A clamping spring press equipment for an outer rotor fan

Abstract

The application provides a clasp spring press-fitting equipment of an outer rotor fan, and belongs to the technical field of fan assembly. It solves the technical problems of the existing tooling, such as the need for more manual participation, low automation degree, low production efficiency and low yield rate when press-fitting the clasp spring. The clasp spring press-fitting equipment of the outer rotor fan comprises a rotor positioning seat, a feeding press pipe, a press pipe driving part, a feeding seat, a feeding column, a feeding push plate and a feeding baffle. The feeding press pipe moves downward to press the clasp spring into the mounting shaft. The feeding column is sequentially sleeved with the clasp springs in the vertical direction. The feeding push plate can push the clasp spring in the gap along the feeding sliding groove to above the discharging hole. The lower portion of the discharging hole is provided with a clasp spring opening part. The clasp spring opening part is connected with the feeding seat through clamping jaws. The application realizes the automatic feeding of the clasp spring through the cooperation of the feeding column, the feeding push plate and the feeding baffle. The cooperation of the feeding press pipe, the positioning column body, the clasp spring opening part and the clamping jaws realizes the opening and automatic press-fitting of the clasp spring. The structure is simple, and the manual participation is less.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of fan assembly, and particularly relates to a clasp spring press-fitting equipment of an outer rotor fan. BACKGROUND

[0002] The outer rotor fan is an important component indispensable to the ventilation, purifier, air conditioner, oil smoke machine and animal husbandry industry. In the traditional assembly mode, the clasp spring of the outer rotor fan is manually fitted by a clasp spring pliers. Since the clasp spring pliers cannot guarantee the opening gap of the clasp spring, the clasp spring is easily damaged in the installation process, and the damage is not easy to be found and shipped after assembly, which seriously affects the quality and service life of the outer rotor fan.

[0003] The application with the application number 202120207046.6 discloses a clasp spring installation device of an outer rotor motor, which comprises a pressing main body, a compression cavity for a positioning pin sliding is arranged in the pressing main body, a push head is arranged at the front end of the pressing main body, a pin hole is arranged at one end of the compression cavity and is communicated to the front end of the push head, the pin hole is in communication with the compression cavity, the positioning pin is inserted into the pin hole, the front end of the positioning pin penetrates out of the push head, and a return spring is arranged between the positioning pin and the bottom end of the compression cavity.

[0004] The above-mentioned clasp spring installation device can press the clasp spring into the installation shaft of the outer rotor motor, but still has the following defects:

[0005] 1. The bearing or clasp spring needs to be manually placed into the tool, and automatic feeding of the bearing or clasp spring cannot be realized;

[0006] 2. After the clasp spring is manually placed, the plane where the clasp spring is located cannot be guaranteed to be perpendicular to the installation shaft of the outer rotor (whether the clasp spring is horizontal) when the clasp spring is pressed into the installation shaft, so that the clasp spring is pressed and damaged, the product quality is affected, and the yield of press-fitting is low;

[0007] 3. When the clasp spring is press-fitted, there is no clasp spring opening mechanism, so that the clasp spring is deformed after being pressed in, and will be invalid soon, causing the fan to fall off during operation and causing a major accident.

[0008] The above-mentioned defects cause that the above-mentioned tool still needs more manual participation when press-fitting the clasp spring, the degree of automation is low, the production efficiency is not high, and the yield is low. SUMMARY

[0009] In view of the defects of the prior art, the purpose of the present application is to provide a clasp spring press-fitting equipment which can automatically assemble without damaging the elastic deformation of the clasp spring with less manual participation.

[0010] The purpose of the present application can be realized by the following technical solutions:

[0011] The snap spring press equipment of an outer rotor fan is characterized in that: it comprises a rotor positioning seat, a feeding press pipe, a press pipe driving part, a feeding seat, a feeding column, a feeding push plate and a feeding baffle, the press pipe driving part can drive the feeding press pipe to move downward and press the snap spring into the mounting shaft of the outer rotor fan placed in the rotor positioning seat, the feeding seat is provided with a feeding chute along the length direction thereof, the bottom of the right part of the feeding chute is provided with a discharging hole, the discharging hole, the rotor positioning seat and the feeding press pipe are coaxially arranged, the feeding column is sequentially sleeved with snap springs in the vertical direction, the feeding column and the bottom of the feeding chute have a gap with the thickness of the snap spring, the feeding push plate can push the snap spring in the gap along the feeding chute to above the discharging hole, and the feeding baffle can cooperate with the feeding push plate to fix the snap spring above the discharging hole; the lower part of the discharging hole is provided with a snap spring opening part, the snap spring opening part is connected with the feeding seat through the clamping jaw arranged on the feeding seat, and the positioning column body and the lower spring driving the positioning column body to move downward are slidably arranged in the feeding press pipe, and the lower end of the positioning column body can abut against the upper end of the snap spring opening part.

[0012] The snap spring press equipment realizes the automatic feeding of the snap spring through the cooperation of the feeding column, the feeding push plate and the feeding baffle, realizes the opening and automatic press of the snap spring through the cooperation of the feeding press pipe, the positioning column body, the snap spring opening part and the clamping jaw, has a simple structure, less human participation, and can realize the automatic feeding, automatic opening and automatic press of the snap spring, and has a high production efficiency.

[0013] The cooperation of the feeding chute and the feeding push plate can send the snap spring to the discharging hole (at this time, the snap spring ear of the snap spring faces left, and the arc-shaped snap spring body faces right), and the cooperation of the feeding push plate and the feeding baffle can realize the dynamic fixing of the snap spring, so that the snap spring can still maintain a horizontal state when moving to above the discharging hole, the positioning column body can pass through the snap spring and abut against the snap spring opening part, so that the snap spring can smoothly fall and be sleeved on the snap spring opening part; the snap spring gradually moves downward along the snap spring opening part under the action of the discharging press pipe, is gradually opened in the process of moving downward, and is immediately sleeved on the snap spring groove of the mounting shaft when separated from the snap spring opening part, the whole opening process is smooth and smooth, realizes the automatic press of the snap spring, and can also avoid forcibly pressing the snap spring into the snap spring groove without opening the snap spring, so that the damage to the snap spring in the press process is reduced.

[0014] The design of the positioning column and the lower spring can firmly fix the clamp spring opening piece between the positioning column and the mounting shaft during the process of pressing and opening the clamp spring; the design of the clamping jaw can make the clamp spring opening piece be clamped by the clamping jaw when the clamp spring is not pressed, and when the clamp spring is opened downward, the clamping jaw is rotated outward around the shaft to leave the clamp spring opening piece by the outer circle of the clamp spring, so that the clamp spring can slide through the section between the clamping jaw and the clamp spring opening piece, enter the clamp spring groove on the mounting shaft, and complete a cycle; so that the process of pressing and opening the clamp spring is more stable and smooth, the function of automatically opening the clamp spring and pressing is realized, the participation of manual work is greatly reduced, and the automation level of the clamp spring pressing equipment is improved.

[0015] The clamp spring involved in the clamp spring pressing equipment includes a clamp spring body and a clamp spring ear, the clamp spring body has an opening, both ends of the opening are provided with the clamp spring ear fixedly connected with the clamp spring body, and an operation hole is arranged on the clamp spring ear. When the clamp spring is installed, the clamp spring is first opened, at this time, the opening between the two clamp spring ears becomes larger, and after the clamp spring is installed in place, it is loosened, and the clamp spring body is contracted and recovered under the action of its own elasticity; the left side of the feeding push plate is provided with a push plate cylinder for driving the feeding push plate to move right.

[0016] In the clamp spring pressing equipment of the outer rotor fan, a guide pipe body is arranged in the feeding pressing pipe, the upper end of the feeding pressing pipe is fixedly connected with the driving rod of the pressing pipe driving piece, the guide pipe body can move along the axial direction relative to the feeding pressing pipe, an upper spring for driving the guide pipe body to move downward is arranged between the upper end of the guide pipe body and the driving rod, the positioning column is arranged in the guide pipe body and can move along the axial direction relative to the guide pipe body, the upper end of the positioning column is outwardly formed with a limiting convex ring, a lower spring for driving the positioning column to move downward is arranged between the upper end of the guide pipe body and the limiting convex ring, the lower end of the guide pipe body is inwardly formed with a limiting ring, the lower side surface of the limiting convex ring can abut against the limiting ring, and the lower end of the positioning column can abut against the clamp spring opening piece.

