Assembly tool for button assembly

Abstract

The utility model discloses an assembly tool for a button assembly, including a frame, a pressure head device and a positioning seat, wherein the positioning seat is fixedly arranged on the support platform, and the positioning seat has a positioning part, and the positioning part can be inserted into the hollow cavity in a corresponding and cooperative manner, and the positioning seat is at least partially or entirely made of magnetic material. When the assembly tool is used to assemble the button assembly, after the button core is positioned on the support platform through the positioning seat, the spring piece is installed on the button core or the spring piece that has been installed on the outer peripheral part of the button core can be adsorbed by the positioning seat and kept relatively fixed with the button core. In the process of assembling the outer ring of the button to the outer peripheral part of the button core and the spring piece under the pressure head device, the spring piece is not easy to be misplaced or ejected, thereby improving the assembly qualification rate and assembly efficiency of the button assembly.

Description

Technical Field

[0001] The utility model relates to an assembly tool for a button assembly, in particular to an assembly tool for a button assembly in a handle of an ultrasonic surgical knife. Background Art

[0002] Ultrasonic scalpels have been widely used as a conventional surgical instrument for hemostatic separation and tissue coagulation of soft tissues in various surgeries. They usually include an ultrasonic scalpel handle and a cutter. A transducer is arranged in the ultrasonic scalpel handle, and the cutter has at least a cutter rod connected to the amplitude rod shaft of the transducer.

[0003] In order to avoid excessive torque during the process of connecting the knife rod to the amplitude rod shaft and causing damage to the transducer, in an ultrasonic surgical knife disclosed in Chinese patent document CN113349889B, a button assembly is provided at the front of the handle, and the torsion assembly has a knob inner ring, a knob outer ring, and two sets of springs arranged between the outer periphery of the inner ring of the knob and the inner periphery of the outer ring of the knob, so that the torque value between the inner ring of the knob and the outer ring of the knob is controlled within a set range, thereby ensuring that the torque value is not too large to cause the connecting screw to be twisted off or cause damage to the transducer and affect the normal performance of the transducer. During assembly, the two sets of springs need to be first installed on the outer periphery of the inner ring of the knob, and then the outer ring of the knob is sleeved on the outer periphery of the springs. In the prior art, the assembly of the above-mentioned button assembly is completely completed manually, and the springs are prone to misalignment or ejection during the assembly process, and the qualified rate of the product is very low and time-consuming and labor-intensive. Utility Model Content

[0004] The utility model aims to provide an assembly tool for a button assembly to solve one or more problems of the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An assembly tool for a button assembly, the button assembly to be assembled comprises a button core, a spring sheet and a button outer ring, the button core has a hollow cavity penetrating along the axial direction, the button outer ring is sleeved on the outer peripheral portion of the button core, the spring sheet is made of a metal material and the spring sheet is clamped between the outer peripheral portion of the button core and the inner peripheral portion of the button outer ring, the assembly tool comprises:

[0007] A frame, on which a support platform is arranged;

[0008] A pressing head device, comprising a lifting seat arranged on the frame and capable of being lifted and lowered in a vertical direction, and a pressing head assembly arranged on the lifting seat, wherein the pressing head assembly is configured to connect the button outer ring and drive the button outer ring to move;

[0009] A positioning seat, the positioning seat is fixedly arranged on the supporting platform, and the positioning seat has a positioning portion, and the positioning portion can be inserted into the hollow cavity in a corresponding and matching manner,

[0010] Wherein, the positioning seat is at least partially or entirely made of magnetic material.

[0011] In some embodiments, the positioning seat includes a first positioning seat and a second positioning seat that are detachably arranged, the first positioning seat is fixedly arranged on the supporting platform, and the second positioning seat can be cooperatively inserted into the hollow cavity, wherein part or all of the second positioning seat is made of magnetic material.

[0012] In some embodiments, the first positioning seat includes a first column and a second column connected in the up and down direction, a positioning hole is provided on the support platform, the second column can be inserted in the positioning hole, the outer diameter of the first column is larger than the outer diameter of the second column, the first column protrudes above the table surface of the support platform, and the first column constitutes the positioning part.

