Universal type handle automatic assembling equipment

Abstract

The utility model provides universal type handle automatic assembling equipment which comprises a rotary table mechanism, a handle assembling tool, a clamp spring feeding mechanism, a corner angle limiting piece feeding mechanism, a torsion spring feeding mechanism and a press-fitting mechanism, through the handle assembling tool, a shaft sleeve, a cover body, a gasket, a torsion spring, a corner angle limiting piece and a clamp spring which are slightly different in size can be sleeved into a core shaft piece, and the core shaft piece is pressed into the press-fitting mechanism. The handles of different sizes and shapes can be correspondingly inserted into the positioning columns of the handle assembling tool, a special tool does not need to be designed for each handle, the flexibility of the device is greatly improved, and the application range of the device is greatly widened.

Description

Technical Field

[0001] The utility model relates to the technical field of door lock handle assembly equipment, in particular to automatic assembly equipment for door handles with different handle handle shapes. Background Art

[0002] The handle is an indispensable part of the door panel, which is designed to facilitate the user to manually open and close the door. The handle design on the current market shows a variety of forms, especially the handle and panel design have their own characteristics, while the core components such as the retaining spring, the edge limiter, the torsion spring and the gasket tend to be standardized.

[0003] like Figure 1 , 2 As shown, the handle in the prior art generally includes a handle, a sleeve, a cover body, a gasket, a torsion spring, an angular limit plate and a retaining spring. The cover body includes a surface cover or an inner cover. The end of the handle has a cylindrical shaft end bent at 90 degrees. The middle of the shaft end is generally provided with a core shaft hole. A pair of limiting grooves are formed on both sides of the core shaft hole and along the radial direction of the shaft end. A limiting ring groove is arranged around the circumference of the shaft end on the side away from the handle. The inner side of the retaining spring is clamped in the limiting ring groove so that the outer side of the retaining spring can be used to stop and limit other parts. A through hole is penetrated in the middle of the cover body to match the clearance of the shaft end, and the cover A torsion spring limiting column is provided at one side of the through hole at the bottom of the body, and the two ends of the torsion spring respectively form an outer hook that is limited by the torsion spring limiting column and an inner hook that is limited in the limiting groove. The edge limiting plate is in the shape of an annular plate, and has a pair of ears extending outward along its circumference and a pair of clamping edges arranged on its inner annular surface and matched with the two limiting grooves. The two ears are placed on both sides of the torsion spring limiting column so that the torsion spring limiting column limits the circumferential rotation of the edge limiting plate. In addition, in order to facilitate the positioning of the cover body and prevent the cover body from twisting for easy assembly, the cover body usually also has limiting holes.

[0004] The traditional assembly process usually involves manually placing the handle on a special positioning tool, then gradually adding intermediate components and finally installing the retaining spring. The limitation of this assembly mode is that each handle with different shapes requires a customized matching positioning tool, which makes the tooling equipment not universal and difficult to adapt to the changing handle models.

[0005] In view of this, the present invention specially designed a universal handle automatic assembly device, and this case was thus generated. Utility Model Content

[0006] In order to solve the above problems, the technical solution of the utility model is as follows:

[0007] A universal handle automatic assembly device, comprising:

[0008] a frame, an upper end of which forms a mounting surface;

[0009] The turntable mechanism comprises a rotating surface arranged on the mounting surface and a rotating driving device for driving the rotating surface to cyclically transmit along a closed path at equal intervals, a plurality of tooling positions are arranged at intervals around the peripheral edge of the upper end of the rotating surface, and the rotating surface forms at least a clamping spring loading position, an angular limiting piece loading position, a torsion spring loading position and a press-fitting position around the peripheral edge thereof;

[0010] The handle assembly tooling is arranged on the tooling position in a one-to-one correspondence, including a tooling outer seat fixed to the rotating surface, a push shaft sleeve vertically inserted into the tooling outer seat, and a core shaft member slidably sleeved in the push shaft sleeve, a positioning column that can be matched with the core shaft hole at the handle shaft end is formed on the upper end of the core shaft member, and a group of pre-limiting grooves distributed vertically are symmetrically arranged on both sides of the core shaft member along its radial direction, and the shaft sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring can all be inserted into the core shaft member;

[0011] The circlip feeding mechanism is arranged at the circlip feeding position and is used to transfer the circlip to the core shaft of the handle assembly tooling when the tooling position moves to the circlip feeding position in sequence;

[0012] The edge and corner stopper feeding mechanism is arranged at the edge and corner stopper feeding position, and is used to transfer the edge and corner stopper to the core shaft of the handle assembly tooling when the tooling position moves to the edge and corner stopper feeding position in sequence;

[0013] The torsion spring feeding mechanism is arranged at the torsion spring feeding position and is used to transfer the torsion spring to the core shaft of the handle assembly tooling when the tooling position moves to the torsion spring feeding position in sequence;

[0014] The press-fitting mechanism is arranged at the press-fitting position, and includes a pressing mechanism for pressing the handle against the positioning column and a pushing mechanism for pushing the sleeve upward so that the sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring on the core shaft are transferred to the handle shaft end.

[0015] Preferably, the revolving surface is disc-shaped, and the closed path is a circular path;

[0016] Alternatively, the revolving surface is a rectangle, and the closed path is a rectangular path;

[0017] Alternatively, the revolving surface is waist-shaped, and the closed path is a waist-shaped path.

[0018] Preferably, the handle assembly tool further comprises:

[0019] A limiter, arranged in the tooling outer seat, is used to limit the vertical sliding of the mandrel and the push sleeve so that the mandrel and the push sleeve form a lowest position and a highest position;

[0020] The elastic member is arranged in the tooling outer seat and is used for elastically contacting the push sleeve so that the push sleeve has a tendency to maintain the lowest position and elastically contacting the core shaft member so that the core shaft member has a tendency to maintain the highest position.

[0021] Preferably, the retaining spring feeding mechanism includes a retaining spring bin, a retaining spring pushing device for transferring the retaining spring at the lower end of the retaining spring bin to the top of the nearest handle assembly tooling, a retaining spring finger cylinder for clamping and stretching the retaining spring, and a first cylinder assembly for driving the retaining spring finger cylinder to move vertically, and the retaining spring finger cylinder is arranged directly above the circulation trajectory of the handle assembly tooling.

[0022] Preferably, the corner limiter feeding mechanism includes a first feeding rail, a first flipping mechanism arranged at the exit side of the first feeding rail and used to grab the corner limiter at the end of the first feeding rail, a clamping finger cylinder for clamping the corner limiter whose orientation has been corrected by the first flipping mechanism, and a second cylinder assembly for driving the clamping finger cylinder to reciprocate between the handle assembly tooling and the first feeding rail. The first flipping mechanism is used to judge the orientation of the corner limiter to determine whether to perform a flip correction.

[0023] Preferably, the torsion spring feeding mechanism includes a second feeding rail, a second flipping mechanism arranged at the exit side of the second feeding rail and used to grab the torsion spring at the end of the second feeding rail, a torsion spring finger cylinder for clamping the torsion spring whose direction has been corrected by the second flipping mechanism, a torsion spring pre-tensioning device arranged between the second feeding rail and the handle assembly tooling, a torsion spring removing device for removing the torsion spring that has been pre-tensioned by the torsion spring pre-tensioning device, and a third cylinder assembly for synchronously driving the torsion spring finger cylinder and the torsion spring removing device to reciprocate between the second feeding rail and the torsion spring pre-tensioning device and between the torsion spring pre-tensioning device and the handle assembly tooling, wherein the second flipping mechanism is used to pick up the torsion spring and judge its direction to determine whether to perform flipping correction.

[0024] Preferably, it also includes a cover loading position, on which a cover loading mechanism is provided, the cover loading mechanism includes a cover conveying device and a cover loading device, and the cover loading device is used to transfer the cover on the cover conveying device to the core shaft part of the handle assembly tooling at the corresponding position.