[0017] When the positioning column body and the card spring strutting piece abut in the card spring press-fitting equipment, the lower edge of the loading pressure tube is still above the loading seat, and the loading pressure tube needs a larger stroke to press the card spring into place. If there is only one lower spring, the spring needs to be designed to be very long, and it will be compressed very short when the card spring is pressed into place. At this time, the force of the spring rebound is very large, and the pressure tube driving piece needs to exert a large force on the pressure tube to make the card spring press-fitted into place. At the same time, the longer spring is also prone to bending and other phenomena, which affects the normal work of the card spring press-fitting equipment. In order to overcome the above problems existing in the single spring, and further improve the stability of the card spring press-fitting equipment during work, a slidable guide pipe body is arranged in the loading pressure tube, and then an upper spring is arranged between the upper end of the guide pipe body and the upper end of the loading pressure tube, and a lower spring is arranged between the upper end of the guide pipe body and the upper end of the positioning column body. By arranging two springs, the length of each spring does not need to be too long, and the compression stroke of each spring is also not very long when the loading pressure tube presses the card spring. The resistance caused by the spring when the card spring is pressed is greatly reduced, so that the entire press-fitting process is more stable and smooth.

[0018] In the above-mentioned card spring press-fitting equipment of an outer rotor fan, the lower end of the positioning column body is tapered to form a plug-in part, the card spring strutting piece is provided with a plug-in slot or a plug-in hole, the plug-in slot or the plug-in hole is coaxially arranged with the card spring strutting piece, the plug-in part can be inserted into the plug-in slot or the plug-in hole, the lower end of the plug-in part is conical, the lower end of the card spring strutting piece is provided with a positioning slot matched with the mounting shaft, and the mounting shaft can be inserted into the positioning slot and abut against the bottom of the positioning slot.

[0019] The plug-in part and the plug-in slot or the plug-in hole cooperate, which not only makes the connection between the positioning column body and the card spring strutting piece more firm, but also plays a positioning role on the card spring strutting piece, so that the card spring strutting piece can maintain a coaxial state with the positioning column body during the press-fitting of the card spring. In the unloading hole, the card spring clamped by the loading push plate and the loading baffle falls parallel on the card spring strutting piece during the downward movement of the loading pressure tube, so as not to drop and hang on the top of the card spring strutting piece, which causes the loading pressure tube to be unable to move downward and affects the assembly effect, thereby improving the yield of the card spring press-fitting equipment. The conical plug-in part has a guiding effect, which makes the plug-in part more easily inserted into the plug-in slot or the plug-in hole. The design of the positioning slot makes the connection between the card spring strutting piece and the mounting shaft more firm. The depth of the above-mentioned positioning slot is close to the distance from the card spring slot to the top of the mounting shaft, so as to ensure that the card spring can be directly sleeved in the card spring slot after being separated from the card spring strutting piece, and the press-fitting and assembly of the card spring are more stable and smooth.

[0020] In the snap spring press-fitting equipment of the outer rotor fan, the press pipe driving member is fixedly connected to the horizontally arranged mounting plate, the lower side of the mounting plate is fixedly connected with the vertically arranged guide plate, the upper part and the middle part of the upper feeding press pipe are axially provided with guide grooves, the guide plate is inserted into the guide grooves, and the upper feeding press pipe can move up and down relative to the guide plate under the driving of the press pipe driving member; the mounting plate is provided with a seat driving member for driving the upper feeding seat to move up and down, and the mounting plate is provided with at least three seat guide rods, and the upper feeding seat is provided with seat guide holes matched with the seat guide rods.

[0021] The design of the guide plate and the guide groove can ensure that the upper feeding press pipe can move vertically downward along the guide plate during the press-fitting process. When the press pipe driving member is a cylinder, the driving rod of the cylinder will slightly rotate during the process of driving the upper feeding press pipe to move up and down, thereby driving the press pipe driving member fixedly connected thereto to rotate synchronously. However, it is difficult to ensure that the upper feeding press pipe is completely perpendicular to the mounting plate or coaxial with the lower feeding hole during the actual assembly process. When the upper feeding press pipe rotates by a certain angle following the driving rod, the upper feeding press pipe deviates from the center of the lower feeding hole. Therefore, the design of the guide plate and the guide groove can also prevent the upper feeding press pipe from rotating, avoid the situation that the upper feeding press pipe cannot be aligned with the lower feeding hole due to rotation, effectively prevent the snap spring from being not in place due to the deviation of the upper feeding press pipe during the press-fitting of the snap spring, and facilitate to improve the yield rate of the press-fitting of the snap spring press-fitting equipment. The cooperation of the seat guide rods and the seat guide holes can ensure that the upper feeding seat always maintains a horizontal state during the movement of the upper feeding seat, avoid the inclination of the upper feeding seat after the movement, and further improve the yield rate of the press-fitting of the snap spring press-fitting equipment. The press pipe driving member and the seat driving member can be a cylinder or a hydraulic cylinder or other driving devices.

[0022] In the snap spring press-fitting equipment of the outer rotor fan, the right end of the upper feeding push plate is a plane, the left end of the upper feeding baffle is provided with an arc-shaped groove matched with the arc-shaped outer edge of the snap spring, the upper feeding baffle is fixedly connected with a guide block, and the left side of the guide block is provided with an inclined guide surface with the left side being lower than the right side. The right end of the upper feeding chute is fixedly connected with a baffle positioning block, a baffle elastic member for driving the upper feeding baffle to move to the left is arranged between the baffle positioning block and the upper feeding baffle, and the initial position of the left end of the upper feeding baffle is located above the lower feeding hole. The upper side of the upper feeding seat is fixedly provided with a cover plate, the cover plate can cover the upper feeding chute between the upper feeding column and the baffle positioning block, the cover plate is provided with a through hole coaxially arranged with the lower feeding hole, and the diameter of the through hole is greater than the diameter of the upper feeding press pipe.

[0023] The arc-shaped groove can make the feeding baffle better support the clamping spring, and the baffle elastic member can generate a leftward force on the clamping spring after the clamping spring contacts the feeding baffle, and the force gradually increases as the clamping spring moves to the right. The process that the clamping spring gradually moves above the discharging hole after contacting the feeding baffle is a process that the clamping spring gradually suspends, and the force exerted by the feeding baffle on the clamping spring gradually increases, which can fix the clamping spring when it suspends, and avoid the clamping spring from tilting when moving above the discharging hole. In addition, the baffle elastic member can also buffer the force generated when the clamping spring contacts the feeding baffle, avoid the damage of the clamping spring caused by rigid contact, and solve the problems of difficult fixation and easy damage of the clamping spring during automatic feeding. This is conducive to further improving the yield of the clamping spring press-fitting equipment.

[0024] In the clamping spring press-fitting equipment of the outer rotor fan, the feeding push plate is fixedly connected with a limiting protrusion, the feeding seat is fixedly connected with a feeding limiting plate, the feeding limiting plate is arranged on the left side of the feeding column, the feeding limiting plate is fixedly connected with a limiting rod and a buffer, the left ends of the limiting rod and the buffer can abut against the limiting protrusion, the left end of the buffer protrudes from the left end of the limiting rod, and the feeding push plate pushes the clamping spring to be above the discharging hole when the limiting protrusion abuts against the limiting rod.

[0025] The feeding limiting plate and the limiting rod can limit the movement of the feeding push plate, so that the feeding push plate can stop moving when pushing the clamping spring above the discharging hole. When the clamping spring press-fitting equipment works, the limiting protrusion first contacts the buffer, and then contacts the limiting rod and stops moving. The buffer can effectively buffer the impact force generated when the limiting protrusion contacts the limiting rod, effectively avoid the vibration of the feeding push plate caused by the impact force when the limiting protrusion contacts the limiting rod, and the vibration may cause the clamping spring to tilt or be damaged. Therefore, the buffer can not only protect the feeding push plate, the clamping spring, the limiting protrusion and the limiting rod from the impact force, but also make the clamping spring tightly contact the groove bottom of the feeding chute and keep horizontal during the whole feeding process, which is conducive to improving the yield of the clamping spring press-fitting equipment.