[0013] In some embodiments, the second positioning seat includes a third column and a fourth column connected in the up and down direction, the outer diameter of the third column matches the inner diameter of the hollow cavity, and the outer diameter of the fourth column is smaller than the diameter of the third column, wherein the second positioning seat is made of magnetic material as a whole.

[0014] In some embodiments, the assembly tool also includes a pressing device, which includes a mounting seat, a push rod that can be movably arranged on the mounting seat in a horizontal direction, and a pressing piece arranged at one end of the push rod, wherein the pressing piece has a pressing surface facing the positioning seat, and the contour of the pressing surface matches the outer periphery of the spring sheet, wherein the mounting seat can be raised and lowered on the frame in a vertical direction.

[0015] In some embodiments, the height of the pressing member is smaller than the height of the spring sheet; the pressing device has two groups, and the two pressing surfaces in the two groups of the pressing devices are arranged opposite to each other; the length directions of the two push rods in the two groups of the pressing devices are parallel to or extend colinearly with each other; the pressing device is located on the movement path of the pressure head assembly, and the frame is provided with a first elastic member that provides the force required for the upward movement of the mounting seat.

[0016] In some embodiments, the pressing device also includes a second elastic member that provides the push rod with movement along its own length direction so that the pressing member moves away from the positioning seat, wherein a pressing operation part is provided at the other end of the push rod, and the second elastic member is sleeved on the push rod and located between the mounting seat and the pressing operation part.

[0017] In some embodiments, the pressing head assembly includes at least an outer ring positioning block, the outer ring positioning block has a clamping structure for clamping on the outer peripheral portion of the button outer ring, and the outer ring positioning block has a push surface. When the button outer ring is clamped on the outer ring positioning block through the clamping structure, the push surface presses downward against the button outer ring.

[0018] In some embodiments, the outer ring positioning block has a hollow channel penetrating in the up-down direction, and the press head assembly further includes:

[0019] A positioning column extending in the up-down direction and axially passing through the hollow channel, wherein the upper end of the positioning column is fixedly connected to the outer ring positioning block;

[0020] A guide sleeve, the guide sleeve is slidably mounted on the positioning column;

[0021] A third elastic member, disposed on the positioning column and providing a force required for the guide sleeve to move downward;

[0022] Among them, a plurality of positioning grooves extending along the axial direction are arranged on the circumferential cavity wall of the hollow cavity of the button core, and a plurality of positioning protrusions are arranged on the outer circumference of the guide sleeve. When the guide sleeve is axially inserted into the hollow cavity, the plurality of positioning protrusions are matched and connected with the plurality of positioning grooves in a one-to-one correspondence.

[0023] In some embodiments, the guide sleeve is slidably mounted on the positioning column via a positioning pin, the axis of the positioning pin is perpendicular to the axis of the guide sleeve, and the positioning column is provided with a limiting groove for providing sliding guidance and limitation for the positioning pin.

[0024] In some embodiments, the lower portion of the positioning column has a cavity, and the cavity can be coaxially fitted on the upper portion of the positioning seat.

[0025] Due to the application of the above-mentioned technical scheme, the utility model has the following advantages compared with the prior art: when the assembly tool of the utility model is used to assemble the button assembly, after the button core is positioned on the support platform through the positioning seat, the spring piece is installed on the button core or the spring piece that has been installed on the outer periphery of the button core can be adsorbed by the positioning seat and kept relatively fixed with the button core. In the process of assembling the outer ring of the button to the button core and the outer periphery of the spring piece when the pressure head device is downward, the spring piece is not easy to be misplaced or popped out, thereby improving the assembly qualification rate and assembly efficiency of the button assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Attached Figure 1 It is a schematic diagram of the structure decomposition of a button assembly to be assembled in an assembly tool according to an embodiment of the utility model;