[0025] Preferably, it also includes a handle loading position which is arranged in sequence before the press-fitting position, the handle loading position is provided with a handle loading mechanism, the handle loading mechanism includes a handle circulation component and a handle loading device, the handle circulation component is provided with a handle positioning structure for positioning the handle shaft end, and the handle loading device is used to transfer the handle along the handle circulation component to the positioning column of the handle assembly tooling.

[0026] Preferably, it further comprises at least one gasket loading position, on which a gasket loading mechanism is provided, and the gasket loading mechanism comprises a gasket silo and a gasket transfer device for transferring a single gasket to a core shaft member closest to the tooling position.

[0027] Preferably, it also includes a material unloading position sequentially arranged after the press-fitting position, and a material unloading mechanism is provided on the material unloading position, and the material unloading mechanism includes a material unloading conveyor belt and a handle unloading device for transferring a handle that has been press-fitted and is located on a handle assembly tooling after the press-fitting position to the material unloading conveyor belt.

[0028] The beneficial effects of the utility model are as follows:

[0029] By adopting modular design and flexible tooling layout, the automated assembly of handles of different styles can be achieved, which significantly improves production efficiency and assembly accuracy, while reducing the cost and time loss caused by frequent tooling changes.

[0030] Specifically:

[0031] Through the handle assembly tooling, slightly different-sized shaft sleeves, covers, gaskets, torsion springs, edge limiters and retaining rings can be inserted into the mandrel parts, and handles of different sizes and shapes can be inserted into the positioning columns of the handle assembly tooling accordingly. There is no need to design special tooling for each handle, which greatly enhances the flexibility and application range of the equipment;

[0032] The equipment integrates multiple feeding devices such as the clip feeding mechanism, the edge limiter feeding mechanism, the torsion spring feeding mechanism, etc. It can automatically complete the feeding and preliminary assembly of various components during the cyclic movement of the tooling position, reducing manual intervention and improving production efficiency.

[0033] The synergistic effect of the pressing mechanism and the lifting mechanism ensures the precise alignment and firm press-fitting of the handle and other components, avoiding the deviation and instability that may occur during manual operation and ensuring the assembly quality.

[0034] In summary, the utility model not only solves the versatility and efficiency problems in the traditional manual assembly mode, but also greatly improves the automation level and product quality of handle production through highly integrated and intelligent design, providing a more efficient, flexible and intelligent solution for handle assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0036] in:

[0037] Figure 1 It is a schematic diagram of the exploded structure of a handle in the prior art;

[0038] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0039] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0040] Figure 4 It is a three-dimensional structural schematic diagram of the handle assembly tooling in the utility model;

[0041] Figure 5 It is a cross-sectional structural schematic diagram of the handle assembly tooling in the utility model;

[0042] Figure 6 It is a schematic diagram of a partial explosion structure highlighting the core shaft and the push sleeve in the utility model;

[0043] Figure 7 It is a schematic diagram of the local structure between the clip spring feeding mechanism and the rotary surface in the utility model;

[0044] Figure 8 It is a schematic diagram of the partial structure between the feeding mechanism of the edge and corner limiting piece and the rotating surface in the utility model;

[0045] Fig. 9 It is a schematic diagram of the local structure between the torsion spring feeding mechanism and the rotary surface in the utility model;

[0046] Fig.10 It is a partial structural schematic diagram of the torsion spring removal device in the utility model;

[0047] Fig.11 This is a schematic diagram of the partial structure between the press-fit mechanism and the rotary surface in the utility model.

[0048] Fig.12 It is a schematic diagram of the partial structure between the inner cover feeding mechanism and the rotary surface in the utility model;

[0049] Fig.13 It is a schematic diagram of the local structure between the handle feeding mechanism and the rotary surface in the utility model;

[0050] Fig.14 It is a schematic diagram of the local structure between the gasket feeding mechanism and the rotary surface in the utility model;

[0051] Fig.15 It is a schematic diagram of the local structure between the feeding mechanism and the rotary surface in the utility model.

[0052] Description of labels:

[0053] 10. Handle; 11. Handle; 111. Rotating shaft end; 112. Mandrel hole; 113. Limiting groove; 114. Limiting ring groove; 12. Bushing; 13. Cover; 131. Through hole; 132. Torsion spring limiting column; 133. Limiting hole position; 14. Gasket; 15. Torsion spring; 151. Outer hook; 152. Inner hook; 16. Angular limiting piece; 161. Ear piece; 162. Clamp edge; 17. Circlip; 171. Hole position; 20. Turntable mechanism; 21. Rotating surface; 22. Rotating drive device; 23. Frame; 231. Mounting surface; 24. Fixing plate; 30. Handle assembly tooling; 31. Tooling outer seat; 311. Mounting hole; 312. Pin hole; 313. Reset hole; 32. Pushing sleeve; 321. Nesting hole ;322, second limiting hole;323, limiting surface;33, core shaft member;331, positioning column;332, pre-limiting groove;333, first limiting hole;34, limiting member;35, elastic member;36, cover body sleeve;361, positioning rod;362, assembly groove;363, installation channel;364, torsion spring overlap structure;3641, limiting edge;365, sliding hole;37, second spring;40, retaining spring feeding mechanism;41, retaining spring bin;42, retaining spring pushing device;421, first bracket;422, first guide rail;423, retaining spring pushing plate;424, retaining spring pushing cylinder;425, retaining spring groove;43, retaining spring finger cylinder;44, first cylinder assembly;441, second bracket;442, first mounting plate; 443, first driving cylinder; 444, second driving cylinder; 445, second mounting plate; 50, edge limiter feeding mechanism; 51, first feeding track; 52, first flipping mechanism; 521, third bracket; 522, third driving cylinder; 523, first rotating finger cylinder; 53, block finger cylinder; 54, second cylinder assembly; 541, fourth bracket; 542, third mounting plate; 543, third guide rail; 544, fourth driving cylinder; 545, fourth mounting plate; 546, fifth driving cylinder; 547, fifth mounting plate; 548, first rotating cylinder; 60, torsion spring feeding mechanism; 61, second feeding track; 62, second flipping mechanism; 621, horizontal push cylinder; 63, torsion spring finger cylinder; 64 , torsion spring preload device; 641, preload motor; 642, preload block; 643, annular positioning groove; 644, snap-in groove; 645, snap-in portion; 646, ejection hole; 647, ejection cylinder; 648, ejector rod; 65, torsion spring removal device; 651, removal end; 652, ejection structure; 653, second ejection cylinder; 654, matching hole; 655, snap-in groove; 656, matching column; 66, third cylinder assembly; 661, fifth bracket; 662, fifth mounting plate; 663, fifth guide rail; 664, sixth mounting plate; 665, seventh mounting plate; 666, sixth drive cylinder; 667, seventh drive cylinder; 668, eighth drive cylinder; 669, second rotary cylinder; 70, cover feeding mechanism;71, cover conveying device; 711, rotary unit plate; 712, rectangular rotary channel; 713, push cylinder; 72, cover feeding device; 721, sixth bracket; 722, eighth mounting plate; 7221, notch; 723, ninth mounting plate; 724, ninth driving cylinder; 725, tenth driving cylinder; 726, cover finger cylinder; 80, handle feeding mechanism; 81, handle circulation assembly; 811, second conveying surface; 812, handle positioning structure; 813, second circulation driving device; 82, handle feeding device; 821, handle hand Finger cylinder; 822, second fixed frame; 823, horizontal moving cylinder; 824, vertical moving cylinder; 825, clamping part; 90, pressing mechanism; 91, pressing mechanism; 92, lifting mechanism; 93, first fixed frame; 931, horizontal frame; 94, flexible pressing block; 100, unloading mechanism; 1001, unloading conveyor belt; 1002, handle unloading device; 1003, three-finger cylinder; 110, gasket loading mechanism; 1101, gasket silo; 1102, gasket transfer device; 1103, fifth cylinder assembly; 1104, suction sleeve. ; DETAILED DESCRIPTION

