft rubber material of the soft rubber plate 31 has elasticity, which meets the requirements of the outward expansion when the expansion needle 231 is inserted and the upward pushing force of the sealing rubber ring. This helps to fit the sealing rubber ring onto the expansion needle 231. The top of the soft rubber plate 31 has multiple rubber ring placement slots 311 for placing the sealing rubber ring. The bottom of the rubber ring placement slot 311 is located on the soft rubber plate 31 and has a clearance slot 312. The diameter of the rubber ring placement slot 311 is larger than the diameter of the sealing rubber ring, which provides space when the sealing rubber ring deforms when it is fitted onto the expansion needle 231. The clearance slot 312 is used to provide clearance space for the expansion needle 231 to contact the soft rubber plate 31. The number of rubber ring placement slots 311, needle assembly 23, and pressing rod 11 are the same and their positions correspond one-to-one.

[0021] Specifically, when using the first station fixture, multiple sealing rings are placed one by one into the multiple ring placement slots 311 of the ring positioning plate 3. Then, the needle expansion member 2 is placed from top to bottom on the top of the ring positioning plate 3, so that the insertion end of the expansion needle 231 in the needle assembly 23 is initially inserted into the sealing ring. Then, the pressing plate 1 is placed from top to bottom on the top of the needle expansion member 2, so that the pressing rod 11 passes through the needle cover plate through hole 212 and the first thrust spring 233 contacts the first spring washer 232. Then, the pressing plate 1 is pressed down. The downward pressing plate 1 causes the downward pressing rod 11 to move downward. The downward pressing rod 11 pushes the first spring washer 232 and the expanding needle 231 downward, causing the expanding needle 231 to move towards the sealing ring on the rubber ring positioning plate 3. Since the insertion end of the expanding needle 231 is a conical structure, during the downward movement of the expanding needle 231, the insertion end of the expanding needle 231 gradually enters the relief groove 312 on the soft rubber plate 31. The sealing ring expands and fits on the outside of the insertion end of the expanding needle 231, thereby assembling multiple sealing rings onto the needle expansion part 2.

[0022] In this embodiment, as Figure 2 , Figure 3 and Figure 4As shown, the rubber ring positioning plate 3 has a first guide post 32 fixedly connected to both sides. The needle cover plate 21 and the needle limiting plate 22 are provided with a first linear bearing that is slidably sleeved on the outside of the first guide post 32. The first linear bearing is fixedly connected to the needle cover plate 21 and the needle limiting plate 22. The lower pressure plate 1 has a second linear bearing that is slidably sleeved on the outside of the first guide post 32. The second linear bearing is fixedly connected to the lower pressure plate 1. When the needle expansion member 2 and the lower pressure plate 1 are assembled with the positioning base plate 4, the needle expansion member 2 and the positioning base plate 4 are slidably engaged through the first linear bearing and the first guide post 32, and the lower pressure plate 1 and the positioning base plate 4 are slidably engaged through the second linear bearing and the first guide post 32. This provides a limiting and guiding function for the needle expansion member 2 and the lower pressure plate 1, improving the positioning accuracy of the assembly of the needle expansion member 2 and the lower pressure plate 1 with the positioning base plate 4.