[0027] Attached Figure 2 For attachment Figure 1 A front view structural schematic diagram of a button assembly;

[0028] Attached Figure 3 This is a schematic diagram of the overall structure of an assembly tool according to an embodiment of the utility model;

[0029] Attached Figure 4 For attachment Figure 3 A front view structural schematic diagram of an assembly tool;

[0030] Attached Figure 5 For attachment Figure 3 A schematic diagram of the structure of the pressure head assembly in the assembly tool;

[0031] Attached Figure 6 For attachment Figure 5 A half-section schematic diagram of a pressure head assembly;

[0032] Attached Figure 7 For attachment Figure 5 A longitudinal cross-sectional schematic diagram of a pressure head assembly;

[0033] Attached Figure 8 For attachment Figure 3 A schematic diagram of the overall structure of the assembly tool when assembling the button assembly;

[0034] Attached Fig. 9 For attachment Figure 8 A front view of

[0035] Attached Fig.10 For attachment Fig. 9 Schematic diagram of longitudinal section;

[0036] Attached Fig.11 For attachment Fig.10 Enlarged schematic diagram of the middle P part;

[0037] Wherein: 10, button outer ring; 20, button core; 201, installation slot; 202, positioning slot; 30, spring piece;

[0038] 1. Frame; 11. Support platform; 110. Positioning hole; 12. Guide seat; 13. Guide column; 14. Spring;

[0039] 2. Press head device; 21. Lifting seat; 22. Outer ring positioning block; 221. Boss; 222. Slot; 223. Pushing surface; 23. Guide sleeve; 231. Positioning protrusion; 24. Positioning column; 241. Limiting groove; 242. Limiting ring; 243. Cavity; 25. Connecting screw; 26. Third elastic member; 27. Positioning pin;

[0040] 3. Pressing device; 31. Push rod; 311. Pressing operation part; 32. Pressing member; 321. Pressing surface; 33. Second elastic member; 34. Mounting seat; 35. First elastic member;

[0041] 4. Positioning seat; 41. First positioning seat; 411. First column; 412. Second column; 42. Second positioning seat; 421. Third column; 422. Fourth column;

[0042] 5. Operating handle. DETAILED DESCRIPTION

[0043] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments, so that the advantages and features of the utility model can be more easily understood by those skilled in the art. Obviously, the embodiments described in this application are only part of the embodiments of the application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0044] See also Figure 1 , Figure 2 The button assembly to be assembled in one embodiment is shown, which includes a button outer ring 10, a button core 20 and a spring piece 30. The button core 20 is generally cylindrical and has a hollow cavity extending in the axial direction. The circumferential cavity wall of the hollow cavity is provided with a plurality of positioning grooves extending in the axial direction (not shown in the figure); the outer peripheral portion of the button core 20 is provided with a mounting groove 201 for mounting the spring piece 30. The spring piece 30 is made of metal material, and there are two groups of the spring pieces 30. The main body of the spring piece 30 is arc-shaped and has a bent structure at both ends; the button outer ring 10 has a through hole extending in the axial direction, and a structure for matching with the spring piece 30 is also provided on the button outer ring 10. The spring piece 30 is installed in the mounting groove 201 and is arranged around the outer peripheral portion of the button core 20. The button outer ring 10 is sleeved on the outer side of the button core 20 and the spring piece 30. The spring piece 30 is sandwiched between the outer peripheral portion of the button core 20 and the inner peripheral portion of the button outer ring 10.

[0045] See also Figures 3 to 11 The assembly tool of the button assembly shown includes:

[0046] The frame 1 is provided with a support platform 11, which is mainly used to place the button core 20;

[0047] The pressing head device 2 includes a lifting seat 21 which is arranged on the frame 1 and can be lifted and lowered in the vertical direction, and a pressing head assembly arranged on the lifting seat 21, wherein the pressing head assembly is configured to be able to connect with the button outer ring 10 and drive the button outer ring 10 to move, specifically, to be able to drive the button outer ring 10 to move up and down with the lifting and lowering of the lifting seat 21;

[0048] The positioning seat 4 is fixedly arranged on the supporting platform 11, and the positioning seat 4 has a positioning portion, which can be correspondingly inserted into the hollow cavity of the button core 20 to position the button core 20 on the supporting platform 11. The positioning seat 4 is at least partially or completely made of magnetic material.

