CN110762128A - Assembly machine for assembling tiny bearing - Google Patents

Abstract

The invention relates to the field of bearing assembly, and discloses an assembly machine for assembling a miniature bearing, which is used for assembling the miniature bearing and comprises a turntable, wherein a plurality of positioning mechanisms for positioning parts are arranged on the turntable, a plurality of stations are arranged around the turntable, and the stations comprise an outer ring assembly station, an inner ring assembly station, a retainer assembly station, a ball assembly station and an inner cover assembly station; the outer ring assembly station, the inner ring assembly station, the retainer assembly station, the ball assembly station and the inner cover assembly station all comprise a part carrying mechanism and a part feeding mechanism, the carrying mechanism transports parts of the part feeding mechanism to the positioning mechanism for assembly, and the part assembly sequence is that the inner ring, the outer ring, the retainer, the balls and the inner cover are sequentially arranged. The assembling mechanism has the advantages of simple assembly, high production efficiency and the like.

Description

Assembly machine for assembling tiny bearing

Technical Field

The invention relates to the field of component assembly, in particular to an assembly machine for assembling a micro bearing.

Background

Chinese patent 201710121202.5 discloses a steel ball assembly mechanism of a full-automatic linear bearing assembly machine, which has a simple structure, can accurately control the number of steel balls assembled into a linear bearing, realizes full-automatic accurate assembly of the steel balls in the linear bearing, is efficient and accurate, saves labor, improves production efficiency, and can produce 3000-4000 parts per shift at 8 hours.

However, in the field of precision parts, the conventional bearing assembling device cannot be assembled at all due to the small size of the bearing. The applicant provides an assembling machine for assembling a tiny bearing according to the defects of small size, light weight, inconvenience in manual operation and assembly and the like of precision parts.

Disclosure of Invention

Aiming at the defects that the miniature bearing is inconvenient to assemble and cannot be assembled automatically in the prior art, the invention provides the assembling machine for assembling the miniature bearing.

In order to solve the technical problem, the invention is solved by the following technical scheme:

the assembling machine for assembling the tiny bearing comprises a rotary table, wherein a plurality of positioning mechanisms for positioning parts are arranged on the rotary table, a plurality of stations are arranged around the rotary table, and the stations comprise an inner ring assembling station, a ball assembling station and an inner cover assembling station; the inner ring assembling station, the ball assembling station and the inner cover assembling station all comprise a part carrying mechanism and a part feeding mechanism, the part carrying mechanism conveys parts of the part feeding mechanism to the positioning mechanism for assembling, and the parts are sequentially arranged into an inner ring, an outer ring, a retainer, balls and an inner cover in the assembling sequence.

Preferably, the turntable is provided with a plurality of positioning mechanisms, and the number of the positioning mechanisms is equal to the number of the stations and corresponds to the stations one by one; the positioning mechanism comprises a base, the base is fixedly arranged on the turntable, a positioning pin for positioning parts is arranged on the base, the shape of the end part of the positioning pin is matched with the shape of the parts, a sliding rail is arranged on the base, two sliding assemblies capable of sliding along the sliding rail are arranged on the sliding rail and are defined as a first sliding assembly and a second sliding assembly, an adjusting opening is formed when the first sliding assembly and the second sliding assembly are close to each other, and the adjusting opening and the positioning pin are arranged coaxially; a first push arm is arranged on the first sliding component, a second push arm is arranged on the second sliding component, the first push arm is hinged with the first sliding component, and the second push arm is hinged with the second sliding component; the first pushing arm and the second pushing arm can rotate around the connecting shaft, and when the connecting shaft moves along a straight line, the first pushing arm and the second pushing arm are driven to synchronously rotate around the connecting shaft.

Preferably, the base is further provided with a guide sliding groove, the lower end of the connecting shaft is installed in the guide sliding groove and can slide along the guide sliding groove, a return spring is connected between the first sliding assembly and the second sliding assembly, the transverse distance from the connecting shaft to the first sliding assembly and the transverse distance from the connecting shaft to the second sliding assembly are the same all the time, the side faces of the ends, close to the connecting shaft, of the first push arm and the second push arm are provided with round corners, and the first sliding assembly and the second sliding assembly are formed by matching of a sliding block and an installation plate installed on the sliding block.

Preferably, the device also comprises an opening mechanism, the opening mechanism is arranged on the turntable and is arranged at one end close to the connecting shaft, the opening mechanism comprises a telescopic push block, and the push block can act on the connecting shaft or the first push arm or the second push arm to push the connecting shaft to move along a straight line; the opening mechanism is a cylinder, and the push block is arranged on a telescopic part of the cylinder.