[0026] In the clamping spring press-fitting equipment of the outer rotor fan, the left side of the feeding column is provided with a positioning protruding strip matched with the clamping spring, the outer end of the positioning protruding strip is fixedly connected with a mounting block, and the mounting block is fixedly connected with the feeding seat.

[0027] The design of the positioning protruding strip can match the shape of the clamping spring, realize the horizontal positioning of the clamping spring, and ensure that the right end of the clamping spring is an arc segment and the left end is a clamping spring ear with an operating hole when the clamping spring falls into the feeding chute.

[0028] In the snap spring press-fitting equipment of the outer rotor fan, the snap spring expander comprises a first taper section, a second taper section and a cylindrical section arranged in sequence from top to bottom, the inclination angle of the first taper section is greater than the inclination angle of the second taper section, the clamping jaw is provided in two and symmetrically arranged front and back, the lower end of the clamping jaw is clamped on the outer side wall of the cylindrical section, the middle part of the clamping jaw is hinged to the blanking seat, and the upper part of the clamping jaw is connected with a clamping elastic element for driving the lower end of the clamping jaw to rotate inward around the hinge.

[0029] The three-section design of the snap spring expander can make the process of expanding the snap spring more smooth. When the snap spring is not expanded and elastically deformed, the first taper section with a relatively large inclination angle can quickly expand the snap spring to a certain extent. At this time, the rebound force of the snap spring due to elastic deformation is relatively large, and the second taper section with a relatively small inclination angle is used to continue expanding the snap spring, which can avoid the vertical deformation or wear and damage of the snap spring during the expansion process, and is beneficial to improve the stability of the expansion process. The cylindrical section is a transition section. When the snap spring falls onto the snap spring expander, it is sometimes inclined and suspended. During the expansion process of the first taper section and the second taper section, the snap spring gradually approaches the horizontal state under the action of the loading pressure pipe, and then the snap spring can be more horizontally arranged through the cylindrical section. Finally, the snap spring can smoothly separate from the snap spring expander and be sleeved in the snap spring groove of the mounting shaft.

[0030] In the snap spring press-fitting equipment of the outer rotor fan, the rotor positioning seat is mounted on the supporting plate, the supporting plate is provided with a mounting hole, the upper end of the mounting hole is provided with a circular step, the outer side wall of the rotor positioning seat is fixed with a circular protruding ring, the circular protruding ring can be placed on the circular step, the lower end of the rotor positioning seat protrudes from the lower side of the supporting plate, and a jacking mechanism is arranged below the rotor positioning seat and can drive the rotor positioning seat to separate from the supporting plate and keep horizontal.

[0031] The jacking positioning mechanism can horizontally lift the rotor positioning seat to separate it from the supporting plate or carry the supporting plate to separate it from the conveying track, which can avoid the influence of the conveying track on the rotor positioning seat, keep the rotor positioning seat horizontal, avoid the inclination of the mounting shaft of the outer rotor of the fan due to the inclination of the rotor positioning seat, and thus avoid the failure of the snap spring expander to be connected with the mounting seat during the press-fitting process, the inclination of the snap spring expander relative to the snap spring during the press-fitting process, and the failure of the snap spring to be smoothly clamped into the snap spring groove due to the inclination, thereby affecting the yield of the press-fitted products.

[0032] In the snap spring press-fitting equipment of the outer rotor fan, the jacking mechanism comprises a jacking panel, a guide positioning block, at least three jacking guide rods, a jacking cylinder, a jacking hinge, two jacking connecting rods and a jacking positioning seat, at least three insertion holes are arranged on the rotor positioning seat in a circumferential direction, the jacking panel is horizontally arranged and located directly below the feeding seat, an insertion column matched with the insertion hole is fixedly connected to the upper side of the jacking panel, and the jacking cylinder is arranged below the jacking panel to drive the jacking panel to move up and down;

[0033] The upper end of one of the jacking connecting rods is hingedly connected to the jacking panel, the lower end of the other jacking connecting rod is hingedly connected to the base, the other ends of the two jacking connecting rods are hingedly connected to the jacking hinge, the jacking cylinder is transversely installed on the base, the driving rod of the jacking cylinder is connected to the jacking hinge and drives the jacking hinge to move transversely, the jacking positioning seat is fixedly connected to the base, the upper end of the jacking positioning seat can abut against the lower side of the jacking panel, the lateral surface of the jacking positioning seat is provided with a transverse limiting rod, and the transverse limiting rod can abut against the jacking hinge when the two jacking connecting rods are in a straight line.

[0034] The insertion hole and the insertion column can horizontally position the rotor positioning seat, so that the installation shaft, the lower feeding hole and the upper feeding pressure pipe of the outer rotor of the fan are coaxial during press fitting.

[0035] The two lifting connecting rods and the lifting hinge form a two-bar mechanism, and only the rotor positioning seat and / or the support plate need to be lifted during operation, and the lifting distance does not need to be too large, and the design of the lifting positioning seat can limit the lowest height of the lifting panel, and the extension of the two-bar mechanism cannot be too long, and if the lifting panel is lowered too much, it needs ten times the usual cylinder force to lift it; further, when the press fitting is performed, the two lifting connecting rods not only need to bear the gravity of the lifting panel, the lifting guide rod, the support plate, the rotor positioning seat and the outer rotor of the fan, but also need to bear the pressure applied by the positioning column, and therefore the two lifting connecting rods need to have good supportability, if the two lifting connecting rods are coaxial and in a straight line, the force acting on the lifting connecting rod will not be dispersed to the horizontal direction, and the lifting connecting rod will not move in the horizontal direction, so that the two lifting connecting rods have good supportability; if the two lifting connecting rods are not in a straight line, and have an included angle of less than 180° between them, when the positioning column applies pressure to the outer rotor of the fan, the lifting connecting rod is likely to be pressed to move the lifting hinge in the direction of the lifting cylinder, thereby causing the lifting panel to be lowered, and the supportability of the lifting connecting rod is poor, and the press fitting process is unstable. The upper end of the lifting positioning seat can be provided with a damper, thereby playing a buffering role, and avoiding hard contact between the lifting panel and the lifting positioning seat, and causing damage or deformation of the lifting panel and the lifting positioning seat.

[0036] The working principle of the present card spring press fitting equipment is as follows: the rotor positioning seat with the fan outer rotor is moved to the lower side of the loading seat along the production line under the driving of the support plate, the stopper on the production line is started to make the support plate no longer advance, and the lifting mechanism first lifts the support plate or the rotor positioning seat to make the support plate separate from the production line.

[0037] The seat driving member drives the loading seat to move downward, and the card spring straining member of the loading seat is in abutment with the mounting shaft of the fan outer rotor.

[0038] Then, the loading push plate pushes the card spring in the loading chute to the right until the card spring is in contact with the loading baffle and continues to move to the right to above the unloading hole, and then the pipe driving member drives the loading pressure pipe to move downward, the positioning column is first inserted into the card spring straining member to fix it between the mounting shaft and the positioning column, and then the loading pressure pipe continuously moves downward and applies pressure to the card spring to make it fall on the card spring straining member; during the downward movement of the loading pressure pipe, the lower spring is gradually compressed, the loading pressure pipe continuously presses the card spring downward, the card spring is gradually moved downward along the card spring straining member and is gradually strained in the process of moving downward, at this time, the clamping jaws are also strained by the outer circle of the card spring, and are clamped on the outer circle of the card spring and the loading pressure pipe in turn, until the card spring is separated from the card spring straining member and is shrunkly arranged on the card spring groove, thereby realizing the loading and press fitting of the card spring.

[0039] Then the feeding pressure tube moves up and separates from the clamping claw first, and the clamping claw re-clamps on the retaining spring expansion piece. At this time, due to the action of the lower spring, the positioning column is still in contact with the retaining spring expansion piece and fixes the retaining spring expansion piece between the positioning column and the mounting shaft until the feeding pressure tube moves to the upper side of the feeding seat. After the lower spring returns to its initial state, the feeding pressure tube continues to move up to separate the positioning column from the retaining spring expansion piece, until the lower end of the positioning column moves to the upper side of the feeding seat, the feeding push plate moves to the left to the left side of the feeding column, and the retaining spring at the lower end of the feeding column falls back into the feeding chute.