[0049] In this embodiment, the positioning seat 4 is at least partially or entirely made of magnetic material. In this way, when the spring piece 30 is assembled to the outer periphery of the button core 20 and the button core 20 is placed on the positioning seat 4, the spring piece 30 can remain fixed on the installation groove 201 on the outer periphery of the button core 20 under the action of the elastic adsorption force generated by the magnetic material on the positioning seat 4. In this way, during the assembly process, the operator does not need to manually hold the spring piece 30 to keep it in the installation groove 201, which makes it easier for the operator to operate the assembly tool with both hands. At the same time, it also further improves the accuracy of the assembly process and reduces manual errors.

[0050] The assembly tool also includes a holding device 3, which includes a mounting seat 34, a push rod 31 that can be movably arranged on the mounting seat 34 in the horizontal direction, and a holding piece 32 arranged at one end of the push rod 31, the holding piece 32 has a holding surface 321 facing the positioning seat 4, the contour of the holding surface 321 matches the outer peripheral portion of the spring sheet 30, the height of the holding piece 32 is less than the height of the spring sheet 30, the mounting seat 34 can be lifted and lowered on the frame 1 in the vertical direction, and the holding piece 32 is provided at one end of the push rod 31. The surface 321 can be abutted against the outer circumferential surface of the spring piece 30, and during the assembly process, after the button outer ring 10 is sleeved onto the outside of a portion of the spring piece 30, the mounting seat 34 can move downward relative to the frame 1, so that the holding member 32 slides downward along the spring piece 30, thereby allowing the holding surface 321 to remain against the spring piece 30 until the button outer ring 10 is completely sleeved onto the outside of the spring piece 30. In this way, it can be ensured that the spring piece 30 will not deviate or pop out during the assembly process, thereby improving the assembly qualification rate.

[0051] See also Figures 3 to 11 As shown, in the assembly tool of this embodiment, each part is specifically arranged in the following manner:

[0052] Specifically, the positioning seat 4 includes a first positioning seat 41 and a second positioning seat 42 which are detachably arranged. The first positioning seat 41 is fixedly arranged on the support platform 11, and the second positioning seat 42 can be inserted into the hollow cavity of the button core 20 in a cooperative manner, wherein part or all of the second positioning seat 42 is made of magnetic material. In this way, when performing the assembly operation, the operator can first insert the second positioning seat 42 into the hollow cavity of the button core 20, then install the spring sheet 30, and then place it as a whole on the first positioning seat 41, so that the button core 20 with the spring sheet 30 can be positioned on the support platform 11, which is more convenient in operation.

[0053] See also Fig.10 , Fig.11 As shown, the first positioning seat 41 includes a first column 411 and a second column 412 connected along the up and down directions, and a positioning hole 110 is provided on the support platform 11. The second column 412 can be inserted in the positioning hole 110 in a cooperative manner. The outer diameter of the first column 411 is greater than the outer diameter of the second column 412. The first column 411 protrudes above the table surface of the support platform 11, and the first column 411 constitutes a positioning portion of the positioning seat, which can be inserted in the hollow cavity of the button core 20 in a cooperative manner to realize the positioning and installation of the button core 20 on the support platform 11.

[0054] The second positioning seat 42 includes a third column 421 and a fourth column 422 connected in the up-down direction, the outer diameter of the third column 421 matches the inner diameter of the cavity in the button core 20, and the outer diameter of the fourth column 422 is smaller than the diameter of the third column 421. The second positioning seat 42 is made of magnetic material as a whole. In other embodiments, a magnetic component can also be fixedly provided on the upper part of the fourth column 422 to form adsorption on the spring 30.