Preferably, the structure of the part assembling mechanism and the part conveying mechanism of the inner ring assembling station, the inner ring assembling station and the inner cover assembling station is the same; the part carrying mechanism comprises a first mounting frame, an output mechanism and a horizontal moving assembly are mounted on the first mounting frame, a vertical moving assembly capable of moving along the vertical direction is mounted on the horizontal moving assembly, one end of the vertical moving assembly is connected with the output end of the output mechanism, when the output mechanism drives the vertical moving assembly to move up and down, the vertical moving assembly drives the left and right moving assembly to move left and right, a grabbing mechanism is mounted on the vertical moving assembly, and the horizontal moving assembly comprises a first guide rail arranged in the horizontal direction and a first sliding block mounted on the first guide rail and capable of sliding along the first guide rail; the vertical moving assembly comprises a second guide rail arranged in the vertical direction, the second guide rail is installed on the first slider and can slide up and down along the first slider, the upper end of the second guide rail is connected with the output mechanism, the output mechanism comprises a power portion and a rotating arm, the power portion can drive the rotating arm to rotate, one end of the rotating arm is connected with a connecting column, and the connecting column is connected with the vertical moving assembly.

Preferably, the output mechanism comprises a power part and a rotating arm, the power part can drive the rotating arm to rotate, one end of the rotating arm is connected with a connecting column, the connecting column is connected with the vertical moving assembly, a U-shaped track groove with a downward integral opening is mounted on the first mounting frame, the connecting column is mounted in the track groove, and when the power part drives the rotating arm to rotate, the connecting column moves along the track of the track groove; the output mechanism comprises a power part which is a hollow rotating platform or a motor.

Preferably, the grabbing mechanism is a vacuum adsorption device which comprises a vacuum suction head, the lower end of the vacuum suction head is provided with an adsorption port, the vacuum suction head is of a hollow structure, the lower end of the vacuum suction head is a sealing cover, the sealing cover is provided with a plurality of adsorption ports, the adsorption ports are communicated to the hollow structure in the vacuum suction head, and the first guide rail is provided with a limit switch.

Preferably, the part feeding mechanism comprises a feeding disc, the feeding disc is connected with a dislocation feeding mechanism, and the dislocation feeding mechanism separates materials from the feeding disc; the dislocation separation mechanism comprises a sliding part, a first material port for containing materials is formed in the sliding part, the sliding part can slide to enable the first material port to be connected with an upper charging tray to separate the materials in the upper charging tray, the upper charging tray is a vibrating tray and comprises a discharging track, the discharging track is connected to a dislocation feeding structure, the dislocation separation mechanism is a sliding table cylinder, a sliding block is installed on the sliding part of the sliding table cylinder, and the first material port is formed in the sliding block; the sliding part can drive the first material opening to be communicated with the discharging track, and an optical fiber detection sensor is installed on the inner wall of the first material opening.

Preferably, the ion wind device is arranged on the feeding disc, the feeding disc is a vibrating disc, and the outlet track of the retainer is obliquely arranged;

or in the material feeding process, more balls are firstly contained in the feeding disc, the balls cover the upper part of the first material port, and at the moment, a piston rod or other moving parts which drive the first material port to move up and down are positioned at a lower position; then lift cylinder drives first material mouth upward movement, and the intraoral ball of first material is upwards lifted up to hold up the intraoral ball of first material and separate with other balls, wait for handling mechanism to carry.

Preferably, the grabbing mechanism comprises a mounting plate, a telescopic cylinder is arranged on the mounting plate, a connecting rod is hinged to the mounting plate, the middle of the connecting rod is connected to the mounting plate through a rotating shaft, one end of the connecting rod is connected with the telescopic end of the telescopic cylinder, the other end of the connecting rod is connected with a second vacuum adsorption device, and the second vacuum adsorption device comprises a third adsorption head; still including the adjustment frame, be provided with the adjustment seat on the adjustment frame, the mechanism that snatchs of left end transports the material to the adjustment seat from feed mechanism, and the mechanism that snatchs of right-hand member transports the material on the adjustment seat to positioning mechanism.

Due to the adoption of the technical scheme, the invention has the following remarkable technical effects:

the automatic device designed by the invention can be used for automatically assembling the miniature bearing and has the advantages of stable and reliable assembling process, high production efficiency and the like. The feeding device and the carrying device designed at the same time are simple to feed and can be matched with parts of different sizes and shapes.

Drawings

Fig. 1 is a schematic view of the overall structure of the apparatus.

FIG. 2 is a schematic view of a component conveying mechanism

FIG. 3 is a schematic view of a feeding mechanism of inner ring, outer ring and inner cover assembling stations.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a schematic structural diagram of the ball feeding mechanism.

Fig. 6 is a schematic view of the overall structure of the device.

Fig. 7 is a partially enlarged view of fig. 6.

Fig. 8 is a schematic view of a cage loading mechanism.

Fig. 9 is a schematic structural view of the positioning mechanism.

Fig. 10 is a partially enlarged view of fig. 9.

Fig. 11 is a schematic structural diagram of the outer ring of the part grabbed by the grabbing mechanism.

FIG. 12 is a schematic view of the vacuum chuck of the gripping mechanism, which is adapted to grip the inner race, the cage, the balls, and the inner cap.