[0040] Then the seat driving member drives the loading seat to move upward, so that the retaining spring stretching member is separated from the installation shaft.

[0041] Finally, the lifting mechanism puts the rotor positioning seat back on the support plate so that the support plate contacts the production line again, and sends the fan outer rotor with the circlip installed to the next process; then the circlip pressing equipment repeats the above process.

[0042] Compared with the prior art, the technical effects of the present invention are:

[0043] 1. The present invention realizes automatic loading of the circlip by cooperating with the loading column, the loading push plate and the loading baffle, and realizes the expansion and automatic press-fitting of the circlip by cooperating with the loading pressure tube, the positioning column, the circlip expansion member and the clamping claw. The structure is simple, the manual participation is less, and the automatic loading, expansion and press-fitting of the circlip can be realized, and the production efficiency is high.

[0044] 2. The loading chute and the loading push plate in the present invention cooperate to send the clamping spring to the unloading hole, and the loading push plate and the loading baffle cooperate to realize dynamic fixation of the clamping spring, ensuring that the clamping spring can still maintain a horizontal state when it moves above the unloading hole, which is convenient for the positioning column to pass through the clamping spring and abut against the clamping spring stretching piece, thereby ensuring that the clamping spring can smoothly fall and be mounted on the clamping spring stretching piece. The clamping spring gradually moves downward along the clamping spring stretching piece under the action of the unloading pressure tube, and is gradually stretched during the downward movement, and finally is immediately sleeved on the clamping spring groove of the mounting shaft when it is separated from the clamping spring stretching piece. The entire stretching process is smooth and smooth, realizing automatic press-fitting of the clamping spring, and can also avoid forcibly pressing the clamping spring into the clamping spring groove without stretching the clamping spring, thereby reducing damage to the clamping spring caused by the press-fitting process;

[0045] 3、The design of the positioning column and the lower spring in the application can firmly fix the clamp spring opening piece between the positioning column and the mounting shaft during the process of pressing and opening the clamp spring, and the design of the clamping jaw can make the clamp spring opening piece be clamped by the clamping jaw when the clamp spring is not pressed, and when the clamp spring is opened downward, the clamping jaw is rotated outward around the shaft to leave the clamp spring opening piece by the outer circle of the clamp spring, so that the clamp spring can slide through the section between the clamping jaw and the clamp spring opening piece and enter the clamp spring groove on the mounting shaft, completing a cycle; so that the process of pressing and opening the clamp spring is more stable and smooth, realizing the function of automatically opening the clamp spring and pressing, greatly reducing the participation of manual work, and being conducive to improving the automation level of the clamp spring pressing equipment. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 It is the overall structure schematic diagram of the application.

[0047] Figure 2 It is the overall sectional view and the local enlarged view of the application.

[0048] Figure 3 It is the side view of the feeding seat of the application.

[0049] Figure 4 It is the structure schematic diagram of the feeding pipe pressing and clamp spring opening piece of the application.

[0050] Figure 5 It is the local sectional structure schematic diagram of the clamp spring opening piece of the application.

[0051] Figure 6 It is the structure schematic diagram of the feeding seat of the application.

[0052] Figure 7 It is the structure schematic diagram of the feeding limiting plate and the feeding limiting plate of the application.

[0053] Figure 8 It is the local enlarged view of the feeding baffle of the application.

[0054] Figure 9 It is the structure schematic diagram of the feeding column of the application.

[0055] Figure 10 It is the sectional view of the clamp spring opening piece of the application.

[0056] Figure 11 It is the structure schematic diagram of the clamping jaw of the application.

[0057] Figure 12 It is the structure schematic diagram of the jacking mechanism of the application.

[0058] Figure 13 It is the structure schematic diagram of the supporting plate, the rotor positioning seat and the fan outer rotor of the application.

[0059] Figure 14 is a partial sectional view of the jacking positioning seat of the present application.

[0060] Figure 15 is a partial sectional view of the rotor positioning seat and the support plate connection of the present application.

[0061] Figure 16 is a structural schematic view of the clamping spring of the present application.

[0062] In the figure, 1, mounting plate; 11, pressure pipe driving piece; 12, feeding pressure pipe; 121, upper spring; 122, guide groove; 13, guide pipe body; 131, lower spring; 132, limiting ring; 14, positioning column body; 141, limiting convex ring; 142, plug-in part; 15, guide plate; 16, seat driving piece; 17, seat guide rod;

[0063] 2, feeding seat; 21, feeding column; 211, positioning convex strip; 212, mounting block; 22, feeding push plate; 221, limiting convex block; 23, feeding baffle; 231, arc-shaped groove; 232, baffle positioning block; 233, baffle elastic piece; 234, guide block; 24, feeding sliding chute; 241, discharging hole; 25, clamping spring opening piece; 251, plug-in hole; 252, first tapered section; 253, second tapered section; 254, cylindrical section; 255, positioning groove; 26, clamping jaw; 261, clamping elastic piece; 27, cover plate; 28, feeding limiting plate; 281, limiting rod; 282, buffer piece; 29, seat guide hole;

[0064] 3, rotor positioning seat; 31, circular convex ring; 32, plug hole;

[0065] 4, support plate; 41, mounting hole; 411, circular step;

[0066] 5, jacking mechanism; 51, jacking panel; 511, plug-in column; 52, guide positioning block; 53, jacking guide rod; 54, jacking air cylinder; 55, jacking positioning seat; 551, transverse limiting rod; 552, damper; 56, base; 57, jacking connecting rod; 58, jacking hinged piece;

[0067] 9, outer rotor of the fan; 91, mounting shaft; 92, clamping spring groove;

[0068] 10, clamping spring; 101, clamping spring main body; 102, clamping spring ear; 103, operation hole. DETAILED DESCRIPTION

[0069] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0070] The clasp spring 10 involved in the clasp spring press-fitting equipment includes a clasp spring body 101 and a clasp spring ear 102, the clasp spring body 101 is provided with an opening, both ends of the opening are provided with the clasp spring ear 102 fixedly connected with the clasp spring body 101, and the clasp spring ear 102 is provided with an operation hole 103.

[0071] The clasp spring press-fitting equipment of the outer rotor fan includes a rotor positioning seat 3, a feeding pressing pipe 12, a pressing pipe driving part 11, a feeding seat 2, a feeding column 21, a feeding push plate 22 and a feeding baffle 23, the pressing pipe driving part 11 can drive the feeding pressing pipe 12 to move downward and press the clasp spring 10 into the mounting shaft 91 of the outer rotor fan placed in the rotor positioning seat 3, the feeding seat 2 is provided with a feeding sliding groove 24 along the length direction thereof, the bottom of the right part of the feeding sliding groove 24 is provided with a discharging hole 241, the discharging hole 241, the rotor positioning seat 3 and the feeding pressing pipe 12 are coaxially arranged, the feeding column 21 is sequentially sleeved with the clasp springs 10 along the vertical direction, the feeding column 21 and the bottom of the feeding sliding groove 24 have a gap with the thickness of the clasp spring 10, the feeding push plate 22 can push the clasp spring 10 in the gap along the feeding sliding groove 24 to above the discharging hole 241, and the feeding baffle 23 can cooperate with the feeding push plate 22 to fix the clasp spring 10 above the discharging hole 241; the lower part of the discharging hole 241 is provided with a clasp spring opening part 25, the clasp spring opening part 25 is connected with the feeding seat 2 through a clamping jaw 26 arranged on the feeding seat 2, the positioning column body 14 and the lower spring 131 driving the positioning column body 14 to move downward are slidably arranged in the feeding pressing pipe 12, and the lower end of the positioning column body 14 can abut against the upper end of the clasp spring opening part 25.