[0055] During the assembly process, the pressing device 3 is driven to move downward so that the pressing member 32 slides relative to the spring sheet 30. The frame 1 is provided with a first elastic member 35 that provides the force required for the mounting seat 34 to move upward. In this embodiment, the pressing device 3 is located on the movement path of the pressing head device 2. During the downward movement of the pressing head device 2, a component on the pressing head device 2 can be pressed downward against a component of the pressing device 3, thereby pushing the pressing device 3 to move downward automatically as a whole, thereby causing the pressing member 32 to move downward. Specifically, the pressing member 32 is arranged on the movement path of the pressing head assembly, and during the downward movement of the pressing head device 2, the pressing member 32 is pushed downward so that the pressing device 3 moves downward as a whole. In this way, during the assembly process, after the outer ring 10 of the button is sleeved with a part of the spring sheet 30, the pressing device 3 maintains the pressing of the spring sheet 30 and moves downward as a whole, which can avoid the dislocation of the spring sheet 30 to the greatest extent.

[0056] In this embodiment, two groups of pressing devices 3 are provided to respectively press two groups of spring sheets 30. The two pressing surfaces 321 in the two groups of pressing devices 3 are arranged opposite to each other, and the length directions of the two push rods 31 in the two groups of pressing devices are parallel or colinearly extended.

[0057] The pressing device 3 also includes a second elastic member 33 that allows the push rod 31 to move along its length direction so that the pressing member 32 is away from the positioning seat 4. The other end of the push rod 31 is provided with a pressing operation portion 311. The second elastic member 33 is a spring that is sleeved on the push rod 31 and located between the mounting seat 34 and the pressing operation portion 311. When there is no external force, under the action of the second elastic member 33, there is a large distance between the pressing members 32 on both sides and the positioning seat 4. After the button core 20 and the spring sheet 30 are assembled on the positioning seat 4, there is still a certain distance between the pressing member 32 and the spring sheet 30. At this time, it is only necessary to press the pressing operation portions 311 on both sides so that the two push rods 31 move toward each other, so that the pressing members 32 on both sides can be correspondingly pressed against the outer peripheral portions of the two groups of spring sheets 30, so as to achieve the pressing of the spring sheets 30 and keep them fixed on the button core 20. When there is no need to hold the spring piece 30 , the operator releases the pressure on the pressing operating parts 311 on both sides, and under the action of the second elastic member 33 , or with the assistance of manual operation, the push rod 31 moves away from the positioning seat 4 , so that the holding member 32 is reset and disengaged from the button core 20 or the spring piece 30 .

[0058] In the specific configuration, the size of the pressing operation portion 311 is larger than that of the spring sheet 30, which is more convenient to operate than manually pressing the spring sheet 30 during the traditional assembly process. At the same time, the pressing member 32 cooperates with the main body of the spring sheet 30, so that the spring sheet 30 can be well attached to the button core 20 along the circumferential direction, and the pressing position is larger, so that the spring sheet 30 is not easily deformed during the assembly process.

[0059] In the ram device 2, the upper part of the lifting seat 21 is connected to a driving mechanism, and the driving mechanism includes an operating handle 5. By rotating the operating handle 5, the lifting seat 21 can be driven to move upward or downward. A plurality of guide columns 13 are provided on the frame 1, specifically two of them, on which springs 14 are sleeved, and the guide columns 13 are slidably connected to the lifting seat 21 or to the frame 1. When there is no external force, the lifting seat 21 is maintained at a relatively high height position under the action of the spring 14; when the operating handle 5 is rotated to drive the lifting seat 21 to move downward, the spring 14 is squeezed, and the lifting seat 21 and the ram assembly mounted thereon move downward together; when the operating handle 5 is released, the lifting seat 21 and the ram assembly move upward and reset under the action of the spring 14.

[0060] See also Figures 6 to 8 As shown, the pressure head assembly includes at least an outer ring positioning block 22. The frame 1 is also provided with a guide seat 12 for providing sliding guidance for the outer ring positioning block 22. The guide seat 12 is provided with a guide hole for the outer ring positioning block 22 to slide through in the up and down directions.