[0054] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] In the prior art, such as Figure 1 As shown, the handle generally includes a handle, a sleeve, a cover body, a gasket, a torsion spring, an angular limit plate and a retaining spring. The cover body includes a surface cover or an inner cover. The handle end has a cylindrical shaft end bent at 90 degrees. A core shaft hole is opened in the middle of the shaft end. A pair of U-shaped opening limiting grooves are formed on both sides of the core shaft hole and along the radial direction of the shaft end. A limiting ring groove is arranged around the circumference of the shaft end on the side away from the handle. The inner side of the retaining spring is stuck in the limiting ring groove so that the outer side of the retaining spring can be used to stop and limit other parts. A through hole is penetrated in the middle of the cover body to match the clearance of the shaft end. The body usually also has a limiting hole to position the cover body to prevent twisting, and a torsion spring limiting column is provided at the inner bottom of the cover body on one side of the through hole. The two ends of the torsion spring respectively form an outer hook that is limited by the torsion spring limiting column and an inner hook that can be limited in the limiting groove. The edge limiting piece is in the shape of an annular piece, and has a pair of ears extending outward and a pair of clamping edges arranged on its inner annular surface and matched with the two limiting grooves. The two ears are placed on both sides of the torsion spring limiting column so that the torsion spring limiting column limits the circumferential rotation of the edge limiting piece. There is a pair of holes on both sides of the retaining spring opening.

[0056] See also Figures 3 to 15, is a universal handle automatic assembly device as the best embodiment of the utility model,

[0057] It includes a frame, and the upper end of the frame forms a mounting surface;

[0058] It also includes a turntable mechanism, including a rotating surface arranged on the mounting surface and a rotating drive device for driving the rotating surface to equidistantly cyclically transmit along a closed path. A plurality of tooling positions are arranged at intervals around the upper end of the rotating surface and around its peripheral edge. The rotating surface forms at least a retaining spring loading position, an edge limit block loading position, a torsion spring loading position and a press-fitting position around its peripheral side.

[0059] Specifically, in this embodiment, the revolving surface is disc-shaped, the closed path is a circular path, and the tooling positions are evenly distributed along the circumference of the revolving surface.

[0060] Among them, the turntable mechanism is arranged as a whole on the upper end mounting surface of a frame, and the rotary drive device includes a drive motor (not marked in the figure). The drive motor is connected to a divider that can divide the continuous transmission of the drive motor into intermittent transmission through a transmission combination, such as a sprocket chain, a synchronous belt, etc., such as a cam divider. The divider has an output end that intermittently drives the rotating surface to rotate circumferentially. Therefore, by dividing the drive motor transmission through the divider, equidistant cyclic transmission of the tooling position on the rotating surface can be achieved.

[0061] In addition, in this embodiment, in order to cooperate with the installation and fixation of other mechanisms, a coaxial fixing plate is provided on the upper end of the rotating surface. The fixing plate is fixed relative to the installation surface, and the rotating surface is rotatable relative to the installation surface.

[0062] It also includes a handle assembly tool, which is arranged on the tool position in a one-to-one correspondence, including a tool outer seat fixed to the rotating surface, a push shaft sleeve vertically inserted into the tool outer seat, and a core shaft member slidably sleeved in the push shaft sleeve, a positioning column that can be matched with the core shaft hole at the handle shaft end is formed at the upper end of the core shaft member, and a group of pre-limiting grooves distributed vertically are symmetrically arranged on both sides of the core shaft member along the radial direction, and the shaft sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring can be inserted into the core shaft member;

[0063] Specifically, Figure 4-6 As shown, the handle assembly tooling also includes:

[0064] A limiter, arranged in the tooling outer seat, is used to limit the vertical sliding of the mandrel and the push sleeve so that the mandrel and the push sleeve form a lowest position and a highest position;

[0065] The elastic member is arranged in the tooling outer seat and is used for elastically contacting the push sleeve so that the push sleeve has a tendency to maintain the lowest position and elastically contacting the core shaft member so that the core shaft member has a tendency to maintain the highest position.

[0066] Among them, a circular mounting hole is vertically penetrated through the outer seat of the tooling, the push sleeve is clearance-matched with the mounting hole, a nesting hole with a circular cross-section is vertically penetrated through the middle of the push sleeve, the core shaft part is clearance-matched with the nesting hole, and at least a part of the core shaft part is clearance-matched with the mounting hole. In this embodiment, the upper end of the core shaft part is cylindrical, and the middle and lower ends are cylindrical or polygonal. In this embodiment, the lower end is cylindrical.

[0067] A group of U-shaped pre-limiting grooves distributed vertically are symmetrically arranged on both sides of the core shaft member along its radial direction, and the openings of the two pre-limiting grooves are far away from each other. Among them, the positioning column is a square column so as to form a shape that fits with the core shaft hole at the end of the handle, so that the handle is inserted into the positioning column for fixation, and when the handle is inserted, the limiting grooves on both sides of its rotating shaft end are relative to the pre-limiting grooves and are adapted in size and shape, so that the torsion spring and the edge limiting piece limited by the pre-limiting groove are transferred to the rotating shaft end of the handle in the same posture and are limited by the limiting groove in turn. The process is as follows: the inner hook of the torsion spring and the clamping edge of the edge limiting piece follow the torsion spring and the edge limiting piece, and are smoothly pushed into the limiting groove opposite to the pre-limiting groove along the pre-limiting groove under the push of the pushing sleeve, thereby realizing convenient transfer and assembly of the torsion spring and the edge limiting piece.

[0068] In addition, in order to ensure that accessories such as the sleeve, cover, gasket, torsion spring, edge limit plate and retaining spring are smoothly transferred from the core shaft to the shaft end on the handle, the outer diameter of the core shaft is set to be greater than or equal to the outer diameter of the shaft end.

[0069] The limiting function of the limiting component is realized as follows:

[0070] The spindle member is provided with a first limiting hole which passes horizontally through it radially and is linear in the vertical direction, and the nesting hole is provided with second limiting holes which pass through the mounting hole along the inner walls on both sides opposite to the radial direction, and the second limiting holes are linearly parallel to and opposite to the first limiting holes in the vertical direction, and the limiting member is a rod-shaped connecting pin, and the connecting pin passes through the push sleeve and the second limiting hole and the first limiting hole of the spindle member in sequence so that the push sleeve and the spindle member have a minimum position and a maximum position for vertical movement. Specifically, a pin hole passing through the mounting hole is passed through the two side walls of the tooling outer seat, the push sleeve is inserted into the lower end of the mounting hole of the tooling outer seat from bottom to top, and the spindle member is inserted into the upper end of the mounting hole from top to bottom and nested in the nesting hole of the push sleeve, and the spindle member and the push shaft are rotated. The sleeve makes the first limiting hole and the second limiting hole remain aligned in the vertical direction and makes the connecting line of the two ends of the pin shaft hole just pass through the first limiting hole and the second limiting hole. At this time, the connecting pin is inserted into one end of the pin shaft hole, so that the connecting pin is inserted into the pushing sleeve and the first limiting hole and the second limiting hole of the core shaft member in turn, and finally passes through the other end of the pin shaft hole. At this time, under the limitation of the limiting member, the vertical movable distance of the core shaft member is maintained within the vertical extension distance of the first limiting hole, and the vertical movable distance of the pushing sleeve is maintained within the vertical extension distance of the second limiting hole, thereby forming the lowest position and the highest position of the pushing sleeve and the core shaft member in the vertical upward and downward movement. In this embodiment, when the core shaft member is in the highest position, it protrudes from the upper end surface of the tooling outer seat.

[0071] The handle assembly tooling also includes an elastic part, which is a first spring, which pushes the sleeve and forms an annular limiting surface at the bottom of the nesting hole. The bottom of the first spring movably contacts the limiting surface, and the top of the first spring movably contacts the bottom of the core shaft. Therefore, the first spring can generate a downward elastic force on the push sleeve and an upward elastic force on the core shaft through the ends on both sides thereof. Through the cooperation of the first spring and the connecting pin, the core shaft is pushed upward and maintained at its highest position protruding from the outer seat of the tooling, and the push sleeve is pushed downward and maintained at its lowest position.