The names of the parts indicated by the numerical references in the drawings are as follows: 100-loading tray, 101-sliding part, 102-first material port, 103-discharging rail, 104-sliding table cylinder, 105-ion wind device, 106-retainer outlet rail, 107-lifting cylinder, 200-base, 201-positioning pin, 202-sliding rail, 203-first sliding component, 204-second sliding component, 205-adjusting port, 206-first push arm, 207-second push arm, 208-connecting shaft, 209-guide sliding chute, 210-return spring, 211-opening mechanism, 212-push block, 300-first mounting rack, 301-output mechanism, 302-grabbing mechanism, 303-first guide rail, 304-second guide rail, 305-first sliding block, 306-power part, 307-rotating arm, 308-connecting column, 309-rail groove, 310-vacuum suction head, 311-suction port, 312-limit switch, 313-rotating disk, 400-inner ring assembling station, 401-inner ring assembling station, 402-retainer assembling station, 403-ball assembling station, 404-inner cover assembling station, 430-part conveying mechanism, 431-feeding mechanism and 432-positioning mechanism.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The assembling machine for assembling the micro bearing comprises a rotating disc 313, wherein a plurality of positioning mechanisms 432 for positioning parts are arranged on the rotating disc 313, a plurality of stations are arranged around the rotating disc 313, and the stations comprise an outer ring assembling station 400, an inner ring assembling station 401, a retainer assembling station 402, a ball assembling station 403 and an inner cover assembling station 404; the outer ring assembling station 400, the inner ring assembling station 401, the retainer assembling station 402, the ball assembling station 403 and the inner cover assembling station 404 all comprise a part conveying mechanism 430 and a part feeding mechanism 431, the conveying mechanism conveys parts of the part feeding mechanism 431 to a positioning mechanism 432 for assembling, and the part assembling sequence sequentially comprises an outer ring, an inner ring, a retainer, balls and an inner cover. The miniature bearing used for assembling the watch in the embodiment comprises an inner ring, an outer ring, a retainer, balls and an inner cover. The device also comprises a material existence detection station 480; the material presence/absence detecting station 480 is provided between the inner ring assembling station 401 and the cage assembling station 402, and between the cage assembling station 402 and the ball assembling station 403.

The positioning mechanism 432 in this embodiment includes a turntable 313, a plurality of positioning mechanisms 432 are provided on the turntable 313, and the number of the positioning mechanisms 432 is equal to the number of the stations and corresponds to one another; the positioning mechanism 432 comprises a base 200, the base 200 is fixedly installed on the turntable 313, a positioning pin 201 for positioning a part is arranged on the base 200, and the shape of the end of the positioning pin 201 is matched with the shape of the part. In this embodiment, the positioning pin 201 is used as an installation reference of the inner ring to ensure that the inner ring can be limited on the positioning pin 201, and meanwhile, the positioning pin 201 plays a role in ensuring that each part is located on the same axis, so as to ensure that the assembling process is smoothly performed.

In the present embodiment, a slide rail 202 is disposed on the base 200, and the slide rail 202 and the base 200 are connected by a bolt. Two sliding components which can slide along the sliding rail 202 are arranged on the sliding rail 202 and are defined as a first sliding component 203 and a second sliding component 204, an adjusting opening 205 is formed when the first sliding component 203 and the second sliding component 204 are close to each other, the positioning pin 201 is wrapped in the adjusting opening 205, and the adjusting opening 205 and the positioning pin 201 are arranged coaxially. Adopt this kind of device can guarantee that locating pin 201 both sides adjusting device is stable simultaneously opens and closes, and the phenomenon of falling appears hitting the spare part on locating pin 201 when avoiding appearing rhythm inconsistent, but the device self-closing moreover guarantees that carousel 313 spare part can not drop from locating pin 201 when rotating, and the assembly of other spare parts of being convenient for is also pressed from both sides tight spare part simultaneously.

Wherein the first sliding component 203 is provided with a first push arm 206, the second sliding component 204 is provided with a second push arm 207, the first push arm 206 is hinged with the first sliding component 203, and the second push arm 207 is hinged with the second sliding component 204; the first push arm 206 and the first sliding member 203, the second push arm 207 and the second sliding member 204 are connected by a hinge shaft, so that the first push arm 206 can rotate around the hinge shaft on the first sliding member 203, not shown, and the second push arm 207 can rotate around the hinge shaft on the second sliding member 204, not shown.

The whole device further comprises a connecting shaft 208, the other ends of the first push arm 206 and the second push arm 207 are connected through the connecting shaft 208, the first push arm 206 and the second push arm 207 can rotate around the connecting shaft 208, and when the connecting shaft 208 moves along a straight line, the first push arm 206 and the second push arm 207 are driven to synchronously rotate around the connecting shaft 208. The structure has the characteristic of stable operation, and the synchronism of the first sliding block 305 and the second sliding block is ensured through the coaxially arranged first push arm 206 and the second push arm 207.