[0061] The outer ring positioning block 22 has a clamping structure for clamping on the outer periphery of the button outer ring 10. The outer ring positioning block 22 has a push surface 223. When the button outer ring 10 is clamped on the outer ring positioning block 22 through the above-mentioned clamping structure, the push surface 223 presses downward against the button outer ring 10. Here, the clamping structure on the outer ring positioning block 22 is specifically set according to the external structure of the button outer ring 10, and specifically includes a plurality of bosses 221 and clamping grooves 222 arranged at intervals from each other along the circumferential direction, a clamping groove 222 is formed between two adjacent bosses 221, and an installation cavity is formed between the bosses 221. The main body of the button outer ring 10 can be accommodated in the installation cavity, and the knob part on its outer periphery can be correspondingly clamped in each clamping groove 222 to realize the clamping of the button outer ring 10. After the button outer ring 10 is assembled onto the button core 20 and fixed to the button core 20, when the pressure head assembly is driven upward, the outer ring positioning block 22 will automatically disengage from the button outer ring 10.

[0062] The outer ring positioning block 22 has a hollow passage running through it in the up-down direction. The pressure head assembly further includes a positioning column 24, a guide sleeve 23 and a third elastic member 26. The positioning column 24 extends in the up-down direction and is axially arranged in the hollow passage of the outer ring positioning block 22. The upper end of the positioning column 24 is fixedly connected to the upper end of the outer ring positioning block 22 by a connecting screw 25. The guide sleeve 23 is slidably mounted on the positioning column 24. The third elastic member 26 is arranged on the positioning column 24 and provides the force required for the guide sleeve 23 to move downward. Among them, a limiting ring 242 is arranged at the lower end of the positioning column 24 to limit the guide sleeve 23 on the limiting positioning column 24. The third elastic member 26 is a spring, which is mounted on the positioning column 24 and abuts between the outer ring positioning block 22 and the guide sleeve 23. The guide sleeve 23 is slidably mounted on the positioning column 24 through the positioning pin 27. The axis of the positioning pin 27 is perpendicular to the axis of the guide sleeve 23. The positioning column 24 is provided with a limiting groove 241 for providing sliding guidance and limiting for the positioning pin 27, thereby limiting the sliding range of the guide sleeve 23 on the positioning column 24. In the process of driving the pressure head assembly downward, the downward stroke of the guide sleeve 23 and the downward stroke of the outer ring positioning block 22 can be inconsistent, so as to meet the corresponding matching requirements of various parts on the button outer ring 10 and various structures on the button core 20 when the button outer ring 10 is assembled on the button core 20.

[0063] A plurality of positioning protrusions 231 are arranged at intervals on the outer circumference of the guide sleeve 23. When the guide sleeve 23 is inserted into the hollow cavity of the button core 20 along the axial direction, the plurality of positioning protrusions 231 are matched one by one with the plurality of positioning grooves 202 in the hollow cavity of the button core 20. Since the position of the guide sleeve 23 and the positioning column 24 are relatively fixed in the circumferential direction, the position of the guide sleeve 23 and the outer ring positioning block 22 and the relative position of the button outer ring 10 are fixed. Therefore, when the positioning protrusions 231 and the plurality of positioning grooves 202 on the button core 20 are matched with each other, the positions of the button outer ring 10 and the button core 20 in the circumferential direction can be matched correspondingly, so as to realize accurate alignment installation.

[0064] The positioning column 24 is hollow and has a cavity 243 at its lower part. The outer diameter of the fourth column 422 of the second positioning seat 42 on the positioning seat 4 matches the inner diameter of the cavity 243. During the downward movement of the positioning column 24, the fourth column 422 can be inserted into the cavity 243 of the positioning column 24. This structure can make way for the downward movement of the positioning column 24 and can further provide guidance for the downward movement of the pressure head assembly.