[0072] The arrangement of the above-mentioned elastic part, limiting part, first limiting hole and second limiting hole enables a nested structure to be formed between the push sleeve and the core shaft part, and an integrated elastic support structure to be formed relative to the outer seat of the tooling. When the handle is assembled, the handle handle is generally pressed down by external pressure, and the push sleeve is generally pushed up by external pressure. Therefore, after the shaft end is embedded in the positioning column, the elastic support structure formed between the core shaft part, the limiting part and the first spring allows the handle to continue to be pressed down, thereby achieving elastic contact between the handle and the tooling and avoiding damage to the handle or the tooling caused by hard pressure. In addition, by pushing the elastic support structure formed between the sleeve, the limiting part and the first spring, the push sleeve can automatically reset after pushing the components into the shaft end of the handle. The above-mentioned structure makes the tooling more flexible and suitable for the assembly of various types of handles.

[0073] The handle assembly tooling also includes a positioning rod, which is relative to the limiting hole on the cover body to position and orient the cover body on the tooling outer seat. The upper end surface of the tooling outer seat is provided with a cover body sleeve with the mounting hole as the center. The positioning rod is a columnar positioning rod protruding from the uppermost end of the cover body sleeve. A positioning portion (not marked in the figure) that can adapt to the shape of the opening at the lower end of the cover body is formed on the top of the cover body sleeve. In this embodiment, the cover body sleeve is cylindrical as a whole, so it can be suitable for the assembly of handles with a circular cover body. When the cover body passes through the core shaft part, the limiting hole on the cover body is aligned with the positioning rod for limiting, thereby limiting the cover body to the cover body sleeve to prevent it from twisting. The above operation is to make the torsion spring limiting column at the bottom of the cover body remain relative to the torsion spring overlap structure, so that the outer hook of the torsion spring is pushed up with the torsion spring, so that it smoothly transitions to the torsion spring limiting column at the bottom of the cover body, completing the assembly of the torsion spring without the need for additional torsional assembly of the torsion spring.

[0074] Alternatively, the positioning structure may also be changed according to the corresponding structure of the bottom of the cover body, such as: a protrusion or a groove is set at the bottom of the cover body, and the positioning structure is correspondingly set as a groove or a protrusion, which is not limited here.

[0075] The top of the cover sleeve is concave to form a circular assembly groove concentric with the mounting hole. The lowest position of the push sleeve is not higher than the bottom surface of the assembly groove. The cover sleeve is radially penetrated by an installation channel for facilitating the placement of parts and making way for various mechanisms. The installation channel is connected to the assembly groove and its bottom extends below the bottom surface of the assembly groove.

[0076] In this embodiment, the bottom of the installation channel passes through to the upper end surface of the tooling outer base.

[0077] like Figure 4-6 As shown, a torsion spring overlap structure is provided in the assembly groove, and the torsion spring overlap structure is opposite to the torsion spring limiting column at the bottom of the cover body after positioning. The torsion spring overlap structure is rod-shaped or block-shaped. The shape of the torsion spring overlap structure is set to facilitate the overlap of the outer hook on the outside of the torsion spring, so as to cooperate with the pre-limiting groove to maintain the compressed state of the torsion spring, and to facilitate pushing the torsion spring maintained in the compressed state into the cover body of the handle to complete the integrated assembly of the torsion spring.

[0078] Specifically, in the present embodiment, the torsion spring lap structure is arranged in a rod shape, and an annular limiting edge formed by outward expansion is formed at its end, a reset hole is integrally arranged along the top end to penetrate to its bottom surface, a sliding hole corresponding to the reset hole is arranged on the cover body sleeve, the sliding hole and the torsion spring lap structure are clearance matched, the reset hole and the limiting edge are clearance matched, a second spring is sleeved on the lower end surface of the limiting edge and located on the outer peripheral side of the torsion spring lap structure, so that when the tooling outer seat is installed on the corresponding mounting surface, the mounting surface forms the bottom supporting surface of the second spring, so as to realize the effect of pushing the limiting edge up, and at this time, the torsion spring lap structure rises with the limiting edge and is at the lowest position. The torsion spring is in a high position, and the outer hook of the torsion spring in a compressed state is overlapped on the side wall of the torsion spring overlap structure through external equipment or workers, and the inner hook is inserted into the pre-limiting groove of the core shaft, so that the torsion spring maintains a twisted and compressed state on the tooling, and the torsion spring limiting column on the cover body is opposite to the torsion spring overlap structure in the assembly groove. When the handle of the handle continues to be pressed down, the torsion spring limiting column presses the torsion spring overlap structure down to retract it into the sliding hole and the reset hole, and cooperates with the upward action of pushing the sleeve to smoothly transition the torsion spring maintained in a compressed state to the cover body. At this time, the outer hook of the torsion spring smoothly transitions to the torsion spring limiting column, and the inner hook of the torsion spring transitions to the limiting groove at the end of the handle.

[0079] In addition, the automatic assembly equipment also includes:

[0080] The circlip feeding mechanism is arranged at the circlip feeding position and is used to transfer the circlip to the core shaft of the handle assembly tooling when the tooling position moves to the circlip feeding position in sequence;

[0081] Specifically, the retaining spring feeding mechanism includes a retaining spring bin, a retaining spring pushing device for transferring the retaining spring at the lower end of the retaining spring bin to the top of the nearest handle assembly tooling, a retaining spring finger cylinder for clamping and stretching the retaining spring, and a first cylinder assembly for driving the retaining spring finger cylinder to move vertically. The retaining spring finger cylinder is arranged directly above the circulation trajectory of the handle assembly tooling. In this embodiment, the retaining spring is fed by a vibration plate and a track vibration. The retaining spring bin is a cylindrical positioning rod portion that is embedded in the hollow area inside the retaining spring, and one side of the retaining spring is provided with a protrusion for locating the retaining spring opening. The retaining spring pushing device includes a first bracket arranged on the mounting surface and located on one side of the rotating surface, a first guide rail arranged on the first bracket, a retaining spring pushing plate slidably arranged on the first guide rail, and a retaining spring pushing cylinder. The output end of the retaining spring pushing cylinder is fixed The retaining spring push plate is used to drive it to slide along the first guide rail, and the first guide rail is arranged in a direction radially overlapping with the rotating surface. The bottom of the retaining spring bin extends to the upper end surface of the retaining spring push plate and is in active contact with it. Therefore, under normal circumstances, a number of retaining springs are stacked on the retaining spring bin, and the retaining spring at the lower end is in active contact with the upper end surface of the retaining spring push plate. A retaining spring groove adapted to the shape of the retaining spring is provided on the upper end surface of the retaining spring push plate and at one end close to the rotating surface. Space is reserved in the retaining spring groove for the retaining spring to be stretched. When the retaining spring push plate is retracted with the retaining spring push cylinder, the retaining spring groove is opposite to the position of the retaining spring bin, so that the retaining spring at the lower end falls into the retaining spring groove, and when the retaining spring push plate is pushed out with the retaining spring push cylinder, it is pushed just above the handle assembly tooling on the rotating surface opposite to the upper material position of the retaining spring, for subsequent removal.