In order to ensure that the connecting shaft 208 can stably slide along the linear direction, in this embodiment, the base 200 is further provided with a guide sliding groove 209, and the lower end of the connecting shaft 208 is installed in the guide sliding groove 209 and can slide along the guide sliding groove 209. The guide groove can ensure that the connecting shaft 208 can move along the guide sliding groove 209, and ensure the stability of the movement of the connecting shaft 208, thereby ensuring the stability of the sliding of the first sliding assembly 203 and the second sliding assembly 204. Be connected with return spring 10 between first slip subassembly 203 and the second slip subassembly 204, it is specifically that first slip subassembly 203 is last to install and to insert the post, installs on the second slip subassembly 204 and inserts the post, and return spring 10's both ends cover is established on first slip subassembly 203 and second slip subassembly 204 insert the post not shown, for the stability of guaranteeing the return process, return spring 10 parallel slide rail 202 sets up. The return spring 10 maintains the first slider assembly 203 and the second slider assembly 204 in a clamped state. Meanwhile, the return spring 10 simultaneously exerts a force to return to the original state when the first sliding member 203 and the second sliding member 204 are moved toward each other to be in the open state, so that the self-return function can be realized.

In this embodiment, the transverse distance from the connecting shaft 208 to the first sliding assembly 203 and the transverse distance from the connecting shaft 208 to the second sliding assembly 204 are always the same, the side surfaces of the ends of the first pushing arm 206 and the second pushing arm 207 close to the connecting shaft 208 are provided with rounded corners, and each of the first sliding assembly 203 and the second sliding assembly 204 is composed of a sliding block and a mounting plate 420 mounted on the sliding block, because the sliding block and the sliding rail 202 are sold as matched parts.

The device is used as follows:

in the initial state, the first slide assembly 203 and the second slide assembly 204 are in the closed state under the action of the return spring 10.

When the feeding is needed, the connecting shaft 208 or the first pushing arm 206 or the second pushing arm 207 is pushed, at this time, an included angle between the first pushing arm 206 and the second pushing arm 207 is increased, the connecting shaft 208 moves towards the positioning pin 201 along the guide sliding groove 209, the spring is in a stretching state, the first pushing arm 206 and the second pushing arm 207 simultaneously push the first sliding assembly 203 and the second sliding assembly 204 to move towards each other, so that the adjusting opening 205 is opened, then the material falls onto the positioning pin 201, and then the external force is removed, the first sliding assembly 203 and the second sliding assembly 204 return to the initial position under the action of the return spring 10, meanwhile, the connecting shaft 208, the first push arm 206 and the second push arm 207 also return to the initial positions, and the first sliding assembly 203 and the second sliding assembly 204 clamp the parts while adjusting the positions of the parts through the adjusting openings 205, so that the parts are prevented from falling off in the subsequent assembly work.

The positioning mechanism 432 designed by the invention not only can play a role in positioning parts, but also can adjust the positions of the parts on the positioning pins 201, so that the coaxiality of the parts is ensured, and meanwhile, the clamped parts can meet the assembly strength of subsequent stations, and the parts can not collapse in the whole assembly process.

The positioning mechanism 432 disclosed in this embodiment further includes an opening mechanism 11, the opening mechanism 11 is configured to apply an external force to the first pushing arm 206 or the second pushing arm 207 or the connecting shaft 208 to enable the first sliding component 203 and the second sliding component 204 to move towards each other to open the adjustment opening 205, the opening mechanism 11 is disposed at an end close to the connecting shaft 208, the opening mechanism 11 includes a retractable pushing block 21212, and the pushing block 21212 can act on the connecting shaft 208 or the first pushing arm 206 or the second pushing arm 207 to push the connecting shaft 208 to move along a straight line. The opening mechanism 11 is a cylinder, the push block 21212 is mounted on an expansion part of the cylinder, the cylinder in this embodiment is a plunger cylinder, and the push block 21212 is mounted on a piston rod of the cylinder.

In this embodiment, when the outer ring assembling station 400 and the inner ring assembling station 401 are in use, the opening station opens and adjusts the positions of the inner ring and the outer ring, the opening mechanism 11 does not work in the retainer, the balls, and the inner cover assembling station 404, and the positioning mechanism 432 is in a clamping state at this time, so that stable installation of each component is ensured.

In the present embodiment, the component mounting mechanisms and the component conveying mechanism 430 of the outer ring mounting station 400, the inner ring mounting station 401, and the inner lid mounting station 404 are identical in structure.

This transport mechanism includes first mounting bracket 300, installs output mechanism 301 on first mounting bracket 300, installs the horizontal migration subassembly on first mounting bracket 300, installs the vertical migration subassembly that can follow vertical direction and remove on the horizontal migration subassembly, and in this embodiment, output mechanism 301 and horizontal migration subassembly, vertical migration subassembly set up in the both sides of first mounting bracket 300, and first mounting bracket 300 is the setting of direction about being. One end of the vertical moving assembly is connected with the output end of the output mechanism 301, when the output mechanism 301 drives the vertical moving assembly to move up and down, the vertical moving assembly drives the left-right moving assembly to move left and right, the grabbing mechanism 302 is installed on the vertical moving assembly, the carrying mechanism uses one output end to realize the movement of the workpiece in the up-down direction and the left-right direction, the use of parts is saved, and the operation is more stable.