[0023] In this embodiment, as Figure 5 , Figure 6 and Figure 7 As shown, the second workstation fixture includes an alignment base plate 6 and a flat needle conversion component 5 disposed on the top of the alignment base plate 6. The alignment base plate 6 is fixedly installed on the worktable of the fixture by bolts. The flat needle conversion component 5 includes a flat needle cover plate 51 and a flat needle limiting plate 52 fixedly connected to the top of the flat needle cover plate 51. The flat needle cover plate 51 and the flat needle limiting plate 52 are fixedly connected by bolts. Multiple sets of flat needle assemblies 53 are disposed between the flat needle cover plate 51 and the flat needle limiting plate 52. In one optional embodiment of this example, the flat needle assembly 53 includes a conversion flat needle 531, a second spring washer 532, and a second thrust spring 533. The flat needle limiting plate 52 has multiple flat needle through holes 521 through which it passes. The top of the flat needle cover plate 51 has multiple flat needle cover plate receiving grooves 511 corresponding to the positions of the flat needle through holes 521. The conversion flat needle 531 is slidably installed in the flat needle through hole 521. The second thrust spring 533 is disposed in the flat needle cover plate receiving groove 511. The second spring washer 532 is disposed in the second thrust spring 531. Between the 3 and the conversion flat needle 531, the mating end of the conversion flat needle 531 passes through the flat needle through hole 521 and is placed outside the flat needle assembly 53. The limiting end of the conversion flat needle 531 passes through the flat needle through hole 521 and is placed in the flat needle cover plate receiving groove 511. A conversion flat needle limiting block is provided to prevent the conversion flat needle 531 from detaching from the flat needle conversion part 5. One end of the second thrust spring 533 abuts against the inner wall of the flat needle cover plate receiving groove 511, and the other end abuts against the second spring washer 532, pressing the second spring washer 532 tightly against the limiting end of the conversion flat needle 531. The bottom of the flat needle cover plate 51 is provided with a plurality of flat needle cover plate through holes 512 communicating with the flat needle cover plate receiving groove 511. The diameter of the flat needle cover plate through holes 512 is smaller than the diameter of the flat needle cover plate receiving groove 511. The top of the alignment base plate 6 is fixedly connected with a plurality of alignment limiting rods 61 passing through the flat needle cover plate through holes 512. The needle expansion component 2 in the first station tooling is placed on top of the flat needle conversion component 5. The number of needle components 23, flat needle components 53 and alignment limit rods 61 are the same and correspond one-to-one. The needle components 23 in the needle expansion component 2 correspond to the flat needle components 53. The sealing ring on the needle component 23 is transferred to the flat needle components 53. The diameter of the conversion flat needle 531 is the same as the diameter of the expansion needle 231. The mating end of the conversion flat needle 531 is provided with a conical groove that matches the insertion end of the expansion needle 231. When the conversion flat needle 531 and the expansion needle 231 are mated, the conical groove at the mating end of the conversion flat needle 531 accommodates the conical structure of the insertion end of the expansion needle 231, reducing the gap when the conversion flat needle 531 and the expansion needle 231 are mated, and reducing the obstruction to the transfer of the sealing ring.

[0024] Specifically, when using the second workstation fixture, the flat needle converter 5 is placed from top to bottom on the top of the alignment base plate 6, so that the alignment limiting rod 61 passes through the flat needle cover plate through hole 512 and the second thrust spring 533 contacts the second spring washer 532. Then, the pointed needle expansion piece 2 equipped with a sealing ring is placed upside down on top of the flat needle converter 5. At this time, the expanding pointed needle 231 in the pointed needle expansion piece 2 is set downward, so that the pointed needle assembly 23 in the pointed needle expansion piece 2 corresponds to the flat needle assembly 53 in the flat needle converter 5. The docking end of the conversion flat needle 531 in the flat needle assembly 53 docks with the insertion end of the expanding pointed needle 231 in the pointed needle assembly 23. Then, the pointed needle expansion piece 2 is pressed down, so that the position of the pointed needle expansion piece 2 moves closer to the flat needle converter 5, and the rotation... Under the constraint of the positioning limit rod 61, the position of the replacement flat needle 531 will not change. The position of the expansion needle 231 will also not change when it abuts against the conversion flat needle 531, causing the expansion needle 231 to move into the needle cover plate receiving groove 211, pushing the first spring washer 232 to squeeze the first thrust spring 233. When the relative positions of the expansion needle 231 and the conversion flat needle 531 remain unchanged, that is, when the needle cover plate 21 moves closer to the flat needle cover plate 51, the needle cover plate 21 will push the sealing ring sleeved on the outside of the expansion needle 231 to transfer onto the conversion flat needle 531. When the mating end of the conversion flat needle 531 is inserted into the needle through hole 221, the sealing ring can be transferred to the outside of the expansion needle 231, completing the conversion and assembly of the sealing ring on the flat needle conversion part 5.

