Semi-automatic assembling and positioning tool for door handle

Abstract

The utility model discloses a semi-automatic assembling and positioning tool for a door handle, which comprises a tool positioning seat and a mandrel petal outward moving component, a mandrel hole is arranged on the tool positioning seat, a plurality of mandrel petals are movably connected onto the tool positioning seat, the mandrel petals are annularly distributed by taking the mandrel hole as the center, and the mandrel petal outward moving component is arranged on the mandrel hole. The core shaft petal comprises a core shaft positioning part extending out of the core shaft hole; the mandrel petal outward moving assembly is in linkage connection with the mandrel petals so that the mandrel petals can be in a gathering posture or an expanding posture, when the mandrel petals are in the gathering posture, the size of a mandrel positioning column formed by the mandrel positioning parts is smaller than the inner diameter of the clamping spring, and when the mandrel petals are in the expanding posture, the mandrel petals are separated from one another, and mandrel limiting grooves are formed between the adjacent mandrel positioning parts. Before assembling, the core shaft petals are in a gathering state, so that the clamping spring can be easily sleeved, the core shaft petals are driven by the core shaft petal outward moving assembly to be separated from each other to form the core shaft limiting groove, the core shaft limiting groove is used for follow-up part feeding, and the assembling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to door handle assembly technical field, concretely relates to a door handle semi -automated assembly positioning frock. BACKGROUND

[0002] Door handle is an indispensable part in daily life, not only convenient for opening and closing door, also have certain decorative effect. The types and styles of door handle on the market are endless, but door handle basically contains snap spring, gasket, angle limiting piece, torsional spring, faceplate, grommet and handle part.

[0003] The function of snap spring on door handle is to limit gasket, angle limiting piece, torsional spring on handle, therefore, when snap spring is on positioning frock, need to keep interference fit with positioning shaft to be able to accurately be sleeved on handle, and if the positioning shaft for positioning snap spring and other parts is fixed structure, manual installation of snap spring on positioning shaft needs to spend great effort, reduces assembly efficiency, and manual hard pressure can lead to non-standard of snap spring in positioning shaft position and assembly posture, and easily lead to quality problem of door handle obtained in subsequent assembly.

[0004] Therefore, it is urgent to design a door handle semi -automated assembly positioning frock to solve the defects of part feeding in the current door handle semi -automated assembly process. SUMMARY

[0005] To solve the above problems, the utility model provides a door handle semi -automated assembly positioning frock, including frock positioning seat and core shaft petal outer removal assembly, the core shaft hole is set up on frock positioning seat, a plurality of core shaft petals are movably connected on frock positioning seat, and the core shaft petals form annular distribution with the core shaft hole as center, and the core shaft petals include the core shaft positioning part that protrudes from the core shaft hole;Core shaft petal outer removal assembly is linked with core shaft petal and makes core shaft petal reach the posture of gathering or the posture of rising, when core shaft petal is in the posture of gathering, the size of the core shaft positioning column formed by core shaft positioning part is less than the inner diameter of snap spring, when core shaft petal is in the posture of rising, core shaft petal separates mutually and forms the core shaft limiting slot between adjacent core shaft positioning parts.

[0006] In a preferred embodiment, the core shaft petal outer removal assembly includes a core shaft petal outer movement force source;The output end of the core shaft petal outer movement force source is directly connected to the core shaft petals to control the movement of the core shaft petals in the direction of the center of the core shaft hole, or the core shaft petal outer movement force source controls the movement of the core shaft petals in the direction of the center of the core shaft hole through a synchronous transmission mechanism.

[0007] In a preferred implementation form, the tool positioning base is provided with an outward moving channel, the mandrel petal comprises a mandrel limiting part movably connected in the outward moving channel, the synchronous transmission mechanism comprises a plurality of outward moving connecting rods, the outward moving connecting rods are rotatably connected to the tool positioning base through connecting rod pins, the linkage end of the outward moving connecting rod is linked to the mandrel limiting part, the output end of the mandrel petal outward moving force source is connected to a synchronous top plate, the synchronous top plate is driven to move to the outward moving connecting rod by the mandrel petal outward moving force source, and the synchronous top plate is provided with a plurality of outward moving trigger pieces, the outward moving trigger pieces are linked to the trigger end of the outward moving connecting rod.