In this embodiment, the horizontal moving assembly includes a first guide rail 303 disposed in a horizontal direction and a first slider 305 mounted on the first guide rail 303 to be slidable along the first guide rail 303; the vertical moving assembly includes a second guide rail 304 vertically disposed, the second guide rail 304 is mounted on the first slider 305 and can slide up and down along the first slider 305, and the upper end of the second guide rail 304 is connected to the output mechanism 301. It is obvious that the first slide block 305 and the second guide rail 304 cooperate with each other, and the first slide block 305 limits the first guide rail 303, so as to prevent the second guide rail 304 from falling off from the first slide block 305 or shaking.

Include power portion 306 and swinging boom 307 in this embodiment output mechanism 301, power portion 306 can drive swinging boom 307 and rotate, the one end of swinging boom 307 is connected with spliced pole 308, spliced pole 308 is connected with vertical removal subassembly, wherein power portion 306 chooses for use cavity rotary platform, cavity rotary platform collection high work efficiency, high accuracy, high rigidity, high performance price ratio is integrative, in this embodiment, cavity rotary platform can be stable, reliable transport spare part to assembly end from material transportation end, for traditional spare part conveyer, the device can not move stably, scram and sudden rise can not appear, the less and lighter spare part of especially adapted transportation, can lead to spare part position to change or even drop because rock, thereby influence the assembly.

The first mounting frame 300 is provided with a U-shaped track groove 309 with a downward opening, the connecting column 308 is installed in the track groove 309, and when the power part 306 drives the rotating arm 307 to rotate, the connecting column 308 moves along the track of the track groove 309. In this embodiment, an assembly port is formed at one end of the rotating arm 307 connected to the connection column 308, the connection column 308 is inserted into the assembly port, and relative rotation between the connection column 308 and the assembly port can be realized, so that a phenomenon of locking between the connection column 308 and the rotating arm 307 is avoided.

The specific connection mode may be that a gap exists between the assembly opening and the connection column 308, so as to ensure that the assembly opening is not jammed with the connection column 308, or that a bearing is installed in the assembly opening, and the connection column 308 is assembled in an inner ring of the bearing, which has many implementation methods, and this embodiment is not limited herein.

In this embodiment, the gripping mechanism 302 is a vacuum suction device, the vacuum suction device is mounted at the lower end of the second guide rail 304, the vacuum suction device includes a mounting plate 420, and a vacuum suction head 310 and an air pipe mounted on the mounting plate 420, the air pipe is connected with the vacuum suction head 310 by air path to provide suction power for the vacuum suction head 310. The vacuum suction head 310 is a pipe fitting with a hollow structure, the lower end of the vacuum suction head 310 is a sealing cover, a plurality of adsorption ports 311 are arranged on the sealing cover, the adsorption ports 311 are communicated with the hollow structure in the vacuum suction head 310, and an air pipe is communicated with the cavity in the pipe of the vacuum suction head 310. Wherein the suction ports 311 are arranged in a circumferential array, thereby ensuring uniform suction at the lower end of the vacuum chuck 310.

In order to control the start and stop of the hollow rotating platform, the first guide rail 303 is provided with a limit switch 312 for limiting the sliding stroke of the first slider 305.

The working process of the conveying mechanism is as follows, firstly, a feeding device is arranged on the left side of the conveying mechanism, and an assembling device is arranged on the right side of the conveying mechanism. When the device works, the hollow rotary platform rotates anticlockwise to drive the rotating arm 307 to rotate synchronously, the rotating arm 307 drives the connecting column 308 to move along the track groove 309, the connecting column 308 drives the second guide rail 304 to move upwards and downwards, and simultaneously drives the first guide rail 303 to move towards the left end, so that the vacuum suction head 310 moves to the left end, meanwhile, the position of the vacuum suction head 310 is close to the lower end to perform vacuum adsorption on parts provided by the feeding mechanism 431, then the hollow rotary platform rotates clockwise to transport the parts to the lower right end, the vacuum adsorption device cuts off vacuum, and the parts fall onto the positioning pins 201 of the positioning mechanism 432 or fall into the adjusting openings 205. It should be noted that the shape of the end of the vacuum cleaner head 310 may be adjusted to suit the particular shape of the various components and will not be described in detail herein.

Wherein the vacuum on the vacuum adsorption device depends on the limit switch 312 at the left end, and the limit switch 312 at the right end depending on the vacuum is cut off.

In order to clearly illustrate the technical solution of the present embodiment, the following describes the feeding mechanism 431 of the component. First, an inner ring feeding mechanism 431, an outer ring feeding mechanism 431, and an inner lid feeding mechanism 431 are explained.