[0072] The card spring press equipment realizes the automatic feeding of the card spring 10 through the cooperation of the feeding column 21, the feeding push plate 22 and the feeding baffle 23, realizes the opening and automatic press of the card spring 10 through the cooperation of the feeding pressure pipe 12, the positioning column body 14, the card spring opening piece 25 and the clamping jaw 26, the structure is simple, the manual participation is less, and the automatic feeding, automatic opening and automatic press of the card spring 10 can be realized, the production efficiency is higher; the cooperation of the feeding chute 24 and the feeding push plate 22 can send the card spring 10 to the discharging hole 241 (at this time, the card spring ear 102 of the card spring 10 faces left, and the arc-shaped card spring body 101 faces right), the cooperation of the feeding push plate 22 and the feeding baffle 23 can realize the dynamic fixing of the card spring 10, ensure that the card spring 10 can still maintain a horizontal state when moving above the discharging hole 241, facilitate the positioning column body 14 to pass through the card spring 10 and abut against the card spring opening piece 25, so that the card spring 10 can smoothly fall off and be sleeved on the card spring opening piece 25; the card spring 10 gradually moves down along the card spring opening piece 25 under the action of the discharging pressure pipe, and is gradually opened in the process of moving down, and is immediately sleeved on the card spring groove 92 of the mounting shaft 91 when it is separated from the card spring opening piece 25, the whole opening process is smooth and smooth, realizes the automatic press of the card spring 10, and can also avoid forcibly pressing the card spring 10 into the card spring groove 92 without opening the card spring 10, reduces the damage to the card spring 10 in the press process; the design of the above positioning column body 14 and the lower spring 131 can firmly fix the card spring opening piece 25 between the positioning column body 14 and the mounting shaft 91 during the press and opening of the card spring 10; the design of the clamping jaw 26 can make the card spring opening piece 25 be clamped by the clamping jaw 26 when the card spring 10 is not pressed, and when the card spring 10 moves down and opens, the clamping jaw 26 is rotated outward around the shaft to leave the card spring opening piece 25 by the outer circle of the card spring 10, so that the card spring 10 can slide through the section between the clamping jaw 26 and the card spring opening piece 25, enter the card spring groove 92 on the mounting shaft 91, and complete a cycle; so that the process of pressing and opening the card spring 10 is more stable and smooth, realizes the function of automatically opening and pressing the card spring 10, greatly reduces the participation of manual work, and is helpful to improve the automation level of the card spring press equipment. The card spring 10 involved in the card spring press equipment includes a card spring body 101 and a card spring ear 102, the card spring body 101 has an opening, the two ends of the opening are provided with the card spring ear 102 fixedly connected with the card spring body 101, and the card spring ear 102 is provided with an operation hole 103. When installing the card spring 10, the card spring 10 is first opened, the opening between the two card spring ears 102 becomes larger at this time, and the card spring body 101 is contracted and recovered under the action of its own elasticity after the card spring 10 is installed in place; the left side of the above feeding push plate 22 is provided with a push plate cylinder for driving the feeding push plate 22 to move right.

[0073] As Figure 2 and Figure 4 and Figure 5As shown, the feeding pressure pipe 12 is provided with a guide pipe body 13, the upper end of the feeding pressure pipe 12 is fixedly connected with the driving rod of the pressure pipe driving member 11, the guide pipe body 13 can move along the axial direction relative to the feeding pressure pipe 12, the upper end of the guide pipe body 13 and the driving rod are provided with an upper spring 121 for driving the guide pipe body 13 to move downward, a positioning column body 14 is arranged in the guide pipe body 13 and can move along the axial direction relative to the guide pipe body 13, the upper end of the positioning column body 14 is outwardly formed with a limiting convex ring 141, the upper end of the guide pipe body 13 and the limiting convex ring 141 are provided with a lower spring 131 for driving the positioning column body 14 to move downward, the lower end of the guide pipe body 13 is inwardly formed with a limiting ring 132, the lower side surface of the limiting convex ring 141 can abut against the limiting ring 132, the lower end of the positioning column body 14 can abut against the snap spring opening member 25; the lower end of the positioning column body 14 is reduced in diameter to form an insertion part 142, the snap spring opening member 25 is provided with an insertion slot or an insertion hole 251, the insertion slot or the insertion hole 251 is coaxially arranged with the snap spring opening member 25, the insertion part 142 can be inserted into the insertion slot or the insertion hole 251, the lower end of the insertion part 142 is conical, the lower end of the snap spring opening member 25 is provided with a positioning slot 255 matched with the mounting shaft 91, the mounting shaft 91 can be inserted into the positioning slot 255 and abut against the slot bottom of the positioning slot 255.

[0074] When the positioning cylinder 14 abuts against the card spring prop 25 in the card spring press-fitting equipment, the lower edge of the feeding press pipe 12 is also located above the feeding seat 2, and the feeding press pipe 12 needs a larger stroke to press-fit the card spring 10 into place. If there is only one lower spring 131, the spring needs to be designed to be very long, and it will be compressed very short when the card spring 10 is press-fitted into place. At this time, the force of spring rebound is very large, and the press pipe driving part 11 needs to exert a large force on the press pipe to make the card spring 10 press-fit into place. At the same time, the longer spring is also prone to bending and other phenomena, which affects the normal work of the card spring press-fitting equipment. In order to overcome the above problems existing in the single spring and further improve the stability of the card spring press-fitting equipment during work, a slidable guide pipe body 13 is arranged in the feeding press pipe 12, and then an upper spring 121 is arranged between the upper end of the guide pipe body 13 and the upper end of the feeding press pipe 12, and a lower spring 131 is arranged between the upper end of the guide pipe body 13 and the upper end of the positioning cylinder 14. By arranging two springs, the length of each spring does not need to be too long, and the compression stroke of each spring is also not very long when the feeding press pipe 12 press-fits the card spring 10. The resistance caused by the spring during press-fitting of the card spring 10 is greatly reduced, so that the entire press-fitting process is more stable and smooth. The above insertion part 142 and the insertion slot or insertion hole 251 cooperate, not only can make the connection of the positioning cylinder 14 and the card spring prop 25 more firm, but also can play a positioning role to the card spring prop 25, so that the card spring prop 25 can keep coaxial with the positioning cylinder 14 during press-fitting of the card spring 10. In the unloading hole 241, the card spring 10 clamped by the feeding push plate 22 and the feeding baffle 23 falls on the card spring prop 25 in parallel during the downward movement of the feeding press pipe 12, and does not hang on the top of the card spring prop 25 due to falling deviation, which causes the feeding press pipe 12 to be unable to move downward and affects the assembly effect, thereby helping to improve the yield of the card spring press-fitting equipment. The conical insertion part 142 has a guiding effect, so that the insertion part 142 is more easily inserted into the insertion slot or insertion hole 251. The design of the positioning groove 255 can make the connection of the card spring prop 25 and the mounting shaft 91 more firm. The groove depth of the above positioning groove 255 is close to the distance from the card spring groove 92 to the top of the mounting shaft 91, so as to ensure that the card spring 10 can be directly sleeved in the card spring groove 92 after being separated from the card spring prop 25, and the press-fitting and assembly of the card spring 10 are more stable and smooth.

[0075] As Figures 1-3As shown, the pressing pipe driving member 11 is fixedly connected to the horizontally arranged mounting plate 1, the lower side of the mounting plate 1 is fixedly connected with the vertically arranged guide plate 15, the upper part and the middle part of the upper feeding pressing pipe 12 are axially provided with the guide groove 122, the guide plate 15 is inserted into the guide groove 122, and the upper feeding pressing pipe 12 can move up and down relative to the guide plate 15 under the driving of the pressing pipe driving member 11; the mounting plate 1 is provided with the seat driving member 16 for driving the upper feeding seat 2 to move up and down, the mounting plate 1 is provided with at least three seat guide rods 17, and the upper feeding seat 2 is provided with the seat guide hole 29 matched with the seat guide rods 17. The design of the guide plate 15 and the guide groove 122 can ensure that the upper feeding pressing pipe 12 can move vertically downward along the guide plate 15 during the pressing process. Meanwhile, when the pressing pipe driving member 11 is a gas cylinder, the driving rod of the gas cylinder will slightly rotate during the driving of the upper feeding pressing pipe 12 by the pressing pipe driving member 11, thereby driving the pressing pipe driving member 11 fixedly connected thereto to rotate synchronously. However, it is difficult to make the upper feeding pressing pipe 12 completely perpendicular to the mounting plate 1 or coaxial with the lower feeding hole 241 during the actual assembly process. When the upper feeding pressing pipe 12 rotates by a certain angle following the driving rod, the upper feeding pressing pipe 12 deviates from the center of the lower feeding hole 241. Therefore, the design of the guide plate 15 and the guide groove 122 can also prevent the upper feeding pressing pipe 12 from rotating, thereby avoiding the situation that the upper feeding pressing pipe 12 cannot be aligned with the lower feeding hole 241 due to rotation, thereby effectively avoiding the situation that the snap spring 10 cannot be pressed into place due to the deviation of the upper feeding pressing pipe 12 during the pressing of the snap spring 10, and being beneficial to improve the yield rate of the snap spring pressing equipment after pressing. The cooperation of the seat guide rod 17 and the seat guide hole 29 can ensure that the upper feeding seat 2 always maintains a horizontal state during the upward and downward movement, thereby avoiding the inclination of the upper feeding seat 2 after moving, and being beneficial to further improve the yield rate of the snap spring pressing equipment after pressing. The pressing pipe driving member 11 and the seat driving member 16 can be a gas cylinder or a hydraulic cylinder or other driving devices.