[0082] Among them, the spring finger cylinder is a clamping claw cylinder, which has a main body and a pair of clamping claws. A pair of parallel positioning pins (not shown in the figure) extend downward from the bottom of the two clamping claws, and the positioning pins are opposite to the holes on both sides of the spring opening. The first cylinder assembly includes a second bracket fixed on the upper edge of the fixed plate close to the upper material level of the spring and in the same straight line with the first guide rail, a second guide rail (not shown in the figure) vertically arranged along the second bracket, a first mounting plate and a second mounting plate slidably arranged on the second guide rail, a first driving cylinder arranged at the upper end of the second bracket and used to drive the first mounting plate to extend and retract vertically, and a second driving cylinder fixed on the first mounting plate, the output end of the second driving cylinder is fixed to the second mounting plate to realize the vertical extension and retraction of the second mounting plate, the main body of the spring finger cylinder is vertically fixed on the second mounting plate so that its clamping claw part extends horizontally to just above the tooling position, so that when the spring When it falls into the retaining spring groove and is pushed to the top of the handle assembly tooling, the clamping claw of the retaining spring finger cylinder is located above the retaining spring groove, and the second driving cylinder extends out, and passes through the positioning pins on the clamping claws of the retaining spring finger cylinder into the holes on both sides of the retaining spring opening, and then slightly opens the two clamping claws, so that the opening of the retaining spring is in an expanded state. At this time, the retaining spring is driven to move upward by retracting the second driving cylinder, and the retaining spring pushing plate is retracted to make space to avoid affecting the downward movement of the retaining spring. Then the first driving cylinder is controlled to extend, so that the first mounting plate and the second mounting plate are moved downward synchronously. At this time, the retaining spring fixed by the retaining spring finger cylinder is transferred to the top of the handle assembly tooling directly below it, and the middle hollow area of ​​the retaining spring is just opposite to the positioning column and the core shaft part. The second driving cylinder is controlled to extend again to place the retaining spring on the core shaft part directly below it. At this time, since the retaining spring is in an expanded state, it can be smoothly clamped into the positioning column and the core shaft part, completing the pre-installation process of the retaining spring.

[0083] It also includes an edge and corner stopper feeding mechanism, which is arranged at the edge and corner stopper feeding position and is used to transfer the edge and corner stopper to the core shaft of the handle assembly tooling when the tooling position moves to the edge and corner stopper feeding position in sequence;

[0084] Specifically, the feeding mechanism of the corner limit piece includes a first feeding track, a first flipping mechanism arranged at the exit side of the first feeding track and used to grab the corner limit piece at the end of the first feeding track, a clamping block finger cylinder for clamping the corner limit piece whose direction is corrected by the first flipping mechanism, and a second cylinder assembly for driving the clamping block finger cylinder to reciprocate between the handle assembly tooling and the first feeding track. The first flipping mechanism is used to judge the direction of the corner limit block to determine whether to perform flip correction, that is, a recognition module or a visual module can be set to judge the direction of the corner limit piece. The corner limit piece is connected to the first feeding track through a vibration disk to vibrate and feed. The corner limit piece is grabbed at the end of the first feeding track, which is the grabbing position of the corner limit piece. The first flipping mechanism includes a third bracket fixed on the mounting surface, a third driving cylinder arranged on the top of the third bracket and extending vertically, and a third driving cylinder output The first rotating finger cylinder on the end, the first rotating finger cylinder has a pair of claws (not shown in the figure), and the inner sides of the two claws are opposite to each other to form claw grooves (not shown in the figure) that are engaged with the ears on both sides of the edge limit plate. Therefore, when the edge limit plate moves to the grasping position along the first feeding track, the third driving cylinder retracts, so that the two claws of the first rotating finger cylinder move to both sides of the grasping position. At this time, the two claws are in an open state, and the claws are controlled to close so that the ears on both sides of the edge limit plate are stuck in the claw grooves. The third driving cylinder extends out to lift the edge limit plate upward. At this time, both sides of the main body of the edge limit plate are in a suspended state, which is convenient for subsequent movement. During the feeding process of the vibration plate, only the conveying posture of the edge limit plate on the first feeding track can be maintained, and its direction cannot be corrected. Therefore, in combination with an additional visual detection mechanism, the direction of the edge limit plate can be corrected by rotating and turning the first rotating finger cylinder.

[0085] Among them, the block finger cylinder has a pair of clamping claws (not shown in the figure), and the inner sides of the two clamping claws are opposite to each other to form alignment grooves (not shown in the figure) adapted to the two sides of the edge limit plate. The second cylinder assembly includes a fourth bracket arranged on the mounting surface and located on one side of the first feeding track. A third mounting plate extends horizontally from the top of the fourth bracket toward the rotating surface. The third mounting plate is provided with a third guide rail along its extension direction and a fourth driving cylinder is provided on the side away from the rotating surface. A fourth mounting plate is slidably arranged on the third guide rail. The output end of the fourth driving cylinder is fixed to the fourth mounting plate and also drives it toward The fourth mounting plate is provided with a fifth driving cylinder which is telescopically extended in the vertical direction, a fourth guide rail (not shown in the figure) distributed vertically and a fifth mounting plate which slides on the fourth guide rail and is fixed to the output end of the fifth driving cylinder, and the fifth mounting plate extends a fixed edge (not shown in the figure) vertically outwardly from the fifth mounting plate, and a first rotating cylinder is provided at the lower end of the fixed edge, and the output end of the first rotating cylinder is located at the lower end and the clamping finger cylinder is fixed on the output end thereof, so that when the angle limit piece is clamped above the first feeding track, the fifth driving cylinder The moving cylinder extends so that the fifth mounting plate drives the first rotating cylinder and the block finger cylinder to move to the position of the aforementioned edge limit plate, the block finger cylinder closes so that the two sides of the edge limit plate are clamped into the alignment grooves on both sides of the clamping claw, the clamping claw of the first rotating finger cylinder is released, and the third driving cylinder controls it to retract to make way, the fifth driving cylinder retracts, so that the edge limit plate rises, and the fourth driving cylinder extends, and drives the first rotating cylinder and the block finger cylinder to move to the top of the handle assembly tooling closest to the rotating surface through the fourth mounting plate. At this time, the hollow area in the middle of the edge limit plate The domain is relative to the positioning column and the core shaft part, the first rotating cylinder rotates a corresponding angle to make the torsion spring overlap structure align with the area between the two ears on the edge limit plate and to make the two clamping edges on the inner side of the edge limit plate align with the two pre-limiting grooves on both sides of the core shaft part, and then the fifth driving cylinder extends out again, so that the edge limit plate is accurately clamped on the core shaft part. At this time, the torsion spring overlap structure is located between the two ears of the edge limit plate, and the clamping edges on the inner side of the edge limit plate are clamped into the pre-limiting grooves on both sides of the core shaft part, and finally the clamping block finger cylinder is disengaged and restored to its original position, completing the pre-installation process of the edge limit plate.

[0086] In particular, the first rotating cylinder is provided to correct the orientation of the corner limit plate. In some embodiments, the orientation of the first loading track of the corner limit plate can also be adjusted so that the orientation of the corner limit plate just fits the orientation on the handle assembly tooling. In this case, it can be achieved without setting the first rotating cylinder, and no limitation is made here.

[0087] It also includes a torsion spring feeding mechanism, which is arranged at the torsion spring feeding position and is used to transfer the torsion spring to the core shaft of the handle assembly tooling when the tooling position moves to the torsion spring feeding position in sequence;

[0088] The second turning mechanism is used to pick up the torsion spring and judge its direction to decide whether to turn it over, and then set the torsion spring finger cylinder to identify the torsion spring. The direction is judged, the second feeding track is connected to a vibration plate to realize automatic feeding of the torsion spring. During the vibration feeding process, the torsion spring can only maintain the conveying posture of the retaining spring on the second feeding track, and its direction cannot be corrected. Therefore, it is necessary to add a corresponding correction device. The first is the second flipping mechanism. The structure of the second flipping mechanism is similar to that of the first flipping mechanism. The difference is that the second flipping mechanism is arranged on the end side of the second feeding track, and a horizontal pushing cylinder is added on the basis of the first flipping mechanism to realize the action of the rotating finger cylinder in the first flipping mechanism approaching or moving away from the end of the second feeding track. Therefore, through the structure of the first flipping mechanism, the clamping and direction correction of the torsion spring can be realized, so as to facilitate the subsequent transfer.