[0025] In this embodiment, as Figure 6 and Figure 7As shown, the alignment base plate 6 has two fixedly connected second guide posts 62 on both sides. The flat needle cover plate 51 and the flat needle limiting plate 52 are both provided with third linear bearings that are slidably sleeved on the outside of the second guide posts 62. The needle expansion piece 2 is slidably connected to the second guide post 62 through the first linear bearing. The third linear bearing is fixedly connected to the flat needle cover plate 51 and the flat needle limiting plate 52. When the flat needle conversion piece 5 and the needle expansion piece 2 are assembled with the alignment base plate 6, the flat needle conversion piece 5 and the alignment base plate 6 are slidably engaged through the third linear bearing and the second guide post 62, and the needle expansion piece 2 and the alignment base plate 6 are slidably engaged through the first linear bearing and the second guide post 62. This plays a limiting and guiding role for the flat needle conversion piece 5 and the needle expansion piece 2, improving the positioning accuracy of the assembly of the flat needle conversion piece 5 and the needle expansion piece 2 with the alignment base plate 6.

[0026] In this embodiment, as Figure 8 , Figure 9 and Figure 10 As shown, the tooling for the third workstation includes a positioning plate base 8 and a button positioning plate 7 fixedly connected to the top of the positioning plate base 8. The positioning plate base 8 is fixedly installed on the worktable of the tooling by bolts. A button layout material 9 is fixedly positioned on the top of the button positioning plate 7. Multiple positioning pins 71 are fixedly connected to the top of the button positioning plate 7. Multiple positioning holes corresponding to the positions of the positioning pins 71 are opened on the button layout material 9. When assembling and fixing the button layout material 9 and the button positioning plate 7, the positioning holes of the button layout material 9 are aligned with the positioning pins 71 on the button positioning plate 7, so that the button layout material 9 is positioned and fixed on the button positioning plate 7. The flat needle conversion part 5 in the second station tooling is placed on top of the key layout material 9 and is used to transfer the sealing ring on the flat needle assembly 53 to the key layout material 9. The button layout material 9 has multiple sets of mobile phone buttons to be assembled. The number of mobile phone buttons to be assembled in each set is the same as the number of flat needle components 53 in the flat needle conversion part 5, and their positions correspond one-to-one.

[0027] Specifically, the button layout material 9 is placed on top of the button positioning plate 7, and positioned and fixed on the button positioning plate 7 by connecting it with the positioning pin 71 through the positioning hole. Then, the flat pin conversion piece 5 is placed upside down on top of the button layout material 9, so that the conversion flat pin 531 in the flat pin conversion piece 5 is set downwards, and the docking end of the conversion flat pin 531 is connected with the assembly part of the mobile phone button in the button layout material 9. By pressing the flat pin conversion piece 5 downwards, the position of the flat pin conversion piece 5 is moved closer to the button layout material 9. The conversion pin 531 in the conversion pin adapter 5 is connected to the assembly of the mobile phone button. The position of the conversion pin 531 will not change, while the pin cover plate 51 in the conversion pin adapter 5 moves closer to the button layout material 9. The pin cover plate 51 will push the sealing ring sleeved on the outside of the conversion pin 531 to move towards the assembly of the mobile phone button. When the assembly of the mobile phone button is inserted into the pin through hole 521, the sealing ring can be transferred to the outside of the assembly of the mobile phone button, completing the operation of assembling the sealing ring onto the mobile phone button.

[0028] In this embodiment, as Figure 9 As shown, the positioning plate base 8 has a third guide post 81 fixedly connected to both sides. The flat needle conversion part 5 is slidably connected to the third guide post 81 through the third linear bearing. The flat needle conversion part 5 and the positioning plate base 8 are slidably engaged through the third linear bearing and the third guide post 81, which plays a limiting and guiding role for the flat needle conversion part 5 and improves the positioning accuracy of the assembly between the flat needle conversion part 5 and the positioning plate base 8.