[0076] As Figure 2 , Figure 7 and Figure 8As shown, the right end of the feeding push plate 22 is flat, the left end of the feeding baffle 23 is provided with an arc-shaped groove 231 which cooperates with the arc-shaped outer edge of the snap spring 10, the feeding baffle 23 is fixedly connected with a guide block 234, the left side of the guide block 234 is provided with a left-low right-high inclined guide surface; the right end of the feeding chute 24 is fixedly connected with a baffle positioning block 232, the baffle positioning block 232 and the feeding baffle 23 are provided with a baffle elastic member 233 which drives the feeding baffle 23 to move leftward, the initial position of the left end of the feeding baffle 23 is above the discharging hole 241; the upper side of the feeding seat 2 is fixed with a cover plate 27 which can cover the feeding chute 24 between the feeding column 21 and the baffle positioning block 232, the cover plate 27 is provided with a through hole which is coaxially arranged with the discharging hole 241 and has a diameter greater than that of the feeding pressure pipe 12; the feeding push plate 22 is fixedly connected with a limiting protrusion 221, the feeding seat 2 is fixed with a feeding limiting plate 28 which is arranged at the left side of the feeding column 21, the feeding limiting plate 28 is fixedly connected with a limiting rod 281 and a buffer 282, the left ends of the limiting rod 281 and the buffer 282 can abut against the limiting protrusion 221, the left end of the buffer 282 protrudes from the left end of the limiting rod 281, when the limiting protrusion 221 abuts against the limiting rod 281, the feeding push plate 22 pushes the snap spring 10 to the position directly above the discharging hole 241.

[0077] The arc-shaped groove 231 can make the feeding baffle 23 have a better supporting effect on the circlip 10. The baffle elastic piece 233 cooperates with the feeding baffle 23 to exert a leftward force on the circlip 10 after the circlip 10 contacts the feeding baffle 23, and the force gradually increases as the circlip 10 moves to the right. The process that the circlip 10 gradually moves above the discharging hole 241 after contacting the feeding baffle 23 is a process that the circlip 10 gradually suspends. The force exerted by the feeding baffle 23 on the circlip 10 gradually increases, which can have a high fixing effect on the circlip 10 when the circlip 10 gradually suspends, thereby avoiding the circlip 10 from tilting during the process of moving above the discharging hole 241. In addition, the baffle elastic piece 233 can also buffer the force generated when the circlip 10 contacts the feeding baffle 23, thereby avoiding damage to the circlip 10 caused by rigid contact, solving the problems of difficult fixing and easy damage of the circlip 10 during automatic feeding, and being beneficial to further improving the yield of the circlip press-fitting equipment. The feeding limiting plate 28 and the limiting rod 281 can cooperate to limit the movement of the feeding push plate 22, thereby ensuring that the feeding push plate 22 can stop moving when the circlip 10 is pushed above the discharging hole 241. When the circlip press-fitting equipment works, the limiting protrusion 221 first contacts the buffer 282, and then contacts the limiting rod 281 and stops moving. The buffer 282 can have a good buffering effect, thereby greatly reducing the impact force generated when the limiting protrusion 221 contacts the limiting rod 281, effectively avoiding the vibration of the feeding push plate 22 caused by the large impact force when the limiting protrusion 221 contacts the limiting rod 281. The vibration can cause the circlip 10 to tilt or be damaged. Therefore, the buffer 282 can not only protect the feeding push plate 22, the circlip 10, the limiting protrusion 221 and the limiting rod 281 from being damaged by the large impact force, but also make the circlip 10 tightly contact the groove bottom of the feeding chute 24 during the entire feeding process and always keep a horizontal state, thereby being beneficial to improving the yield of the circlip press-fitting equipment.

[0078] As shown in Figures 1-3 and Figure 9 , the left side of the feeding column 21 is provided with a positioning protrusion 211 cooperating with the circlip 10. The outer end of the positioning protrusion 211 is fixedly connected with a mounting block 212, and the mounting block 212 is fixedly connected with the feeding seat 2. The design of the positioning protrusion 211 can cooperate with the shape of the circlip 10 to realize horizontal positioning of the circlip 10, thereby ensuring that the right end of the circlip 10 is a circular arc segment and the left end is a circlip ear 102 with an operating hole 103 when the circlip 10 falls into the feeding chute 24.

[0079] As shown in Figure 10As shown, the clamping spring expander 25 comprises a first taper section 252, a second taper section 253 and a cylindrical section 254 arranged in sequence from top to bottom, the inclination angle a of the first taper section 252 is greater than the inclination angle β of the second taper section 253, the clamping jaw 26 is two and is symmetrically arranged front and back, the lower end of the clamping jaw 26 is clamped on the outer side wall of the cylindrical section 254, the middle part of the clamping jaw 26 is hinged to the blanking seat, and the upper part of the clamping jaw 26 is connected with a clamping elastic element 261 for driving the lower end of the clamping jaw 26 to rotate inward around the hinge. The above-mentioned three-section design of the clamping spring expander 25 can make the process of expanding the clamping spring 10 more smooth. When the clamping spring 10 has not been expanded and is elastically deformed, the first taper section 252 with a relatively large inclination angle can quickly expand the clamping spring 10 to a certain extent. At this time, the springback force generated by the elastic deformation of the clamping spring 10 is relatively large, and the second taper section 253 with a relatively small inclination angle is used to continue expanding the clamping spring 10, which can avoid the vertical deformation or wear and damage of the clamping spring 10 during the expansion process, and is beneficial to improve the stability of the expansion process. The last cylindrical section 254 is a transition section. When the clamping spring 10 falls onto the clamping spring expander 25, it is sometimes inclined and suspended. During the expansion process of the above-mentioned first taper section 252 and second taper section 253, it gradually approaches the horizontal state under the action of the feeding pressure pipe 12, and then passes through the cylindrical section 254 to make the clamping spring 10 more tend to be horizontally arranged, and finally smoothly separates from the clamping spring expander 25 and is sleeved in the clamping spring groove 92 of the mounting shaft 91; The design of the clamping elastic element 261 does not need an additional power source to drive the clamping jaw 26 to move to clamp the clamping spring expander 25, which is simple in structure and quick in response, and can make the clamping jaw 26 have a good clamping effect on the clamping spring expander 25, avoiding the falling of the clamping spring expander 25.