[0008] In a preferred implementation form, the outward moving channel is provided with a mandrel petal reset piece, one end of the mandrel petal reset piece abuts against the mandrel limiting part, the other end of the mandrel petal reset piece abuts against the tool positioning base, the mandrel limiting part is provided with a mandrel linkage groove, the linkage end is connected in the mandrel linkage groove, the outward moving trigger piece comprises a trigger pedestal and a trigger roller rotatably connected to the trigger pedestal, the trigger end is formed with a trigger inclined surface on the side close to the trigger roller, and the trigger roller is arranged opposite to the trigger inclined surface.

[0009] In a preferred implementation form, the mandrel limiting part is provided with a mandrel linkage groove, a linkage pin is connected in the mandrel linkage groove, the linkage end is provided with a connecting rod linkage groove, the linkage pin is connected in the connecting rod linkage groove, and the outward moving trigger piece comprises a trigger pedestal and a trigger pin connected to the trigger pedestal, the trigger end is provided with a trigger stroke groove, and the trigger pin is connected in the trigger stroke groove.

[0010] In a preferred implementation form, the tool positioning base is provided with a torsional spring positioning piece and an elastic reset piece, the torsional spring positioning piece comprises a torsional spring positioning part and a torsional spring reset part, the torsional spring positioning part extends to the outside of the tool positioning base, one end of the elastic reset piece abuts against the tool positioning base, and the other end of the elastic reset piece abuts against the torsional spring reset part.

[0011] In a preferred implementation form, the tool positioning base is provided with a positioning piece movable groove, the torsional spring positioning piece is connected in the positioning piece movable groove, a positioning piece limiting pin is arranged in the positioning piece movable groove, the torsional spring positioning piece is provided with a positioning piece limiting hole, and the positioning piece limiting pin is connected in the positioning piece limiting hole.

[0012] In a preferred implementation form, the tool positioning base is connected with a handle positioning piece arranged in the mandrel hole, the handle positioning piece is located between the mandrel petals, the center of the handle positioning piece is provided with a positioning through hole, and the outer side of the end of the handle positioning piece away from the tool positioning base is provided with a plurality of notches.

[0013] In a preferred embodiment, the down-drawing assembly further comprises a down-drawing fixing plate, a down-drawing guide column connected to the down-drawing fixing plate, a down-drawing frame movably connected to the down-drawing guide column, and a down-drawing power source fixed to the down-drawing fixing plate, the jig positioning seat and the core shaft petal outward moving assembly are both located on the down-drawing frame, and a down-drawing ejector pin is connected to the down-drawing power source, wherein one end of the down-drawing ejector pin close to the handle positioning member is provided with a nail head, and the down-drawing ejector pin is connected to the positioning through hole, and the size of the nail head is larger than the diameter of the positioning through hole.

[0014] In a preferred embodiment, the down-drawing guide column is provided with a down-drawing reset spring for resetting the down-drawing frame, and the down-drawing fixing plate is provided with a down-drawing limiting column for limiting the moving stroke of the down-drawing frame.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] The working mode of the door handle semi-automatic assembly positioning tool is as follows: when the positioning tool is in the initial state, the core shaft petals are gathered together, the core shaft positioning column formed by the core shaft positioning parts of the core shaft petals has a size smaller than the inner diameter of the circlip, so that the circlip can be easily sleeved on the core shaft positioning column; after the circlip is sleeved in place, the core shaft petal outward moving assembly drives the core shaft petals to move in the opposite direction of the center of the core shaft hole, so that the core shaft positioning parts of the core shaft petals are in interference fit with the inner wall of the circlip, and the core shaft limiting grooves are formed between the adjacent core shaft positioning parts, the core shaft limiting grooves are used for positioning the gasket, the angular limiting piece and the torsional spring, and then the gasket, the angular limiting piece and the torsional spring are sleeved on the expanded core shaft positioning column, so that the circlip is in a clamping state and the components are coaxially arranged on the core shaft positioning column.