[0089] Among them, the third cylinder assembly includes a fifth bracket fixed on the mounting surface and located on the other side of the second feeding track relative to the second turning mechanism, a fifth mounting plate extends horizontally toward the rotating surface from the top of the fifth bracket, a fifth guide rail is provided on the front side of the fifth mounting plate, a group of sixth mounting plates and seventh mounting plates are slidably arranged on the fifth guide rail, a sixth driving cylinder is provided on one side of the fifth guide rail to realize the synchronous movement of the sixth mounting plate and the seventh mounting plate on the fifth guide rail, the sixth mounting plate and the seventh mounting plate are respectively provided with a seventh driving cylinder and an eighth driving cylinder which are vertically retractable, and the output ends of the seventh driving cylinder and the eighth driving cylinder are respectively fixed with the second rotating cylinder and the aforementioned torsion spring removal device The torsion spring finger cylinder is fixed on the output end of the lower end of the second rotating cylinder, a torsion spring pre-tightening device is arranged between the second feeding track and the handle assembly tooling, the torsion spring pre-tightening device comprises a pre-tightening motor, a pre-tightening block is arranged on the output end of the pre-tightening motor, the upper end of the pre-tightening block is concave to form an annular positioning groove adapted to the torsion spring, a clamping groove distributed along its radial direction is formed in the middle of the pre-tightening block, a clamping portion is formed on one side of the pre-tightening block, a side of the annular positioning groove close to the clamping portion is hollowed out, and a plurality of hollow ejection holes are formed on the bottom circumference thereof, a first ejection cylinder is arranged on the mounting surface, and the output end of the first ejection cylinder is connected to a plurality of ejector rods through a connecting plate (not shown in the figure), and the positions of the ejector rods and the ejection holes are opposite to each other, so that the torsion spring When the spring finger cylinder moves the torsion spring to just above the torsion spring pretensioning device, the pretensioning motor rotates to make the clamping groove face the inner hook of the torsion spring in the non-tightened state, and the inner hook of the torsion spring is aligned with the clamping groove and the outer hook of the torsion spring is aligned with the clamping portion by rotating the second rotating cylinder. The seventh driving cylinder presses down to make the torsion spring finger cylinder send the torsion spring into the annular positioning groove, and then releases the torsion spring finger cylinder and returns to its original position under the push of the sixth driving cylinder. At this time, the torsion spring removing device synchronously moves to just above the torsion spring pretensioning device, and the pretensioning motor works to drive the inner hook of the torsion spring to twist through the clamping groove. At this time, the outer hook at the other end of the torsion spring is limited by the clamping portion, and the torsion spring twists. When it rotates to the predetermined twisting state, the pretensioning motor stops rotating. The eighth driving cylinder is pressed down, so that the torsion spring removing device moves to the upper end of the annular positioning groove, the first ejection cylinder extends out, and passes through the ejection holes through a number of ejector rods, thereby transferring the torsion spring in a torsion state to the torsion spring removing device, the eighth driving cylinder retracts, and brings up the torsion spring in a torsion state, and finally extends out again through the sixth driving cylinder, and transfers the torsion spring removing device to just above the handle assembly tooling, and then follows the eighth driving cylinder to extend here, and finally releases the torsion spring in a torsion state to the core shaft part of the outer seat of the tooling, at this time, the inner hook on the inner side of the torsion spring is stuck in the pre-limiting groove, and the outer hook on the outer side of the torsion spring hooks the torsion spring lap structure, and the torsion spring remains in a torsion state, so that it can be finally assembled on the handle of the handle.

[0090] The torsion spring removing device includes a removing end fixed to the output end of the eighth driving cylinder, an ejection structure which can move vertically relative to the removing end, and a second ejection cylinder for driving the ejection structure to move vertically. The lower end of the removing end is inwardly recessed with a matching hole which is engaged with the positioning column at the upper end of the core shaft member. A pair of positioning grooves which are opposite to the pre-limiting grooves are symmetrically arranged on both sides of the matching hole. The ejection structure is a pair of rod-shaped components which slide along the extending direction of the positioning grooves. The top of the ejection structure is transmission-connected with the output end of the second ejection cylinder. A matching column for limiting the outer hook of the torsion spring is arranged at the end of the removing end and on one side of the matching hole. Therefore, when the first ejection cylinder is in the torsion When the torsion spring in the rotating state is pushed out, the outer hook of the torsion spring smoothly transitions to the state of hooking the matching column, and the inner hook on the inner side of the torsion spring smoothly transitions to one of the positioning grooves, so that the torsion spring is smoothly transferred to the torsion spring removal device. When it moves to the upper end of the tooling outer seat, as the eighth driving cylinder is pressed down, the matching hole of the removal end is inserted into the positioning column of the core shaft part. At this time, the pre-limiting groove is relative to the positioning groove, and the matching column is relative to the torsion spring overlap structure. The second ejection cylinder is extended, and the ejection structure pushes the torsion spring out of the removal end along the positioning groove, so that it smoothly transitions to the core shaft part on the tooling outer seat, and it is still in a torsion state, completing the pre-loading and loading process of the torsion spring.

[0091] It also includes a press-fitting mechanism, which is arranged on the press-fitting position, including a downward pressing mechanism for pressing the handle against the positioning column and an upward pushing mechanism for pushing the sleeve so that the sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring on the core shaft are transferred to the handle shaft end.

[0092] The cam is secured to the bottom of the handle and has a spring loaded upper end, the lower end of the handle being secured to the bottom of the handle and having a camming mechanism connected thereto.

[0093] Among them, the setting of the flexible pressing block is selected accordingly according to the shape of the handle. For example, if the handle has a flat surface, a flexible pressing block with a flat end surface can be selected for adaptation. This is not limited here. The use of the flexible pressing block can, on the one hand, flexibly press the outside of the handle to avoid accidentally damaging the appearance of the handle during the press-fitting process. On the other hand, it can also adapt to various handle shapes and realize the press-fitting of handles of different shapes, so that the press-fitting mechanism can be suitable for different types of handle assemblies.

[0094] The lifting mechanism includes a lifting cylinder which is arranged on the mounting surface and located directly below the rotating surface. The output end of the lifting cylinder is opposite to the central axis where the pushing sleeve is located, and the end of the output end can be directly connected and fixed to the bottom of the pushing sleeve, or can be movably fixed. Therefore, when the output end of the lifting mechanism is extended, the pushing sleeve is driven to rise, pushing the sleeve, cover body, gasket, torsion spring, edge limit plate, retaining spring and other parts sleeved on the outer wall of the core shaft to make it smoothly transition to the rotating shaft end of the handle.

[0095] Preferably, it also includes a cover loading position, on which a cover loading mechanism is provided, the cover loading mechanism includes a cover conveying device and a cover loading device, the cover loading device is used to transfer the cover on the cover conveying device to the core shaft part of the handle assembly tooling at the corresponding position, specifically, the cover conveying device can be a rectangular rotary type, circular rotary type, belt conveyor type or manual loading type loading structure, and the rectangular rotary type is specifically selected in this embodiment.

[0096] In particular, the cover body in this embodiment takes the inner cover as an example, which can also be replaced by a surface cover, and is not limited here.

[0097] The cover body conveying device is specifically composed of a number of rotating unit plates that enclose a closed rectangle in the horizontal direction. The tooling outer seats of a number of tooling are arranged one by one on the rotating unit plates, so that the number of tooling can be circulated and transmitted along a closed rectangular path in the horizontal or vertical direction. The conveying of the number of rotating unit plates is driven by a cylinder or a belt. According to the positioning needs, a columnar limiting structure corresponding to the limiting hole on the cover body can be added to the rotating unit plate.

