CN217647902U - Multi-station screw locking machine and multi-station screw locking system - Google Patents

Abstract

The utility model relates to a multistation lock screw machine and multistation lock screw system belongs to the auto-screwdriving machine field. The utility model discloses a first base, install rotor subassembly and lift drive assembly on the first base, be fixed with electronic screwdriver on the lift drive assembly, there are a plurality of batch head subassemblies installed in the rotor subassembly below the electronic screwdriver, each batch head subassembly below the cover has the material suction pipe, each material suction pipe bottom is fixed with magnetic force spare; and a multi-station screw locking system which is developed based on the multi-station screw locking machine and comprises a dividing mechanism, a vibration plate feeder and a nail removing mechanism. The problem of among the prior art multistation lock screw machine suction head absorb the lock and attach device structure complicacy and unstable and go up the unloading process and still need artifical the participation is solved.

Description

Multi-station screw locking machine and multi-station screw locking system

Technical Field

The utility model relates to an automatic lock screw machine field especially relates to a multistation lock screw machine and multistation lock screw system.

Background

The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. The screw is indispensable industry requisite in daily life: very small screws used in cameras, glasses, clocks, electronics, etc.; general screws for televisions, electric appliances, musical instruments, furniture, and the like; large screws and nuts are used for engineering, buildings and bridges; transportation equipment, airplanes, electric cars, automobiles, and the like are used with screws of different sizes. Due to the fact that production scale is enlarged, parts in products are increased, various multi-station screw locking machines are available in the market for improving efficiency of screw locking process, the multi-station screw locking machines achieve automatic conveying, screwing, detecting and other processes of screws through various electric and pneumatic components, the screw locking process is simplified through equipment, and the purposes of reducing labor amount and reducing adverse factors caused by manual misoperation are achieved.

However, the existing suction head suction locking device, such as CN213998502U, is vacuum-sucked, so that a corresponding air-extracting device is required, which not only requires extra equipment cost, but also has the problem that screws are easy to fall off in a screw suction mode by air pressure, and a part of electrical equipment is added, resulting in unstable overall device and increased energy consumption. And the feeding, getting material and unloading process of multistation lock screw machine still need workman manually operation among the prior art, and this kind of operating method, work efficiency is lower, and it is more to drop into manpower resources, has increased the human cost.

The utility model provides a multistation lock screw machine and multistation lock screw system for solve the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the utility model provides a multistation lock screw machine and one kind include but not limited to by multistation lock screw machine, cutting mechanism, vibrations dish feeder, the multistation lock screw system that the mechanism constitutes of going to nail to absorb the lock and attach the device structure complicacy and unstable and material loading, get the material and the problem that the unloading process still needs workman to participate in of multistation lock screw machine suction head among the solution prior art.

The technical scheme of the utility model is that: the utility model provides a multistation lock screw machine, includes first base, install rotor subassembly and lift drive assembly on the first base, be fixed with electronic screwdriver on the lift drive assembly, electronic screwdriver below have install in a plurality of batch head subassembly in the rotor subassembly, every batch head subassembly below cover is equipped with inhales the material pipe, every inhale material pipe bottom and all be fixed with magnetic force spare.

Preferably, the interior of the material suction pipe is hollow and is provided with a first step, the inner diameter of the upper part is larger than that of the lower part, and the bottom end of the material suction pipe is provided with a horn-shaped opening; the magnetic force piece is of a circular ring structure and is located above the horn-shaped opening, and a first cavity for accommodating a screw is formed between the lower end face of the magnetic force piece and the horn-shaped opening of the material suction pipe.

Preferably, the first base comprises a vertical mounting frame and a horizontal supporting seat, a support extending downwards is fixed on the horizontal supporting seat, a photoelectric sensor is horizontally fixed on the support, and the mounting height of the photoelectric sensor and the adsorbed screw are located on the same horizontal plane; the photoelectric sensor emits laser beams for detecting whether the magnetic piece is adsorbed to the screw or not.

Preferably, the rotor assembly is mounted on the horizontal support seat and comprises a first servo motor and a rotary table which is in belt transmission with the first servo motor, a plurality of through holes are uniformly distributed on the rotary table, and a circle passing through the centers of the plurality of through holes is called a center circle; and the axis of the electric screwdriver is perpendicularly intersected with the central circle.

Preferably, the bit assembly comprises an upper bit and a lower bit which are connected in the vertical direction through a coupler, wherein the upper bit passes through a guider arranged in each through hole, a second spring is sleeved on the upper bit, the upper end of the second spring abuts against the top end of the upper bit, and the lower end of the second spring abuts against the top end of the guider;

the upper part of the lower screwdriver head is a cylinder with a second step, the diameter of the lower part of the lower screwdriver head is smaller than the inner diameter of the magnetic part and smaller than the diameter of the upper part of the lower screwdriver head, a second cavity is formed between the second step of the lower screwdriver head and the first step in the material suction pipe, a first spring is arranged in the second cavity, the upper end of the first spring abuts against the second step, and the lower end of the first spring abuts against the first step.

Preferably, the lifting driving assembly comprises a driver and a lifting platform arranged on the driver;

the driver includes fixed mounting guide rail and slider and cylinder on the vertical mounting bracket, wherein lift platform by the cylinder drive, electronic screwdriver along vertical run-through install in on the lift platform.