[0017] The door handle semi-automatic assembly positioning tool of the utility model is provided with the movably connected core shaft petals, the core shaft petals are in the gathered state before assembly, so that the circlip can be easily sleeved without manual hard pressing, and the problems of inaccurate positioning and non-standard assembly posture caused by manual hard pressing are avoided; when the subsequent components are assembled, the core shaft petals are driven by the core shaft petal outward moving assembly to separate from each other to form the core shaft limiting grooves, so that the remaining components can be placed on the core shaft positioning column according to the assembly angle, thereby saving the assembly time and improving the assembly efficiency.

[0018] The door handle semi-automatic assembly positioning tool of the utility model adopts the core shaft petal outward moving assembly to expand the core shaft petals, which improves the safety of production to a certain extent, reduces the occurrence of work accidents, and is easy to maintain and adjust. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1The utility model discloses a core shaft petal is not opened when tool positioning seat perspective drawing of frock.

[0020] Figure 2 The utility model discloses a core shaft petal is opened when tool positioning seat perspective drawing of frock.

[0021] Figure 3 The utility model discloses tool positioning seat explosion map of frock.

[0022] Figure 4 The utility model discloses tool positioning seat plan view of frock.

[0023] Figure 5 For Figure 4 Sectional view along A-A.

[0024] Figure 6 For Figure 4 Sectional view along B-B.

[0025] Figure 7 The utility model discloses tool positioning seat and synchronous transmission mechanism perspective drawing of frock.

[0026] Figure 8 The utility model discloses tool positioning seat and synchronous transmission mechanism partial schematic view of frock.

[0027] Figure 9 The utility model discloses door handle semi -automatic assembly positioning frock perspective drawing.

[0028] Figure 10 The utility model discloses handle positioning piece and draw down needle schematic drawing.

[0029] Figure 11 The utility model discloses tool positioning seat's bottom view of another embodiment of frock.

[0030] Figure 12 The utility model discloses tool positioning seat and synchronous transmission mechanism perspective drawing of another embodiment of frock.

[0031] Figure 13 The utility model discloses tool positioning seat and synchronous transmission mechanism partial schematic view of another embodiment of frock.

[0032] Figure 14 The utility model discloses tool positioning seat and synchronous transmission mechanism sectional view of another embodiment of frock. Specific implementation

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described in the following with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0034] Embodiment 1

[0035] In combination with the drawings Figure 1 to the drawings Figure 10 The technical scheme of the utility model is a door handle semi-automatic assembly positioning tool, which comprises a tool positioning seat 1 and a core shaft petal outward moving assembly 3, a core shaft hole 11 is formed in the tool positioning seat 1, a plurality of core shaft petals 2 are movably connected to the tool positioning seat 1, the core shaft petals 2 are annularly distributed with the core shaft hole 11 as the center, the core shaft petals 2 comprise a core shaft positioning part 22 extending out of the core shaft hole 11; the core shaft petal outward moving assembly 3 is connected with the core shaft petals 2 in linkage to make the core shaft petals 2 reach a gathering posture or an opening posture, when the core shaft petals 2 are in the gathering posture, the core shaft positioning column formed by the core shaft positioning parts 22 is smaller than the inner diameter of the circlip, when the core shaft petals 2 are in the opening posture, the core shaft petals 2 are separated from each other and the core shaft limiting grooves 23 are formed between the adjacent core shaft positioning parts 22.