The part feeding mechanism 431 comprises a feeding tray 1, the feeding tray 1 is connected with a dislocation feeding mechanism 431, and the dislocation feeding mechanism 431 separates materials from the feeding tray 1; the dislocation separating mechanism comprises a sliding part 2, a first material opening 102 used for containing materials is formed in the sliding part 2, and the sliding part 2 can slide to enable the first material opening 102 to be connected with an upper material tray 1 and separate the materials in the upper material tray 1. The feeding tray 1 is a vibrating tray, the feeding tray 1 comprises a first discharging rail 103, the first discharging rail 103 is connected to a dislocation feeding structure, the dislocation separation mechanism is a sliding table cylinder 104, a sliding block is arranged on a sliding part 2 of the sliding table cylinder 104, and a first material port 102 is arranged on the sliding block; the sliding part 2 can drive the first material port 102 to communicate with the first material outlet rail 103.

It should be noted that the slide cylinder has two stations, one station being for transporting the first material port 102 to

First ejection of compact track 103, another station is transported first material mouth 102 to and is snatched the station, and the grabbing device of being convenient for snatchs, and wherein first material mouth 102 relies on first ejection of compact track 103 tip to slide to guarantee that the material can not follow first material mouth 102 and open the department border and drop.

Wherein install optical fiber detection sensor on the inner wall of first material mouth 102, optical fiber sensor is used for detecting whether there is the material to get into in the first material mouth 102, if have then slip table cylinder 104 motion, makes first material mouth 102 break away from with first ejection of compact track 103 be connected the material transportation to snatching the station, and the sliding part 2 of slip table waits for first material mouth 102 return to the shutoff of the port of first ejection of compact track 103 this moment. In this embodiment, the first material port 102 has an arch-shaped cross section.

The feeding mechanism 431 of the holder assembly station 402 is different in that a dislocation separation mechanism is not used, the ion wind device 105 is installed on the charging tray 1, and the ion wind assembly can ensure that static electricity cannot be generated between materials. Guarantee the stable transport of material, simultaneously in the implementation, in order to guarantee that the material can transport on the track steadily, prevent that stack from breaking away from the track appears in thin slice class spare part, so second ejection of compact track 103 is the slope setting.

Compared with the above-mentioned component carrying mechanism 430, the component carrying mechanism 430 matched with the retainer is improved as follows, the improved part focuses on the design of the grabbing mechanism 302, the number of the grabbing mechanisms 302 is two, the grabbing mechanism 302 at the left end comprises a mounting plate 420, a telescopic cylinder 421 is arranged on the mounting plate 420, a connecting rod 422 is hinged on the mounting plate 420, the middle part of the connecting rod 422 is connected to the mounting plate 420 through a rotating shaft, one end of the connecting rod 422 is connected with the telescopic end of the telescopic cylinder 421, the other end of the connecting rod 422 is connected with a second vacuum adsorption device, and the second vacuum adsorption device comprises a third adsorption head 450; still include the adjustment frame, be provided with adjustment seat 460 on the adjustment frame, the mechanism that snatchs of left end transports the material to adjustment seat 460 from feed mechanism, and the mechanism that snatchs of right-hand member transports the material on the adjustment seat 460 to positioning mechanism. When the materials need to be grabbed, the matched retainer is arranged in an inclined mode, so when the materials are grabbed, the part carrying mechanism 430 moves the grabbing mechanism 302 at the left end to the feeding mechanism 431, the grabbing mechanism 302 at the right end moves to the adjusting seat 460, then the telescopic cylinder 421 moves downwards to drive the connecting rod 422 to rotate, so that the vacuum adsorption device is driven to be arranged in an inclined mode, the retainer is grabbed vertically, then the telescopic cylinder 421 returns, finally the material line is transported to the adjusting seat 460 to adjust the position, and meanwhile the grabbing mechanism 302 at the right end transports the retainer on the adjusting table to the positioning mechanism 432. Wherein a machine vision device 461 for detecting whether a retainer is arranged on the adjusting seat 460 is arranged above the adjusting seat 460.

Because the number of ball is a plurality of, and for the globular unable accurate material loading of accomplishing of foretell feed mechanism 431 that adopts, this embodiment designs a neotype feed mechanism 431 according to the characteristics of ball, this feed mechanism 431's dislocation feed mechanism 431 sets up in the bottom of charging tray 1, dislocation feed mechanism 431 includes lift cylinder 107, lift cylinder 107's output is connected with second adsorption head 108, first material mouth 102 is seted up on second adsorption head 108, the bottom of charging tray 1 is seted up by having the passway, second adsorption head 108 is pegged graft in the passway, the lateral wall of second adsorption head 108 and the inner wall sealing contact of passway. In this embodiment, the number of the balls required by the bearing is 5, so the number of the first material ports 102, which are the vacuum suction ports 311, is 5, and the first material ports are circumferentially arrayed along the circumferential direction of the second suction head 108.

In the material loading process, more balls are firstly contained in the loading tray 100 and cover the upper part of the first material port 102, and at the moment, a piston rod or other moving parts which drive the first material port 102 to move up and down are positioned at a lower position; then the lifting cylinder 107 drives the first material opening 102 to move upwards, and the balls in the first material opening are lifted upwards, so that the balls in the first material opening 102 are lifted and separated from other balls, and the carrying device is waited to carry.