[0029] In this embodiment, as Figure 9 As shown, the positioning plate base 8 is also fixedly connected to both sides of the stop post 82. The position of the stop post 82 corresponds to the flat needle conversion part 5. When the sealing ring is installed on the mobile phone button, the flat needle cover plate 51 of the flat needle conversion part 5 contacts the stop post 82. The stop post 82 plays a role in limiting and blocking the movement of the flat needle conversion part 5 to ensure the accuracy of the sealing ring installation position on the mobile phone button. There are multiple sets of mobile phone buttons on the button layout material 9. Each set of mobile phone buttons is matched with a flat needle conversion part 5 for the conversion and assembly of the sealing ring. Therefore, there are also multiple sets of the third guide post 81 and the stop post 82.

[0030] As a preferred embodiment of this invention, the present invention can be extended to automation to achieve automated operation. The automated lifting drive mechanism is used for the downward pressing operation of the pressure plate 1 in the first workstation fixture, the needle expansion member 2 in the second workstation fixture, and the flat needle conversion member 5 in the third workstation fixture. The automated moving conveying mechanism is used for the position change of the needle expansion member 2 and the flat needle conversion member 5 between the three workstation fixtures, etc., thereby reducing labor costs and improving production efficiency.

[0031] Working principle: In use, multiple sealing rings are first placed one by one into the multiple ring placement slots 311 of the ring positioning plate 3 of the first workstation fixture. Then, the needle expansion member 2 is slidably engaged with the first guide post 32 through the first linear bearing, and placed from top to bottom on the top of the ring positioning plate 3, so that the insertion end of the expansion needle 231 in the needle assembly 23 is initially inserted into the sealing ring. Then, the pressing top plate 1 is slidably engaged with the first guide post 32 through the second linear bearing, and placed from top to bottom on the top of the needle expansion member 2, so that the pressing top rod 11 passes through the needle cover plate through hole 212 and the first thrust spring 2. 33 contacts the first spring washer 232, and then the lower pressure plate 1 is pressed down, so that the lower pressure plate 1 drives the lower pressure rod 11 to move down. The lower pressure rod 11 pushes the first spring washer 232 and the expansion pin 231 to move down, so that the expansion pin 231 moves towards the sealing ring on the rubber ring positioning plate 3. Since the insertion end of the expansion pin 231 is a conical structure, during the downward movement of the expansion pin 231, the insertion end of the expansion pin 231 gradually enters the relief groove 312 on the soft rubber plate 31, and the sealing ring is expanded and sleeved on the outside of the insertion end of the expansion pin 231, so as to assemble multiple sealing rings onto the pin expansion part 2. Next, the needle expansion component 2 equipped with a sealing ring is removed from the first workstation fixture. The flat needle conversion component 5 is slidably engaged with the second guide post 62 via the third linear bearing. The flat needle conversion component 5 is placed from top to bottom on the top of the alignment base plate 6, so that the alignment limiting rod 61 passes through the through hole 512 of the flat needle cover plate and the second thrust spring 533 contacts the second spring washer 532. Then, the needle expansion component 2 is slidably engaged with the second guide post 62 via the first linear bearing. The needle expansion component 2 is placed upside down on top of the flat needle conversion component 5, with the expansion needle 231 in the needle expansion component 2 facing downwards. This ensures that the needle assembly 23 in the needle expansion component 2 corresponds to the flat needle assembly 53 in the flat needle conversion component 5. The mating end of the conversion flat needle 531 in the flat needle assembly 53 is mated with the insertion end of the expansion needle 231 in the needle assembly 23. Then, the needle expansion is performed. When part 2 is pressed down, the position of the needle expansion part 2 moves closer to the flat needle conversion part 5. Under the restriction of the positioning limit rod 61, the position of the conversion flat needle 531 will not change. The position of the expansion needle 231 will also not change when it abuts against the conversion flat needle 531, so that the expansion needle 231 moves into the needle cover plate receiving groove 211, pushing the first spring washer 232 to squeeze the first thrust spring 233. When the relative positions of the expansion needle 231 and the conversion flat needle 531 remain unchanged, that is, when the needle cover plate 21 moves closer to the flat needle cover plate 51, the needle cover plate 21 will push the sealing ring sleeved on the outside of the expansion needle 231 to transfer onto the conversion flat needle 531. When the mating end of the conversion flat needle 531 is inserted into the needle through hole 221, the sealing ring can be transferred to the outside of the expansion needle 231, completing the conversion and assembly of the sealing ring on the flat needle conversion part 5. Finally, remove the flat needle conversion component 5 equipped with the sealing ring from the second station fixture. Place the button layout material 9 on top of the button positioning plate 7, and fix the button layout material 9 on the button positioning plate 7 by connecting it with the positioning pin 71 through the positioning hole. Then, through the sliding cooperation between the third linear bearing and the third guide post 81, place the flat needle conversion component 5 upside down on top of the button layout material 9. With the conversion flat needle 531 in the flat needle conversion component 5 facing downwards, the docking end of the conversion flat needle 531 is connected to the assembly point of the mobile phone button in the button layout material 9. Press the flat needle conversion component 5 downwards, and the position of the flat needle conversion component 5 moves closer to the button layout material 9. The conversion flat needle 531 in the flat needle conversion component 5 is connected to the assembly point of the mobile phone button in the button layout material 9. The assembly point of the mobile phone button is connected and abutted. The position of the conversion pin 531 does not change. The pin cover plate 51 in the pin conversion part 5 moves closer to the button layout material 9. The pin cover plate 51 pushes the sealing ring sleeved on the outside of the conversion pin 531 to move towards the assembly point of the mobile phone button. When the assembly point of the mobile phone button is inserted into the pin through hole 521, the sealing ring can be transferred to the outside of the assembly point of the mobile phone button, completing the operation of assembling the sealing ring onto the mobile phone button. This can realize the assembly of multiple sealing rings at one time, reducing labor costs and improving work efficiency, reducing damage to the sealing ring, and solving the problem that the existing technology of manually assembling sealing rings is prone to surface scratches and sealing ring breakage.