[0036] In the embodiment, the core shaft positioning part 22 of each core shaft petal 2 extends to the outside of the tool positioning seat 1 to form a core shaft positioning column for sleeving the door handle parts (circlip, gasket, corner limiting piece, torsional spring, face plate and the like), and the core shaft positioning column has two states according to whether the core shaft petal outward moving assembly 3 drives the core shaft petals 2, when the core shaft petal outward moving assembly 3 does not act on the core shaft petals 2, the core shaft positioning column is in the gathering state, and when the core shaft petal outward moving assembly 3 acts on the core shaft petals 2, the core shaft positioning column is in the opening state.

[0037] In the embodiment, the number of the core shaft petals 2 is at least two, and preferably four core shaft petals 2 can be arranged.

[0038] In the embodiment, the working mode of the door handle semi-automatic assembly positioning tool is as follows: in the initial state, the mandrel petals 2 are gathered together, the mandrel positioning columns formed by the mandrel positioning portions 22 of the mandrel petals 2 have a size smaller than the inner diameter of the circlip a, and the circlip a can be easily sleeved on the mandrel positioning columns; after the circlip a is sleeved in place, the mandrel petal outward moving assembly 3 drives the mandrel petals 2 to move in the opposite direction of the center of the mandrel hole 11, so that the mandrel positioning portions 22 of the mandrel petals 2 are in interference fit with the inner wall of the circlip a, and the mandrel limiting grooves 23 are formed between the adjacent mandrel positioning portions 22, which are used for positioning the corner limiting pieces and the torsion spring; then the gasket, the corner limiting piece, the torsion spring and the panel are sleeved on the expanded mandrel positioning columns, so that the circlip a is in a clamping state and the components are coaxially arranged on the mandrel positioning columns. In the drawings, the gasket, the corner limiting piece, the torsion spring and the like are not shown.

[0039] In the embodiment, the mandrel petal outward moving assembly 3 includes a mandrel petal outward moving force source 31, which controls the movement of the mandrel petals 2 along the center direction of the mandrel hole 11 through a synchronous transmission mechanism, which will be described below.

[0040] In the embodiment, the tool positioning seat 1 is provided with an outward moving channel 12, the mandrel petals 2 include mandrel limiting portions 24 movably connected in the outward moving channel 12, the synchronous transmission mechanism includes a plurality of outward moving connecting rods 32 rotatably connected to the tool positioning seat 1 through connecting rod pins 33, the linkage ends 321 of the outward moving connecting rods 32 are linked and connected with the mandrel limiting portions 24, the output end of the mandrel petal outward moving force source 31 is connected with a synchronous top plate 34, the synchronous top plate 34 moves towards the outward moving connecting rods 32 driven by the mandrel petal outward moving force source 31, and the synchronous top plate 34 is provided with a plurality of outward moving trigger pieces 35 linked and connected with the trigger ends 322 of the outward moving connecting rods 32.

[0041] In the embodiment, as shown in FIG. 4, the outward moving trigger pieces 35 are arranged in the form of a plurality of rows of outward moving trigger pieces 35 arranged in the same direction. Figure 1 to FIG. 4 Figure 8As shown, the outer moving channel 12 is provided with a core shaft petal reset member 21, one end of the core shaft petal reset member 21 abuts against the core shaft limiting portion 24, the other end of the core shaft petal reset member 21 abuts against the tool positioning seat 1, the core shaft limiting portion 24 is provided with a core shaft linkage groove 25, the linkage end 321 is connected in the core shaft linkage groove 25, the outer moving trigger member 35 comprises a trigger base 351 and a trigger roller 352 rotatably connected to the trigger base 351, the trigger end 322 is formed with a trigger inclined surface 323 on the side close to the trigger roller 352, and the trigger roller 352 is arranged opposite to the trigger inclined surface 322; the core shaft petal reset member 21 drives the core shaft petal 2 to move towards the center of the core shaft hole 11, when the core shaft petal outer moving force source 31 drives the synchronous top plate 34 to rise, the trigger roller 352 acts on the trigger inclined surface 322, so that the outer moving connecting rod 32 rotates around the connecting rod pin shaft 33, the linkage end 321 pushes the inner wall of the core shaft linkage groove 25, thereby driving the core shaft petal 2 to move away from the center of the core shaft hole 11. The core shaft limiting portion 24 is limited to move in the outer moving channel 12, thereby improving the stability of the core shaft petal 2 to expand and gather; the linkage end 321 is connected in the core shaft linkage groove 25, so that the outer moving connecting rod 32 and the core shaft petal 2 linkage response are more smooth and sensitive.