The whole using process of the device is as follows: the turntable 313 drives the positioning mechanism 432 to reach an outer ring feeding station, the outer ring is conveyed to the positioning pin 201 by the conveying mechanism, then the turntable 313 rotates to the inner ring feeding station to carry out inner ring assembly, and the positioning mechanism 432 is opened and closed so as to ensure the assembly accuracy of the inner ring and the outer ring; then, the turntable 313 rotates to the retainer assembling station 402 for assembling, then rotates to the ball assembling station 403 for ball feeding assembling, the balls are embedded in assembling grooves, not shown, of the retainer, and finally rotates to the inner cover assembling station 404, so that the balls are limited while the inner cover and the inner ring are assembled.

Example 2

This embodiment is different from embodiment 1 in that: the stations around the turntable 313 further comprise a material detection station, and a material detection device is arranged on the material detection station and used for detecting whether the positioning mechanism 432 is correctly assembled with materials or not.

Example 3

This embodiment is different from embodiment 1 in that: a machine vision detection station is arranged between the ball assembling station 403 and the inner cover assembling station 404 for detecting whether the balls are assembled correctly.

In summary, the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made in the claims of the present invention should be covered by the claims of the present invention.

Claims (10)

1. Assembly machine for assembling micro-bearings, comprising a turntable (313), characterized in that: the turntable (313) is provided with a plurality of positioning mechanisms (432) for positioning parts, a plurality of stations are arranged around the turntable (313), and the stations comprise an outer ring assembly station (400), an inner ring assembly station (401), a retainer assembly station (402), a ball assembly station (403) and an inner cover assembly station (404); the outer ring assembling station (400), the inner ring assembling station (401), the retainer assembling station (402), the ball assembling station (403) and the inner cover assembling station (404) all comprise a part conveying mechanism (430) and a part feeding mechanism (431), the conveying mechanism conveys parts of the part feeding mechanism (431) to a positioning mechanism (432) for assembling, and the parts are sequentially arranged into an inner ring, an outer ring, a retainer, balls and an inner cover in an assembling order; the device also comprises a material existence detection station (480); the material existence detection station (480) is arranged between the inner ring assembly station (401) and the retainer assembly station (402) and between the retainer assembly station (402) and the ball assembly station (403).

2. An assembling machine for assembling minute bearings according to claim 1, wherein: the turntable (313) is provided with a plurality of positioning mechanisms (432), and the number of the positioning mechanisms (432) is equal to that of the stations and corresponds to that of the stations one by one; the positioning mechanism (432) comprises a base (200), the base (200) is fixedly installed on a turntable (313), a positioning pin (201) used for positioning a part is arranged on the base (200), the shape of the end part of the positioning pin (201) is matched with that of the part, a sliding rail (202) is arranged on the base (200), two sliding assemblies capable of sliding along the sliding rail (202) are arranged on the sliding rail (202) and defined as a first sliding assembly (203) and a second sliding assembly (204), an adjusting opening (205) is formed when the first sliding assembly (203) and the second sliding assembly (204) are close to each other, and the adjusting opening (205) and the positioning pin (201) are coaxially arranged; a first push arm (206) is arranged on the first sliding assembly (203), a second push arm (207) is arranged on the second sliding assembly (204), the first push arm (206) is hinged with the first sliding assembly (203), and the second push arm (207) is hinged with the second sliding assembly (204); the automatic pushing device is characterized by further comprising a connecting shaft (208), the first pushing arm (206) and the second pushing arm (207) are connected through the connecting shaft (208), the first pushing arm (206) and the second pushing arm (207) can rotate around the connecting shaft (208), and when the connecting shaft (208) moves along a straight line, the first pushing arm (206) and the second pushing arm (207) are driven to rotate around the connecting shaft (208) synchronously.

3. An assembling machine for assembling minute bearings according to claim 2, wherein: still be provided with direction spout (209) on base (200), the lower extreme of connecting axle (208) is installed and can be followed direction spout (209) and slide in direction spout (209), be connected with return spring (10) between first slip subassembly (203) and the second slip subassembly (204), the transverse distance of connecting axle (208) to first slip subassembly (203) and the transverse distance of connecting axle (208) to second slip subassembly (204) are the same all the time, first push arm (206) and second push arm (207) are provided with the fillet near the side of the one end of connecting axle (208), first slip subassembly (203) and second slip subassembly (204) are constituteed by the slider with mounting panel (420) cooperation installed on the slider.

4. An assembling machine for assembling minute bearings according to claim 2, wherein: the opening mechanism (11) is arranged on the rotating disc (313), the opening mechanism (11) is arranged at one end close to the connecting shaft (208), the opening mechanism (11) comprises a telescopic push block (212), and the push block (212) can act on the connecting shaft (208) or the first push arm (206) or the second push arm (207) to push the connecting shaft (208) to move along a straight line; the opening mechanism (11) is an air cylinder, and the push block (212) is arranged on the telescopic part of the air cylinder.