[0065] When the assembly tool of this embodiment is used to assemble the button assembly, the following steps can be specifically followed:

[0066] (1) Install the button outer ring 10 to the bottom of the pressing head assembly of the pressing head device 2;

[0067] (2) Install the spring piece 30 in the installation groove 201 of the button core 20, and set the button core 20 on the support platform 11 through the positioning seat 4. Specifically, in this step, the second positioning seat 42 can be inserted into the hollow cavity of the button core 20 first, and then the two groups of spring pieces 30 are installed on the button core 20 respectively; then the button core 20 and the second positioning seat 42 are installed on the first positioning seat 41 together, so that the first column 411 on the upper part of the first positioning seat 41 is inserted into the hollow cavity of the button core 20, and the positioning installation of the button core 20 on the support platform 11 is completed;

[0068] (3) The position of the button core 20 is adjusted so that the arc-shaped main parts of the two sets of spring sheets 30 correspond to the holding surfaces 321 of the holding members 32 on both sides. Then, the push rods 31 on both sides are pushed to make the holding members 32 on both sides move toward each other, so that the holding surfaces 321 of the two holding members 32 abut against the outer sides of the spring sheets 30 on the corresponding sides and are located in the middle of the spring sheets 30, so as to keep pushing the push rods 31 on both sides.

[0069] (4) Turn the operating handle 5 to drive the pressing head device 2 to move downward, and the lifting seat 21 and the pressing head assembly move the button outer ring 10 downward. The button outer ring 10 is first sleeved onto the upper part of the button core 20. As the pressing head device 2 moves downward, the button outer ring 10 is sleeved onto the upper part of the spring piece 30;

[0070] The pressing head device 2 continues to move downward, pushing the holding device 3 to move downward as a whole, and the holding member 32 moves downward. The holding surface 321 slides downward along the outer surface of the spring sheet 30 and keeps against the spring sheet 30 to prevent the spring sheet 30 from deviating or popping out.

[0071] After the button outer ring 10 has been completely sleeved onto the outer periphery of the spring sheet 30, release the pressure on the two side push rods 31, and pull the two side push rods 31 outwards when necessary, so that the pressure holding member 32 moves outwards and away from the spring sheet 30;

[0072] (5) Continue to drive the pressing head device 2 downward until the button outer ring 10 is assembled to a preset position on the button core 20, and the assembly is completed. The spring piece 30 is sandwiched between the button outer ring 10 and the button core 20;

[0073] (6) Release the operating handle 5, the pressure head device 2 is reset upward, and the button outer ring 10 is separated from the pressure head assembly. At this time, the assembled button assembly can be taken out.

[0074] In summary, the use of the assembly tool of the button assembly of the utility model to install the above-mentioned button assembly can ensure the correct installation of the spring piece 30 between the button core 20 and the button outer ring 10, reduce the operating requirements for the operator, and improve the assembly qualification rate and assembly efficiency of the button assembly.

[0075] It should be noted that the above descriptions of the directions such as front, back, left, right, up, down, etc. are all defined by reference to the directions observed by the operator when using the assembly tool to assemble the button assembly. The above definitions of directions are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention.

[0076] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. An assembly tool for a button assembly, wherein the button assembly to be assembled comprises a button core, a spring sheet and a button outer ring, wherein the button core has a hollow cavity extending axially therethrough, the button outer ring is sleeved on the outer peripheral portion of the button core, the spring sheet is made of a metal material and the spring sheet is clamped between the outer peripheral portion of the button core and the inner peripheral portion of the button outer ring, characterized in that: The assembly tool comprises: A frame, on which a support platform is arranged; A pressing head device, comprising a lifting seat arranged on the frame and capable of being lifted and lowered in a vertical direction, and a pressing head assembly arranged on the lifting seat, wherein the pressing head assembly is configured to connect the button outer ring and drive the button outer ring to move; A positioning seat, the positioning seat is fixedly arranged on the supporting platform, and the positioning seat has a positioning portion, and the positioning portion can be inserted into the hollow cavity in a corresponding and matching manner, Wherein, the positioning seat is at least partially or entirely made of magnetic material.