[0042] In the embodiment, the tool positioning seat 1 is provided with a torsion spring positioning member 4 and an elastic reset member 41, the torsion spring positioning member 4 comprises a torsion spring positioning portion 42 and a torsion spring reset portion 43, the torsion spring positioning portion 42 extends to the outside of the tool positioning seat 1, one end of the elastic reset member 41 abuts against the tool positioning seat 1, and the other end of the elastic reset member 41 abuts against the torsion spring reset portion 43; the torsion spring positioning portion 42 of the torsion spring positioning member 4 is used for positioning during torsion spring assembly.

[0043] In the embodiment, the tool positioning seat 1 is provided with a positioning member moving groove 13, the torsion spring positioning member 4 is connected in the positioning member moving groove 13, a positioning member limiting pin 14 is arranged in the positioning member moving groove 13, the torsion spring positioning member 4 is provided with a positioning member limiting hole 44, and the positioning member limiting pin 14 is connected in the positioning member limiting hole 44, thereby controlling the movement stroke of the torsion spring positioning member 4 on the tool positioning seat 1.

[0044] In the embodiment, the tool positioning seat 1 is connected with a handle positioning member 5 arranged in the core shaft hole 11, the handle positioning member 5 is located between the core shaft petals 2, a positioning through hole 51 is formed in the center of the handle positioning member 5, and a plurality of notches 52 are formed on the outer side of the end of the handle positioning member 5 away from the tool positioning seat 1.

[0045] In the embodiment, a pull-down assembly 6 is further included, which comprises a pull-down fixing plate 61, a pull-down guide column 62 connected to the pull-down fixing plate 61, a pull-down frame 63 movably connected to the pull-down guide column 62, and a pull-down power source 64 fixed to the pull-down fixing plate 61. The tool positioning seat 1 and the core shaft petal outward moving assembly 3 are both located on the pull-down frame 63. The pull-down power source 64 is connected with a pull-down ejector pin 65. The pull-down ejector pin 65 is provided with a nail head portion 651 at one end close to the handle positioning piece 5. The pull-down ejector pin 65 is connected in the positioning through hole 51. The size of the nail head portion 651 is larger than the hole diameter of the positioning through hole 51. When the pull-down power source 64 drives the pull-down ejector pin 65 to move, the pull-down frame 63 is driven to move downward, and the nail head portion 651 expands the end of the handle positioning piece 5, so that the handle connected to the handle positioning piece 5 is pulled down, and the final pressing action of the door handle is completed, and the snap spring, the gasket, the angular limiting piece, the torsional spring and the panel sleeve are arranged at the rotating shaft end of the handle.

[0046] In the embodiment, the pull-down guide column 62 is provided with a pull-down reset spring 66 for resetting the pull-down frame 63. The pull-down fixing plate 61 is provided with a pull-down limiting column 67 for limiting the moving stroke of the pull-down frame 63.

[0047] The door handle semi-automatic assembly positioning tool in the embodiment is provided with the movably connected core shaft petals 2. Before assembly, the core shaft petals 2 are in a gathered state, so that the snap spring can be easily sleeved without manual hard pressing, and the problems of inaccurate positioning and non-standard assembly posture caused by manual hard pressing are avoided. When the subsequent parts are assembled, the core shaft petals 2 are driven by the core shaft petal outward moving assembly 3 to separate from each other to form the core shaft limiting groove 23, so that the remaining parts can be placed on the core shaft positioning column according to the assembly angle, the requirement for assembly experience of product assembly personnel is reduced, the labor intensity of personnel is reduced, the assembly time is saved, and the assembly efficiency is improved.