5. An assembling machine for assembling minute bearings according to claim 1, wherein: the structure of the part assembling mechanism and the part conveying mechanism (430) of the outer ring assembling station (400), the inner ring assembling station (401) and the inner cover assembling station (404) is the same; the part carrying mechanism (430) comprises a first mounting frame (300), an output mechanism (301) and a horizontal moving assembly are mounted on the first mounting frame (300), a vertical moving assembly capable of moving in the vertical direction is mounted on the horizontal moving assembly, one end of the vertical moving assembly is connected with the output end of the output mechanism (301), when the output mechanism (301) drives the vertical moving assembly to move up and down, the vertical moving assembly drives the left-right moving assembly to move left and right, a grabbing mechanism (302) is mounted on the vertical moving assembly, the horizontal moving assembly comprises a first guide rail (303) arranged in the horizontal direction and a first sliding block (305) mounted on the first guide rail (303) and capable of sliding along the first guide rail (303); the vertical removal subassembly includes second guide rail (304) that vertical direction set up, second guide rail (304) are installed and are slided from top to bottom along first slider (305) on first slider (305), the upper end and the output mechanism (301) of second guide rail (304) are connected, output mechanism (301) include power portion (306) and swinging boom (307), power portion (306) can drive swinging boom (307) and rotate, the one end of swinging boom (307) is connected with spliced pole (308), spliced pole (308) are connected with the vertical removal subassembly.

6. An assembling machine for assembling minute bearings according to claim 5, wherein: the output mechanism (301) comprises a power part (306) and a rotating arm (307), the power part (306) can drive the rotating arm (307) to rotate, one end of the rotating arm (307) is connected with a connecting column (308), the connecting column (308) is connected with a vertical moving component, a U-shaped track groove (309) with a downward integral opening is mounted on the first mounting frame (300), the connecting column (308) is mounted in the track groove (309), and when the power part (306) drives the rotating arm (307) to rotate, the connecting column (308) moves along the track of the track groove (309); the output mechanism (301) comprises a power part (306), and the power part (306) is a hollow rotating platform or a motor.

7. An assembling machine for assembling minute bearings according to claim 5, wherein: snatch mechanism (302) and be vacuum adsorption equipment, vacuum adsorption equipment includes vacuum suction head (310), and absorption mouth (311) have been seted up to the lower extreme of vacuum suction head (310), and vacuum suction head (310) are hollow structure, and the lower extreme of vacuum suction head (310) is sealed lid, and sealed covering has seted up a plurality of absorption mouths (311), and absorption mouth (311) communicate to the hollow structure in vacuum suction head (310), is provided with limit switch (312) on first guide rail (303).

8. An assembling machine for assembling minute bearings according to claim 5, wherein: the part feeding mechanism (431) comprises a feeding disc (1), the feeding disc (1) is connected with a dislocation feeding mechanism (431), and the dislocation feeding mechanism (431) separates materials from the feeding disc (1); the dislocation separation mechanism comprises a sliding part (2), a first material port (102) used for containing materials is formed in the sliding part (2), the sliding part (2) can slide to enable the first material port (102) to be connected with an upper material tray (1) to separate the materials in the upper material tray (1), the upper material tray (1) is a vibrating tray, the upper material tray (1) comprises a material discharge rail (103), the material discharge rail (103) is connected to the dislocation feeding structure, the dislocation separation mechanism is a sliding table cylinder (104), a sliding block is installed on the sliding part (2) of the sliding table cylinder (104), and the first material port (102) is formed in the sliding block; the sliding part (2) can drive the first material opening (102) to be communicated with the discharging track (103), and an optical fiber detection sensor is installed on the inner wall of the first material opening (102).

9. An assembling machine for assembling minute bearings according to claim 8, wherein: an ion wind device (105) is arranged on the feeding tray (1), the feeding tray (1) is a vibrating tray, and the outlet track (106) of the retainer is obliquely arranged;

or the dislocation feeding mechanism (431) is arranged at the bottom of the feeding tray (100), the dislocation feeding mechanism (431) comprises a lifting cylinder (107), the output end of the lifting cylinder (107) is connected with a first material port (102), and the first material port (102) is of a groove structure.

10. An assembling machine for assembling minute bearings according to claim 7, wherein: the number of the grabbing mechanisms (302) is two, the grabbing mechanism at the left end comprises a mounting plate (420), a telescopic cylinder (421) is arranged on the mounting plate ((420), a connecting rod (422) is hinged to the mounting plate (420), the middle part of the connecting rod (422) is connected to the mounting plate (420) through a rotating shaft, one end of the connecting rod (422) is connected with the telescopic end of the telescopic cylinder (421), the other end of the connecting rod (422) is connected with a second vacuum adsorption device, and the second vacuum adsorption device comprises a third adsorption head (450); the material grabbing mechanism is characterized by further comprising an adjusting frame, an adjusting seat (460) is arranged on the adjusting frame, the material is conveyed to the adjusting seat (460) from the feeding mechanism by the grabbing mechanism at the left end, the material on the adjusting seat (460) is conveyed to the positioning mechanism by the grabbing mechanism at the right end, and a machine vision device (461) used for detecting whether a retainer exists on the adjusting seat (460) is arranged above the adjusting seat (460).

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