2. The assembly tool according to claim 1, characterized in that: The positioning seat includes a first positioning seat and a second positioning seat which are detachably arranged, wherein the first positioning seat is fixedly arranged on the supporting platform, and the second positioning seat can be cooperatively inserted into the hollow cavity, wherein part or all of the second positioning seat is made of magnetic material.

3. The assembly tool according to claim 2, characterized in that: The first positioning seat includes a first column and a second column connected in the up and down direction. A positioning hole is provided on the support platform. The second column can be inserted into the positioning hole in a cooperative manner. The outer diameter of the first column is larger than the outer diameter of the second column. The first column protrudes above the table surface of the support platform, and the first column constitutes the positioning part.

4. The assembly tool according to claim 2, characterized in that: The second positioning seat includes a third column and a fourth column connected in the up and down direction, the outer diameter of the third column matches the inner diameter of the hollow cavity, and the outer diameter of the fourth column is smaller than the diameter of the third column, wherein the second positioning seat is made of magnetic material as a whole.

5. The assembly tool according to claim 1, characterized in that: The assembly tool also includes a pressing device, which includes a mounting seat, a push rod that can be movably arranged on the mounting seat in a horizontal direction, and a pressing piece arranged at one end of the push rod, wherein the pressing piece has a pressing surface facing the positioning seat, and the contour of the pressing surface matches the outer periphery of the spring sheet, wherein the mounting seat can be raised and lowered on the frame in a vertical direction.

6. The assembly tool according to claim 5, characterized in that: The height of the pressing member is smaller than the height of the spring sheet; there are two groups of pressing devices, and the two pressing surfaces in the two groups of pressing devices are arranged opposite to each other; the length directions of the two push rods in the two groups of pressing devices are parallel to each other or extend in a colinear manner; the pressing device is located on the movement path of the pressure head assembly, and the frame is provided with a first elastic member that provides the force required for the upward movement of the mounting seat.

7. The assembly tool according to claim 5, characterized in that: The pressing device also includes a second elastic member that allows the push rod to move along its own length direction so that the pressing member moves away from the positioning seat, wherein a pressing operating part is provided at the other end of the push rod, and the second elastic member is sleeved on the push rod and located between the mounting seat and the pressing operating part.

8. The assembly tool according to any one of claims 1 to 7, characterized in that: The pressure head assembly at least includes an outer ring positioning block, which has a clamping structure for clamping on the outer peripheral portion of the button outer ring, and has a push surface. When the button outer ring is clamped on the outer ring positioning block through the clamping structure, the push surface presses downward against the button outer ring.

9. The assembly tool according to claim 8, characterized in that: The outer ring positioning block has a hollow passage penetrating in the up-down direction, and the pressure head assembly further includes: A positioning column extending in the up-down direction and axially passing through the hollow channel, wherein the upper end of the positioning column is fixedly connected to the outer ring positioning block; A guide sleeve, the guide sleeve is slidably mounted on the positioning column; A third elastic member, disposed on the positioning column and providing a force required for the guide sleeve to move downward; Among them, a plurality of positioning grooves extending along the axial direction are arranged on the circumferential cavity wall of the hollow cavity of the button core, and a plurality of positioning protrusions are arranged on the outer circumference of the guide sleeve. When the guide sleeve is axially inserted into the hollow cavity, the plurality of positioning protrusions are matched and connected with the plurality of positioning grooves in a one-to-one correspondence.

10. The assembly tool according to claim 9, characterized in that: The guide sleeve is slidably mounted on the positioning column via a positioning pin, the axis of the positioning pin and the axis of the guide sleeve are perpendicular to each other, and the positioning column is provided with a limiting groove for providing sliding guidance and limiting for the positioning pin.

11. The assembly tool according to claim 9, characterized in that: The lower part of the positioning column has a cavity, and the cavity can be coaxially fitted on the upper part of the positioning seat.

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