[0048] The door handle semi-automatic assembly positioning tool in the embodiment adopts the core shaft petal outward moving assembly 3 to expand the core shaft petals 2, which improves the safety of production to a certain extent, reduces the occurrence of work accidents, is easy to maintain and adjust, and improves the flexibility and versatility of the equipment when the parts need to be replaced or adjusted.

[0049] Embodiment 2

[0050] The difference between the embodiment and the embodiment 1 is that the structure and cooperation mode of the outward moving connecting rod 32 and the outward moving trigger piece 35. As shown in FIGS. 2 and 3, the outward moving connecting rod 32 is provided with a first outward moving connecting rod 321 and a second outward moving connecting rod 322. The first outward moving connecting rod 321 is connected to the outward moving trigger piece 35. The second outward moving connecting rod 322 is connected to the outward moving guide column 31. Figure 12 to FIG. 3 Figure 14As shown, the core shaft limiting part 24 is provided with a core shaft linkage groove 25, and the linkage pin 26 is connected in the core shaft linkage groove 25. The linkage end 321 is provided with a connecting rod linkage groove 324, and the linkage pin 26 is connected in the connecting rod linkage groove 324. The outer moving trigger piece 35 includes a trigger base 351 and a trigger pin 353 connected to the trigger base 351. The trigger end 322 is provided with a trigger stroke groove 325, and the trigger pin 353 is connected in the trigger stroke groove 325. The core shaft petal outer moving force source 31 drives the synchronous top plate 34 to rise and fall. The trigger pin 353 moves along the trigger stroke groove 325, so that the outer moving connecting rod 32 rotates, thereby controlling the movement of the core shaft petal 2 to the center of the core shaft hole 11 in the opposite direction and to the center of the core shaft hole 11 in the direction. Compared with the scheme in Embodiment 1, this embodiment does not need to set the core shaft petal reset piece 21.

[0051] The other structures of this embodiment are the same as those of Embodiment 1, and will not be described again.

[0052] Embodiment 3

[0053] The difference between this embodiment and Embodiment 1 is the way in which the core shaft petal outer moving assembly 3 drives the core shaft petal 2 to move. As shown in the accompanying drawings, Figure 11 The core shaft petal outer moving assembly 3 includes a core shaft petal outer moving force source 31. The output end of the core shaft petal outer moving force source 31 is directly connected to the core shaft petal 2 to control the movement of the core shaft petal 2 in the direction of the center of the core shaft hole 11. Compared with Embodiments 1 and 2, this embodiment does not need to set a synchronous transmission mechanism.

[0054] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0055] It should also be noted that, in this specification, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.

[0056] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A door handle semi-automated assembly positioning fixture, characterized by, The device comprises a tool positioning seat and a core shaft petal outward moving assembly, the tool positioning seat is provided with a core shaft hole, a plurality of core shaft petals are movably connected to the tool positioning seat, the core shaft petals are annularly distributed around the core shaft hole, and the core shaft petals comprise core shaft positioning parts extending into the core shaft hole; the core shaft petal outward moving assembly is connected with the core shaft petals to make the core shaft petals reach a gathering posture or an opening posture, when the core shaft petals are in the gathering posture, the core shaft positioning column formed by the core shaft positioning parts has a size smaller than the inner diameter of a circlip, and when the core shaft petals are in the opening posture, the core shaft petals are separated from each other and the core shaft limiting grooves are formed between the adjacent core shaft positioning parts.

2. A door handle semi-automated assembly positioning fixture according to claim 1, wherein, The core shaft petal outward moving assembly comprises a core shaft petal outward moving force source, and the output end of the core shaft petal outward moving force source is directly connected with the core shaft petals to control the movement of the core shaft petals along the center direction of the core shaft hole, or the core shaft petal outward moving force source controls the movement of the core shaft petals along the center direction of the core shaft hole through a synchronous transmission mechanism.