[0080] As shown in the figure, Figures 12-15 The rotor positioning seat 3 is installed on the supporting plate 4, the supporting plate 4 is provided with a mounting hole 41, the upper end of the mounting hole 41 is provided with a circular step 411, the outer side wall of the rotor positioning seat 3 is fixed with a circular convex ring 31, the circular convex ring 31 can be placed on the circular step 411, the lower end of the rotor positioning seat 3 protrudes from the lower side of the supporting plate 4, and the lower side of the rotor positioning seat 3 is provided with a jacking mechanism 5 capable of driving the rotor positioning seat 3 to separate from the supporting plate 4 and keep horizontal;

[0081] The jacking mechanism 5 comprises a jacking panel 51, a guide positioning block 52, at least three jacking guide rods 53, a jacking cylinder 54, a jacking hinge 58, two jacking connecting rods 57 and a jacking positioning seat 55. The rotor positioning seat 3 is provided with at least three insertion holes 32 in the circumferential direction. The jacking panel 51 is horizontally arranged below the feeding seat 2. The upper side of the jacking panel 51 is fixedly connected with an insertion column 511 which is inserted into the insertion hole 32. The jacking cylinder 54 is arranged below the jacking panel 51 to drive the jacking panel 51 to move up and down. The guide positioning block 52 is fixedly connected with the lower end of the pressing frame. The upper end of the jacking guide rod 53 is fixedly connected with the jacking panel 51, and the lower end is inserted into the guide positioning block 52 and can move up and down relative to the guide positioning block 52. The upper end of one of the jacking connecting rods 57 is hingedly connected with the jacking panel 51, and the lower end of the other jacking connecting rod 57 is hingedly connected with the base 56. The other ends of the two jacking connecting rods 57 are hingedly connected with the jacking hinge 58. The jacking cylinder 54 is transversely arranged on the base 56. The driving rod of the jacking cylinder 54 is connected with the jacking hinge 58 and drives the jacking hinge 58 to move transversely. The jacking positioning seat 55 is fixedly arranged on the base 56. The upper end of the jacking positioning seat 55 can abut against the lower side of the jacking panel 51. The side of the jacking positioning seat 55 is provided with a transverse limiting rod 551 which can abut against the jacking hinge 58 when the two jacking connecting rods 57 are in a straight line.

[0082] The jacking positioning mechanism can lift the rotor positioning seat 3 horizontally to separate it from the supporting plate 4 or to separate it from the conveying track with the supporting plate 4. The conveying track can not affect the rotor positioning seat 3, so that the rotor positioning seat 3 can be kept horizontal. The installation shaft 91 of the outer rotor 9 of the fan can not be inclined due to the inclination of the rotor positioning seat 3. Therefore, the circlip supporting piece 25 can not be connected with the installation seat during the pressing process, the circlip 10 can be inclined relative to the circlip supporting piece 25 during the pressing process, and finally the circlip 10 can not be smoothly inserted into the circlip groove 92 due to the inclination, thereby affecting the yield after pressing.

[0083] The plug hole 32 and the plug column 511 cooperate to horizontally position the rotor positioning seat 3, ensuring that the mounting shaft 91 of the fan outer rotor 9, the blanking hole 241 and the upper material pressing pipe 12 are coaxial during press fitting; the guide positioning block 52 and the jacking guide rod 53 cooperate to prevent the jacking panel 51 from tilting during upward and downward movement; the two jacking connecting rods 57 and the jacking hinge 58 form a two-bar mechanism, which only needs to jack up the rotor positioning seat 3 and / or the supporting plate 4 during operation, and the jacking distance does not need to be too large, and the design of the jacking positioning seat 55 can limit the lowest height of the jacking panel 51, and the extension of the two-bar mechanism cannot be too long, and if the jacking panel 51 is lowered too much, it needs ten times the usual cylinder force to lift it; further, during press fitting, the two jacking connecting rods 57 not only need to bear the weight of the jacking panel 51, the jacking guide rod 53, the supporting plate 4, the rotor positioning seat 3 and the fan outer rotor 9, but also need to bear the pressure applied by the positioning column body 14, so the two jacking connecting rods 57 need to have good supportability, if the two jacking connecting rods 57 are coaxial and in a straight line, the force acting on the jacking connecting rod 57 will not be dispersed horizontally, and the jacking connecting rod 57 will not move horizontally, thereby making the two jacking connecting rods 57 have good supportability; if the two jacking connecting rods 57 are not in a straight line and have an included angle of less than 180° between them, when the positioning column body 14 applies pressure to the fan outer rotor 9, the jacking connecting rod 57 is likely to be pressed to move the jacking hinge 58 in the direction of the jacking cylinder 54, thereby causing the jacking panel 51 to descend, and the supportability of the jacking connecting rod 57 is poor, and the press fitting process is unstable. The upper end of the jacking positioning seat 55 can be provided with a damper 552, thereby playing a buffering role, avoiding hard contact between the jacking panel 51 and the jacking positioning seat 55, and causing damage or deformation of the jacking panel 51 and the jacking positioning seat 55.

[0084] The working principle of the present card spring press fitting equipment is as follows:

[0085] The rotor positioning seat 3 with the fan outer rotor 9 placed therein is driven by the supporting plate 4 to move along the production line to the position directly below the upper material seat 2, the stopper on the production line is started to stop the supporting plate 4 from moving forward, and the jacking mechanism 5 jacks up the supporting plate 4 or the rotor positioning seat 3, so that the supporting plate 4 is separated from the production line;

[0086] The seat driving member 16 drives the upper material seat 2 to move downward, so that the card spring supporting member 25 of the upper material seat 2 abuts against the mounting shaft 91 of the fan outer rotor 9.

[0087] Then the feeding push plate 22 pushes the snap spring 10 in the feeding chute 24 to the right until the snap spring 10 contacts the feeding baffle 23 and continues to move right to above the discharging hole 241 and stops; then the pipe pressing driving part 11 drives the feeding pipe pressing pipe 12 to move down, the positioning column body 14 is first inserted into the snap spring opening part 25 to fix it between the mounting shaft 91 and the positioning column body 14, then the feeding pipe pressing pipe 12 continues to move down and presses the snap spring 10 to make it fall on the snap spring opening part 25; in the process of the feeding pipe pressing pipe 12 moving down, the lower spring 131 is gradually compressed, the feeding pipe pressing pipe 12 continues to press the snap spring 10 downwards, the snap spring 10 gradually moves down along the snap spring opening part 25 and is gradually opened in the process of moving down, at this time the clamping jaw 26 is also opened by the outer circle of the snap spring 10 and is clamped on the snap spring 10 outer circle and the feeding pipe pressing pipe 12 in turn, until the snap spring 10 is separated from the snap spring opening part 25 and is contracted and sleeved on the snap spring groove 92, so that the feeding and pressing of the snap spring 10 are realized.

[0088] Then the feeding pipe pressing pipe 12 moves up and is first separated from the clamping jaw 26, the clamping jaw 26 is clamped on the snap spring opening part 25 again, at this time the positioning column body 14 still abuts against the snap spring opening part 25 and fixes the snap spring opening part 25 between the positioning column body 14 and the mounting shaft 91 due to the action of the lower spring 131, until the feeding pipe pressing pipe 12 moves to the upper side of the feeding seat 2, after the lower spring 131 returns to the initial state, the feeding pipe pressing pipe 12 continues to move up to make the positioning column body 14 separate from the snap spring opening part 25, until the lower end of the positioning column body 14 moves to the upper side of the feeding seat 2, then the feeding push plate 22 moves to the left side of the feeding column 21, the snap spring 10 at the lowermost end of the feeding column 21 falls into the feeding chute 24 again.

[0089] Then the seat driving part 16 drives the feeding seat 2 to move up to make the snap spring opening part 25 separate from the mounting shaft 91.

[0090] Finally the jacking mechanism 5 puts the rotor positioning seat 3 back on the supporting plate 4 to make the supporting plate 4 contact the production line again and sends the fan outer rotor 9 with the snap spring 10 mounted to the next process; then the snap spring pressing equipment repeats the above process.

[0091] The above embodiments are only the preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope defined by the claims of the present application.