[0098] Specifically, in the present embodiment, the cover body conveying device includes a planar rectangular rotating channel, in which a circulation channel is formed for the rotating unit plate to be circulated and transported along its rectangular path, and a group of push cylinders are respectively arranged at both ends of the circulation channel, and one push cylinder in each group is arranged on one side of the long side of the circulation channel, and is responsible for pushing the rotating unit plate in front of it to be transported forward along the first side (i.e., the long side) of the circulation channel by the spacing of a rotating unit plate, and the other push cylinder is arranged on one side of the short side of the circulation channel, and is responsible for pushing the rotating unit plate in front of it to transition along one of the long sides of the circulation channel to the long side of the other side. In addition, the rotating unit plates are continuously and densely laid on the circulation channel and a gap of a rotating unit plate is left, so that the two groups of push cylinders can realize the circulated transportation of several rotating unit plates in the circulation channel.

[0099] Among them, the cover body feeding device includes a sixth bracket, an eighth mounting plate extending horizontally along the top of the sixth bracket toward the cover body feeding position, a ninth mounting plate sliding along the extension direction of the eighth mounting plate, and a ninth driving cylinder arranged on one side of the eighth mounting plate and the output end of which is fixed to the ninth mounting plate. A notch is formed in the middle of the eighth mounting plate, and a tenth driving cylinder is arranged on one side of the ninth mounting plate and located above the notch. The output end of the tenth driving cylinder passes through the notch and fixes a cover body finger cylinder. The cover body finger cylinder has a pair of clamping claws (not shown in the figure), and a cover body groove (not shown in the figure) for accommodating the cover body is formed between the two clamping claws. Therefore, the cover body is continuously fed through the first equidistant circulation component, and then the cover body is driven to be moved from the rectangular rotary channel to the cover body sleeve seat of the tooling outer seat through the clamping of the cover body finger cylinder and the extension and retraction of the ninth driving cylinder and the tenth driving cylinder. The through hole in the middle and the limiting hole position on the edge are respectively aligned with the core shaft member and the positioning structure, so as to finally realize convenient feeding of the cover body.

[0100] Preferably, it also includes a handle loading position which is arranged in sequence before the press-fitting position, the handle loading position is provided with a handle loading mechanism, the handle loading mechanism includes a handle circulation assembly and a handle loading device, the handle circulation assembly is provided with a handle positioning structure for positioning the handle shaft end, and the handle loading device is used to transfer the handle along the handle circulation assembly to the positioning column of the handle assembly tooling.

[0101] Specifically, the handle circulation assembly includes a second conveying surface, a handle positioning structure arranged on the second conveying surface, and a second circulation driving device for driving the second conveying surface to circulate along a closed rectangular path. The handle loading device is used to transport the handle along the handle loading position to the positioning column of the previous handle assembly tooling of the pressing position.

[0102] In this embodiment, the driving structures of the second equidistant circulation component and the first equidistant circulation component are the same. The difference is that the rotary unit plate is provided with a handle positioning structure for positioning the handle, which is specifically a plug-in structure in the shape of a square rod. When the core shaft hole at the rotating shaft end of the handle is aligned with the handle positioning structure and inserted, the state and orientation of the handle are fixed, thus facilitating the removal and taking of the handle.

[0103] In this embodiment, the handle loading device includes a handle finger cylinder, a second fixing frame in the shape of a "C", and a fourth cylinder assembly (not marked in the figure). One end of the second fixing frame is supported on the fixing plate and is located on the side close to the handle loading position, and the other end of the second fixing frame is supported on the mounting surface. The second equidistant circulation component is arranged on one side of the second fixing frame. The fourth cylinder assembly includes a horizontal moving cylinder and a vertical moving cylinder. The handle finger cylinder is fixed to the output end of the vertical moving cylinder. The telescopic path of the horizontal moving cylinder enables the handle finger cylinder to exactly move between the output position of the second equidistant circulation component and the closest handle assembly tooling. In addition, in this embodiment, the handle finger cylinder has a pair of clamping jaws, and the two clamping jaws have a horizontally protruding clamping part. A clamping groove (not shown in the figure) that fits with the outer side of the rotating shaft end of the handle is formed between the two clamping parts. Thus, the rotating shaft end of the handle is clamped by the clamping part and smoothly transferred to the positioning post of the tooling outer seat. During this process, only the rotating shaft end of the handle is clamped, avoiding clamping the main body of the handle. On the one hand, it can fully avoid damaging the appearance of the handle, and on the other hand, it can also adapt to the clamping of various handles.

[0104] During the above process, the handle positioning structure enables the handle to exactly face the center of the rotating disk when being grabbed by the handle finger cylinder, and the tooling outer seat to be removed is exactly located on the radius of the rotating disk in the direction of the handle. That is, the connection line between the tooling outer seat and the handle is exactly in the radial direction of the rotating disk at this time. Thus, when the handle follows the tooling outer seat and moves to the pressing position of the next working station, it remains in the correct orientation, facilitating the pressing process.

[0105] Preferably, it further includes at least one washer loading position, and a washer loading mechanism is provided on the washer loading position. The washer loading mechanism includes a washer storage bin, a washer transfer device for pushing the single washer at the lowermost end of the washer storage bin to above the closest tooling position, and a washer picking device (not marked in the figure) for picking up the washer above the tooling position and placing it on the core shaft part of the handle assembly tooling.

[0106] Specifically, in the present embodiment, the gasket silo is a box-shaped structure having a vertical gasket groove, and the gaskets are vertically stacked in the gasket silo. The gasket pushing device includes a gasket pushing plate and a gasket cylinder for driving the gasket pushing plate. The upper surface of the gasket pushing plate and the end thereof close to the rotating surface have a gasket groove (not marked in the figure) adapted to the gasket. When the gasket pushing plate moves to the lower end of the gasket silo, the lowest gasket falls into the gasket groove, and after being pushed out, moves to the top of the nearest tooling outer seat to wait for the next step of removal.

[0107] Among them, the gasket removal device includes a vertically retractable fifth cylinder assembly. The structure of the fifth cylinder assembly is the same as that of the first cylinder assembly. The difference lies in that the retaining spring finger cylinder is replaced by a gasket suction device, such as a magnetic suction sleeve, which sucks the gasket out of the gasket groove and downwardly sleeves it onto the core shaft part. The middle part of the suction sleeve is provided with a sleeve hole (not marked in the figure) that is engaged with the positioning column. After the suction sleeve is engaged with the positioning column, the gasket can be released to allow it to fall smoothly onto the core shaft part.

[0108] In addition, the number and position of washers vary according to the requirements of different types of handles. Different numbers of washer feeding mechanisms can be interspersed around the circumference of the rotating surface as needed to adapt to different handle assemblies.

[0109] In particular, the orientation and position of the handle feeding mechanism, the cover body feeding mechanism, the gasket feeding mechanism, the torsion spring feeding mechanism, the edge limit plate feeding mechanism and the retaining spring feeding mechanism on the peripheral side of the rotating surface are adaptively adjusted according to the installation orientation of the handle assembly tooling on the rotating surface, so as to facilitate the loading and removal of each component; in addition, the layout sequence of the handle feeding mechanism, the cover body feeding mechanism, the gasket feeding mechanism, the torsion spring feeding mechanism, the edge limit plate feeding mechanism and the retaining spring feeding mechanism can be arranged clockwise or counterclockwise with respect to the rotating surface, and there is no limitation here.

[0110] In particular, the gaskets can also be loaded through a vibration plate, transported through a straight vibration track, and then clamped to the nearest workstation by XZ dual-axis grasping, which can also achieve loading of the gaskets, and there is no restriction here.

[0111] Preferably, it also includes a unloading position sequentially arranged after the press-fitting position, and a unloading mechanism is provided on the unloading position. The unloading mechanism includes an unloading conveyor belt and a handle unloading device for transferring a handle that has been press-fitted and is located on a handle assembly tooling after the press-fitting position to the unloading conveyor belt.