[0032] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A multi-position tooling for sealing rings on mobile phone button sleeves, characterized in that, include: First station fixture, second station fixture and third station fixture; The first workstation fixture includes a positioning base plate (4) and a rubber ring positioning plate (3) set on the top of the positioning base plate (4). The top of the rubber ring positioning plate (3) is used to place a sealing rubber ring. The first workstation fixture also includes a needle expansion member (2) disposed on the top of the rubber ring positioning plate (3). The needle expansion member (2) includes a needle cover plate (21) and a needle limiting plate (22) fixedly connected to the bottom of the needle cover plate (21). Multiple sets of needle assemblies (23) are disposed between the needle cover plate (21) and the needle limiting plate (22). The first workstation fixture also includes a pressing plate (1) set on the top of the needle expansion member (2). The pressing plate (1) is used to push the needle assembly (23) to move towards the rubber ring positioning plate (3) and to fit the sealing rubber ring onto the needle assembly (23). The second workstation fixture includes an alignment base plate (6) and a flat needle conversion component (5) disposed on the top of the alignment base plate (6). The flat needle conversion component (5) includes a flat needle cover plate (51) and a flat needle limiting plate (52) fixedly connected to the top of the flat needle cover plate (51). Multiple sets of flat needle assemblies (53) are disposed between the flat needle cover plate (51) and the flat needle limiting plate (52). The needle expansion component (2) in the first workstation fixture is placed on top of the flat needle conversion component (5), wherein the needle assembly (23) in the needle expansion component (2) corresponds to the flat needle assembly (53), and the sealing ring on the needle assembly (23) is transferred to the flat needle assembly (53); The third workstation fixture includes a positioning plate base (8) and a button positioning plate (7) fixedly connected to the top of the positioning plate base (8). The top of the button positioning plate (7) is fixedly positioned with button layout material (9). The flat needle conversion component (5) in the second workstation fixture is placed on top of the key layout material (9) to transfer the sealing ring on the flat needle assembly (53) to the key layout material (9).