3. A door handle semi-automated assembly positioning fixture according to claim 2, wherein, The tool positioning seat is provided with an outward moving channel, the core shaft petals comprise core shaft limiting parts movably connected to the outward moving channel, the synchronous transmission mechanism comprises a plurality of outward moving connecting rods, the outward moving connecting rods are rotatably connected to the tool positioning seat through connecting rod pins, the linkage ends of the outward moving connecting rods are connected with the core shaft limiting parts, the output end of the core shaft petal outward moving force source is connected with a synchronous top plate, the synchronous top plate is driven to move towards the outward moving connecting rods by the core shaft petal outward moving force source, the synchronous top plate is provided with a plurality of outward moving trigger pieces, and the outward moving trigger pieces are connected with the trigger ends of the outward moving connecting rods.

4. A door handle semi-automated assembly positioning fixture according to claim 3, wherein, The outward moving channel is provided with a core shaft petal resetting piece, one end of the core shaft petal resetting piece abuts against the core shaft limiting part, the other end of the core shaft petal resetting piece abuts against the tool positioning seat, the core shaft limiting part is provided with a core shaft linkage groove, the linkage end is connected to the core shaft linkage groove, the outward moving trigger piece comprises a trigger pedestal and a trigger roller rotatably connected to the trigger pedestal, the trigger end is formed with a trigger inclined surface on the side close to the trigger roller, and the trigger roller is arranged opposite to the trigger inclined surface.

5. A door handle semi-automated assembly positioning fixture according to claim 3, wherein, The core shaft limiting part is provided with a core shaft linkage groove, a linkage pin is connected to the core shaft linkage groove, the linkage end is provided with a connecting rod linkage groove, the linkage pin is connected to the connecting rod linkage groove, the outward moving trigger piece comprises a trigger pedestal and a trigger pin connected to the trigger pedestal, the trigger end is provided with a trigger stroke groove, and the trigger pin is connected to the trigger stroke groove.

6. A door handle semi-automated assembly positioning fixture according to any one of claims 1 to 5, wherein, The tool positioning seat is provided with a torsional spring positioning piece and an elastic resetting piece, the torsional spring positioning piece comprises a torsional spring positioning part and a torsional spring resetting part, the torsional spring positioning part extends to the outside of the tool positioning seat, one end of the elastic resetting piece abuts against the tool positioning seat, and the other end of the elastic resetting piece abuts against the torsional spring resetting part.

7. A door handle semi-automated assembly positioning fixture according to claim 6, wherein, The tool positioning seat is provided with a positioning member movable slot, the torsion spring positioning member is connected in the positioning member movable slot, a positioning member limiting pin is arranged in the positioning member movable slot, the torsion spring positioning member is provided with a positioning member limiting hole, and the positioning member limiting pin is connected in the positioning member limiting hole.

8. A door handle semi-automated assembly positioning fixture according to any one of claims 1 to 5, wherein, The tool positioning seat is connected with a handle positioning member arranged in the mandrel hole, the handle positioning member is located between the mandrel petals, a positioning through hole is formed in the center of the handle positioning member, and a plurality of notches are formed in the outer side of the end of the handle positioning member away from the tool positioning seat.

9. A door handle semi-automated assembly positioning fixture according to claim 8, wherein, Further comprising a pull-down assembly, the pull-down assembly comprises a pull-down fixed plate, a pull-down guide column connected to the pull-down fixed plate, a pull-down frame movably connected to the pull-down guide column, and a pull-down power source fixed to the pull-down fixed plate, the tool positioning seat and the mandrel petal outward moving assembly are located on the pull-down frame, a pull-down ejector pin is connected to the pull-down power source, a spike head is arranged on one end of the pull-down ejector pin close to the handle positioning member, the pull-down ejector pin is connected in the positioning through hole, and the size of the spike head is greater than the hole diameter of the positioning through hole.

10. A door handle semi-automated assembly positioning fixture according to claim 9, wherein, The pull-down guide column is provided with a pull-down reset spring for resetting the pull-down frame, and the pull-down fixed plate is provided with a pull-down limiting column for limiting the moving stroke of the pull-down frame.

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