[0112] Specifically, in the present embodiment, the handle unloading mechanism includes a three-finger cylinder and a sixth cylinder assembly that controls the horizontal and vertical movement of the three-finger cylinder. The horizontal movement trajectory of the sixth cylinder assembly is from the outer seat of the tooling at the unloading position to the unloading conveyor belt. Thus, the cover body can be grabbed by the three-finger cylinder. When the parts on the handle are pressed into place, they form a fixed whole on the handle. The entire assembled handle can be picked up by grabbing the cover body and moved smoothly to the unloading conveyor belt for unloading.

[0113] In particular, in this embodiment, except for the retaining spring, the edge limit plate and the torsion spring, the loading and pre-installation of other components can be replaced by manual methods, and the combination scheme of manual loading is also within the protection scope of this case.

[0114] The beneficial effects of the utility model are as follows:

[0115] By adopting modular design and flexible tooling layout, the automated assembly of handles of different styles can be achieved, which significantly improves production efficiency and assembly accuracy, while reducing the cost and time loss caused by frequent tooling changes.

[0116] Specifically:

[0117] Through the handle assembly tooling, slightly different-sized shaft sleeves, covers, gaskets, torsion springs, edge limiters and retaining rings can be inserted into the mandrel parts, and handles of different sizes and shapes can be inserted into the positioning columns of the handle assembly tooling accordingly. There is no need to design special tooling for each handle, which greatly enhances the flexibility and application range of the equipment;

[0118] The equipment integrates multiple feeding devices such as the clip feeding mechanism, the edge limiter feeding mechanism, the torsion spring feeding mechanism, etc. It can automatically complete the feeding and preliminary assembly of various components during the cyclic movement of the tooling position, reducing manual intervention and improving production efficiency.

[0119] The synergistic effect of the pressing mechanism and the lifting mechanism ensures the precise alignment and firm press-fitting of the handle and other components, avoiding the deviation and instability that may occur during manual operation and ensuring the assembly quality.

[0120] In summary, the utility model not only solves the versatility and efficiency problems in the traditional manual assembly mode, but also greatly improves the automation level and product quality of handle production through highly integrated and intelligent design, providing a more efficient, flexible and intelligent solution for handle assembly.

[0121] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A universal handle automatic assembly device, characterized in that: include: a frame, an upper end of which forms a mounting surface; The turntable mechanism comprises a rotating surface arranged on the mounting surface and a rotating driving device for driving the rotating surface to cyclically transmit along a closed path at equal intervals, a plurality of tooling positions are arranged at intervals around the peripheral edge of the upper end of the rotating surface, and the rotating surface forms at least a clamping spring loading position, an angular limiting piece loading position, a torsion spring loading position and a press-fitting position around the peripheral edge thereof; The handle assembly tooling is arranged on the tooling position in a one-to-one correspondence, including a tooling outer seat fixed to the rotating surface, a push shaft sleeve vertically inserted into the tooling outer seat, and a core shaft member slidably sleeved in the push shaft sleeve, a positioning column that can be matched with the core shaft hole at the handle shaft end is formed on the upper end of the core shaft member, and a group of pre-limiting grooves distributed vertically are symmetrically arranged on both sides of the core shaft member along its radial direction, and the shaft sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring can all be inserted into the core shaft member; The circlip feeding mechanism is arranged at the circlip feeding position and is used to transfer the circlip to the core shaft of the handle assembly tooling when the tooling position moves to the circlip feeding position in sequence; The edge and corner stopper feeding mechanism is arranged at the edge and corner stopper feeding position, and is used to transfer the edge and corner stopper to the core shaft of the handle assembly tooling when the tooling position moves to the edge and corner stopper feeding position in sequence; The torsion spring feeding mechanism is arranged at the torsion spring feeding position and is used to transfer the torsion spring to the core shaft of the handle assembly tooling when the tooling position moves to the torsion spring feeding position in sequence; The press-fitting mechanism is arranged at the press-fitting position, and includes a pressing mechanism for pressing the handle against the positioning column and a pushing mechanism for pushing the sleeve upward so that the sleeve, cover body, gasket, torsion spring, edge limit plate and retaining spring on the core shaft are transferred to the handle shaft end.

2. The universal handle automatic assembly equipment according to claim 1, characterized in that: The revolving surface is disc-shaped, and the closed path is a circular path; Alternatively, the revolving surface is a rectangle, and the closed path is a rectangular path; Alternatively, the revolving surface is waist-shaped, and the closed path is a waist-shaped path.

3. The universal handle automatic assembly equipment according to claim 1, characterized in that: The handle assembly tool also includes: A limiter, arranged in the tooling outer seat, is used to limit the vertical sliding of the mandrel and the push sleeve so that the mandrel and the push sleeve form a lowest position and a highest position; The elastic member is arranged in the tooling outer seat and is used for elastically contacting the push sleeve so that the push sleeve has a tendency to maintain the lowest position and elastically contacting the core shaft member so that the core shaft member has a tendency to maintain the highest position.

4. The universal handle automatic assembly equipment according to claim 1, characterized in that: The retaining spring feeding mechanism includes a retaining spring hopper, a retaining spring pushing device for transferring the retaining spring to the top of the nearest handle assembly tooling, a retaining spring finger cylinder for clamping and stretching the retaining spring, and a first cylinder assembly for driving the retaining spring finger cylinder to move vertically. The retaining spring finger cylinder is arranged directly above the circulation trajectory of the handle assembly tooling.

5. The universal handle automatic assembly equipment according to claim 1, characterized in that: The corner limiter feeding mechanism includes a first feeding track, a first flipping mechanism arranged at the exit side of the first feeding track and used to grab the corner limiter at the end of the first feeding track, a clamping finger cylinder for clamping the corner limiter whose orientation has been corrected by the first flipping mechanism, and a second cylinder assembly for driving the clamping finger cylinder to reciprocate between the handle assembly tooling and the first feeding track. The first flipping mechanism is used to judge the orientation of the corner limiter to determine whether to perform a flip correction.

6. The universal handle automatic assembly equipment according to claim 1, characterized in that: The torsion spring feeding mechanism includes a second feeding track, a second flipping mechanism arranged at the exit side of the second feeding track and used to grab the torsion spring at the end of the second feeding track, a torsion spring finger cylinder used to clamp the torsion spring whose direction has been corrected by the second flipping mechanism, a torsion spring pre-tensioning device arranged between the second feeding track and the handle assembly tooling, a torsion spring removing device used to remove the torsion spring that has been pre-tensioned by the torsion spring pre-tensioning device, and a third cylinder assembly used to synchronously drive the torsion spring finger cylinder and the torsion spring removing device to reciprocate between the second feeding track and the torsion spring pre-tensioning device and between the torsion spring pre-tensioning device and the handle assembly tooling. The second flipping mechanism is used to pick up the torsion spring and judge its direction to decide whether to perform flipping correction.

7. The universal handle automatic assembly equipment according to claim 1, characterized in that: It also includes a cover loading position, on which a cover loading mechanism is provided. The cover loading mechanism includes a cover conveying device and a cover loading device. The cover loading device is used to transfer the cover on the cover conveying device to the core shaft of the handle assembly tooling at the corresponding position.

8. The universal handle automatic assembly equipment according to claim 1, characterized in that: It also includes a handle loading position which is arranged in sequence before the press-fitting position, the handle loading position is provided with a handle loading mechanism, the handle loading mechanism includes a handle circulation component and a handle loading device, the handle circulation component is provided with a handle positioning structure for positioning the handle shaft end, and the handle loading device is used to transfer the handle along the handle circulation component to the positioning column of the handle assembly tooling.

9. The universal handle automatic assembly equipment according to claim 1, characterized in that: It also includes at least one gasket loading position, on which a gasket loading mechanism is provided. The gasket loading mechanism includes a gasket bin and a gasket transfer device for transferring a single gasket to a core shaft member closest to the tooling position.

10. The universal handle automatic assembly equipment according to claim 1, characterized in that: It also includes a material unloading position arranged after the press-fitting position, on which a material unloading mechanism is arranged, and the material unloading mechanism includes a material unloading conveyor belt and a handle unloading device for transferring the handle located at the press-fitting position to the material unloading conveyor belt.

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