Claims

1. A clip spring press fitting apparatus of an outer rotor blower, characterized by: The utility model relates to a kind of outer rotor fan loading device, including rotor positioning seat (3), upper feeding pressure pipe (12), pressure pipe driving element (11), upper feeding seat (2), upper feeding column (21), upper feeding push plate (22) and upper feeding baffle (23), the pressure pipe driving element (11) can drive upper feeding pressure pipe (12) and be pressed into spring (10) on the installation shaft (91) of outer rotor fan placed in rotor positioning seat (3) and descend, the upper feeding seat (2) is provided with upper feeding chute (24) along its length direction, the groove bottom of right part of upper feeding chute (24) is provided with lower hole (241), the lower hole (241), rotor positioning seat (3) and upper feeding pressure pipe (12) are coaxially arranged, the upper feeding column (21) is sequentially sleeved with spring (10) along vertical direction, the upper feeding column (21) and the bottom of upper feeding chute (24) have the clearance of spring (10) thickness, the upper feeding push plate (22) can push spring (10) in clearance to lower hole (241) above along upper feeding chute (24), the upper feeding baffle (23) can be fixed with spring (10) above lower hole (241) with upper feeding push plate (22) cooperation;The lower hole (241) is provided with spring striding element (25) below, the spring striding element (25) is connected with upper feeding seat (2) by the clamping jaw (26) arranged on upper feeding seat (2), the lower spring (131) that the positioning column body (14) and drive positioning column body (14) are moved downward can be slidably arranged in upper feeding pressure pipe (12), the lower end of the positioning column body (14) can be butted with the upper end of spring striding element (25); The upper feeding pressure pipe (12) is provided with guide pipe body (13), the upper end of upper feeding pressure pipe (12) is fixedly connected with the driving rod of pressure pipe driving element (11), the guide pipe body (13) can move along axial direction relative to upper feeding pressure pipe (12), the upper end between the guide pipe body (13) and driving rod is provided with upper spring (121) that drive guide pipe body (13) is moved down, the positioning column body (14) is arranged in guide pipe body (13) and can move along axial direction relative to guide pipe body (13), the upper end of the positioning column body (14) is outwardly formed with limiting convex ring (141), the lower spring (131) that drive positioning column body (14) is moved down is provided between the upper end of guide pipe body (13) and limiting convex ring (141), the lower end of guide pipe body (13) is inwardly formed with limiting ring (132), the lower side surface of limiting convex ring (141) can be abutted with limiting ring (132), the lower end of the positioning column body (14) can be butted with spring striding element (25).

2. The circlip press-fitting device of the outer rotor fan according to claim 1, characterized in that: The lower end of the positioning column (14) is reduced in diameter to form an insertion part (142), the snap spring prop (25) is provided with an insertion slot or insertion hole (251), the insertion slot or insertion hole (251) is coaxially arranged with the snap spring prop (25), the insertion part (142) can be inserted into the insertion slot or insertion hole (251), the lower end of the insertion part (142) is conical, the lower end of the snap spring prop (25) is provided with a positioning slot (255) matched with the mounting shaft (91), the mounting shaft (91) can be inserted into the positioning slot (255) and abut against the bottom of the positioning slot (255).

3. The circlip press-fitting device of an outer rotor fan according to claim 1, characterized in that: The pipe pressing driving part (11) is fixedly connected to the horizontally arranged mounting plate (1), the lower side of the mounting plate (1) is fixedly connected with the vertically arranged guide plate (15), the upper part and the middle part of the upper feeding pipe (12) are provided with guide grooves (122) arranged in the axial direction, the guide plate (15) is inserted into the guide grooves (122), and the upper feeding pipe (12) can move up and down relative to the guide plate (15) under the driving of the pipe pressing driving part (11); the mounting plate (1) is provided with a seat driving part (16) for driving the upper feeding seat (2) to move up and down, and the mounting plate (1) is provided with at least three seat guide rods (17), and the upper feeding seat (2) is provided with seat guide holes (29) matched with the seat guide rods (17).

4. The circlip press-fitting device of an outer rotor fan according to any one of claims 1 to 3, characterized in that: The right end of the upper feeding push plate (22) is flat, the left end of the upper feeding baffle (23) is provided with an arc-shaped groove (231), the arc-shaped groove (231) is matched with the arc-shaped outer edge of the snap spring (10), the upper feeding baffle (23) is fixedly connected with a guide block (234), and the left side of the guide block (234) is provided with a guide surface arranged in a left-low-right-high inclined mode; the right end of the upper feeding chute (24) is fixedly connected with a baffle positioning block (232), a baffle elastic element (233) for driving the upper feeding baffle (23) to move leftward is arranged between the baffle positioning block (232) and the upper feeding baffle (23), and the initial position of the left end of the upper feeding baffle (23) is located above the discharging hole (241); the upper side of the upper feeding seat (2) is fixedly connected with a cover plate (27), the cover plate (27) can cover the upper feeding chute (24) between the upper feeding column (21) and the baffle positioning block (232), the cover plate (27) is provided with a through hole coaxially arranged with the discharging hole (241), and the diameter of the through hole is greater than the diameter of the upper feeding pipe (12).

5. The circlip press-fitting device of the outer rotor fan according to claim 4, characterized in that: The upper feeding push plate (22) is fixedly connected with a limiting protrusion (221), the upper feeding seat (2) is fixedly connected with an upper feeding limiting plate (28), the upper feeding limiting plate (28) is arranged on the left side of the upper feeding column (21), the upper feeding limiting plate (28) is fixedly connected with a limiting rod (281) and a buffer (282), the left ends of the limiting rod (281) and the buffer (282) can abut against the limiting protrusion (221), the left end of the buffer (282) protrudes from the left end of the limiting rod (281), and when the limiting protrusion (221) abuts against the limiting rod (281), the upper feeding push plate (22) pushes the clamping spring (10) to be directly above the lower feeding hole (241).

6. The circlip press-fitting device of an outer rotor fan according to any one of claims 1 to 3, characterized in that: The left side of the upper feeding column (21) is provided with a positioning protruding strip (211) matched with the clamping spring (10), and the outer end of the positioning protruding strip (211) is fixedly connected with a mounting block (212), and the mounting block (212) is fixedly connected with the upper feeding seat (2).

7. The circlip press-fitting device of an outer rotor fan according to any one of claims 1 to 3, characterized in that: The clamping spring opening member (25) comprises a first taper section (252), a second taper section (253) and a cylindrical section (254) arranged in sequence from top to bottom, the inclination angle α of the first taper section (252) is greater than the inclination angle β of the second taper section (253), the clamping jaw (26) is two and is symmetrically arranged front and back, the lower end of the clamping jaw (26) is clamped on the outer side wall of the cylindrical section (254), the middle part of the clamping jaw (26) is hingedly connected with the lower feeding seat, and the upper part of the clamping jaw (26) is connected with a clamping elastic member (261) for driving the lower end of the clamping jaw (26) to rotate inward around the hinge.

8. The circlip press-fitting device of an outer rotor fan according to any one of claims 1 to 3, characterized in that: The rotor positioning seat (3) is installed on the supporting plate (4), the supporting plate (4) is provided with a mounting hole (41), the upper end of the mounting hole (41) is provided with a circular step (411), the outer side wall of the rotor positioning seat (3) is fixedly connected with a circular protruding ring (31), the circular protruding ring (31) can be placed on the circular step (411), the lower end of the rotor positioning seat (3) protrudes from the lower side of the supporting plate (4), and a jacking mechanism (5) is arranged below the rotor positioning seat (3) and can drive the rotor positioning seat (3) to be separated from the supporting plate (4) and kept in a horizontal state.

9. The circlip press-fitting apparatus of an outer rotor fan according to claim 8, characterized in that: The jacking mechanism (5) comprises a jacking panel (51), a guide positioning block (52), at least three jacking guide rods (53), a jacking cylinder (54), a jacking hinge (58), two jacking connecting rods (57) and a jacking positioning seat (55), at least three insertion holes (32) are arranged on the rotor positioning seat (3) in a circumferential direction, the jacking panel (51) is arranged horizontally and below the feeding seat (2), the upper side of the jacking panel (51) is fixedly connected with an insertion column (511) which is inserted into the insertion hole (32), the jacking cylinder (54) is arranged below the jacking panel (51) to drive the jacking panel (51) to move up and down; the guide positioning block (52) is fixedly connected with the lower end of the press-fitting frame body, the upper end of the jacking guide rod (53) is fixedly connected with the jacking panel (51), the lower end is inserted into the guide positioning block (52) and can move up and down relative to the guide positioning block (52); the upper end of one of the jacking connecting rods (57) is hingedly connected with the jacking panel (51), the lower end of the other jacking connecting rod (57) is hingedly connected with the base (56), the other ends of the two jacking connecting rods (57) are hingedly connected with the jacking hinge (58), the jacking cylinder (54) is transversely installed on the base (56), the driving rod of the jacking cylinder (54) is connected with the jacking hinge (58) and drives the jacking hinge (58) to move transversely, the jacking positioning seat (55) is fixed on the base (56), the upper end of the jacking positioning seat (55) can abut against the lower side of the jacking panel (51), the side of the jacking positioning seat (55) is provided with a transverse limiting rod (551), and the transverse limiting rod (551) can abut against the jacking hinge (58) when the two jacking connecting rods (57) are in a straight line.

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