2. The multi-position tooling for sealing a rubber ring of a mobile phone key cover according to claim 1, characterized in that, The needle assembly (23) includes an expanding needle (231), a first spring washer (232) and a first thrust spring (233). The needle limiting plate (22) has multiple needle through holes (221) through which it passes. The bottom of the needle cover plate (21) has multiple needle cover receiving grooves (211) corresponding to the positions of the needle through holes (221). The expanding needle (231) is slidably installed in the needle through hole (221). The first thrust spring (233) is disposed in the needle cover receiving groove (211). The first spring washer (232) is disposed between the first thrust spring (233) and the expanding needle (231).

3. The multi-position tooling for sealing a grommet for a cell phone case according to claim 2, wherein, The top of the needle cover plate (21) is provided with a plurality of needle cover plate through holes (212) communicating with the needle cover plate receiving groove (211), and the bottom of the pressure plate (1) is fixedly connected with a plurality of pressure rods (11) passing through the needle cover plate through holes (212).

4. The multi-position tooling for sealing rings on mobile phone button sleeves according to claim 1, characterized in that, The top of the rubber ring positioning plate (3) is provided with a groove, and a soft rubber plate (31) is provided in the groove. The top of the soft rubber plate (31) is provided with a plurality of rubber ring placement slots (311) for placing the sealing rubber ring. The bottom of the rubber ring placement slot (311) is provided with an avoidance slot (312) on the soft rubber plate (31).

5. The multi-position tooling for sealing a grommet for a cell phone case according to claim 1, wherein, The rubber ring positioning plate (3) is fixedly connected to the first guide post (32) on both sides. The needle cover plate (21) and the needle limiting plate (22) are provided with the first linear bearing that is slidably sleeved on the outside of the first guide post (32) on both sides. The pressure plate (1) is provided with the second linear bearing that is slidably sleeved on the outside of the first guide post (32) on both sides.

6. The multi-position tooling for sealing a grommet for a cell phone case according to claim 1, wherein, The flat needle assembly (53) includes a conversion flat needle (531), a second spring washer (532), and a second thrust spring (533). The flat needle limiting plate (52) has multiple flat needle through holes (521) through which it passes. The top of the flat needle cover plate (51) has multiple flat needle cover plate receiving grooves (511) corresponding to the positions of the flat needle through holes (521). The conversion flat needle (531) is slidably installed in the flat needle through hole (521). The second thrust spring (533) is disposed in the flat needle cover plate receiving groove (511). The second spring washer (532) is disposed between the second thrust spring (533) and the conversion flat needle (531).

7. The multi-position tooling for sealing a grommet for a cell phone case according to claim 6, wherein, The bottom of the flat needle cover plate (51) is provided with a plurality of flat needle cover plate through holes (512) communicating with the flat needle cover plate receiving groove (511), and the top of the alignment base plate (6) is fixedly connected with a plurality of alignment limiting rods (61) passing through the flat needle cover plate through holes (512).

8. The multi-position tooling for sealing a grommet for a cell phone case according to claim 1, wherein, The alignment base plate (6) is fixedly connected to the second guide post (62) on both sides. The flat needle cover plate (51) and the flat needle limiting plate (52) are provided with a third linear bearing that is slidably sleeved on the outside of the second guide post (62). The needle expansion member (2) is slidably connected to the second guide post (62) through the first linear bearing.

9. A multi-position tooling for sealing rings on mobile phone button sleeves according to claim 1, characterized in that, The top of the button positioning plate (7) is fixedly connected with multiple positioning pins (71), and the button layout material (9) is provided with multiple positioning holes corresponding to the positions of the positioning pins (71).

10. The multi-position tooling for sealing a grommet for a cell phone case according to claim 8, wherein, The positioning plate base (8) is fixedly connected to both sides of a third guide post (81), and the flat needle conversion part (5) is slidably connected to the third guide post (81) through a third linear bearing. The positioning plate base (8) is also fixedly connected to both sides of a stop post (82).

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