Based on a multistation lock screw machine, the utility model discloses a multistation lock screw system has still been developed, including cutting mechanism, vibrations dish feeder, remove the nail mechanism with multistation lock screw machine.

Preferably, the dividing mechanism comprises a dividing mechanism base, and an actuator and a driver for driving the actuator are mounted on the dividing mechanism base;

wherein the driver comprises a second servo motor and a speed reducer;

the actuator comprises a circular chuck connected with the driver and a ring table surrounding the chuck, the ring table is fixed on the base of the cutting mechanism, the upper end surface of the ring table is flush with the chuck, and any one position on the side wall of the ring table is provided with a through groove used as a screw feeding port;

the chuck edge is evenly opened have with the equal U type notch of batch head subassembly number of quantities, U type notch with the ring platform cooperatees and is used for carrying on the screw, the chuck with retarder connection the drive of second servo motor is rotatory down.

Preferably, the nail removing mechanism comprises a second base, nail removing devices which are uniformly arranged on the second base in a surrounding mode along the circumference and are equal in number to the batch head assemblies are installed on the second base, and each nail removing device comprises two clamping jaws and a clamping jaw air cylinder used for driving the clamping jaws to perform clamping action.

Compared with the prior art, the utility model has the advantages that:

1. the utility model is applied to the screw locking process, and the magnetic force device is arranged to replace the original vacuum adsorption piece, so that the adsorbed screw can not fall off due to the possible air pressure change, and the stability of the screw adsorption is improved; and the magnetic part device does not need additional energy, and compared with a vacuum adsorption part, the magnetic part device saves equipment such as an air extractor, reduces the equipment cost, the weight and the energy consumption, and correspondingly reduces the failure rate.

2. The utility model discloses a photoelectric sensor replaces original atmospheric pressure detection device, thereby deduces the screw from original change through detecting atmospheric pressure with detection method and whether adsorbed this indirect detection mode, replaces the mode of carrying out direct detection to the screw through photoelectric sensor, and fundamentally has reduced the condition that check out test set misjudged.

3. The automation of the processes of feeding, material taking and discharging of the multi-station screw locking system is realized by arranging the dividing plate and the nail removing mechanism, the working efficiency is improved, the number of workers is reduced, and the full automation of the screw locking process is realized.

Drawings

The invention will be further described with reference to the following drawings and examples:

fig. 1 is a structural diagram of a multi-station screw locking machine according to the present invention;

fig. 2 is a structural diagram of the rotor assembly of the present invention;

FIG. 3 is a structural diagram of the lifting driving assembly of the present invention;

FIG. 4 is a partial cross-sectional view of the bit assembly of the present invention;

FIG. 5 is a structural diagram of the cutting mechanism of the present invention;

FIG. 6 is a partial enlarged view of the cutting mechanism a of the present invention;

FIG. 7 is a structural diagram of the nail removing mechanism of the present invention;

FIG. 8 is a partial enlarged view of the nail removing mechanism b of the present invention;

fig. 9 is a structural diagram of a multi-position screw locking system according to the present invention;

wherein: 01. the multi-station screw locking machine comprises a multi-station screw locking machine 1, a first base, 11, a photoelectric sensor 12, a positioning camera 2, a rotor assembly 21, a first servo motor 211, a driving wheel 221, a through hole 22, a rotary disc 3, a lifting driving assembly 31, an electric screwdriver 32, a lifting platform 33, a guide rail 34, an air cylinder 35, a sliding block 4, a batch head assembly 41, a batch head 42, a second spring 43, a guider 44, a coupler 45, a first spring 46, a suction pipe 47, a batch head 48, a magnetic suction piece 49, a connecting sleeve 5, a dividing mechanism 51, a dividing mechanism base 511, a feeding detection device 52, a second servo motor 53, a ring platform 531, a through groove 54, a chuck 541, a U-shaped groove 6, a nail removing mechanism 61, a second base 62, a clamping jaw 621, a rectangular protrusion 622, an anti-skid groove 63, a clamping jaw air cylinder 7 and a vibration feeder disc.

Detailed Description

The following detailed description is made in conjunction with specific embodiments of the present invention:

as shown in fig. 1 and 4, the present invention relates to a multi-station screwing machine 01, which mainly comprises a first base 1, a rotor assembly 2 and a lifting driving assembly 3 mounted on the first base. Wherein, be fixed with electronic screwdriver 31 on the lift drive assembly 3, electronic screwdriver 31 below has a plurality of batch head subassemblies 4 of installing in rotor subassembly 2, and every batch head subassembly 4 below cover is equipped with inhales the material pipe 46, and every inhales the material pipe 46 bottom and all is fixed with magnetic force piece 48.

First base 1 has the horizontal support seat and is fixed in the vertical mounting bracket on the horizontal support seat, guarantees the steadiness of structure through setting up the floor between horizontal support seat and the vertical mounting bracket. Wherein, horizontal supporting seat central point puts and opens the notch and is used for installing rotor subassembly 2, is equipped with lift drive assembly 3 and the location camera 12 that is used for the location on the vertical mounting bracket.

As shown in fig. 3, wherein the lifting drive assembly 3 comprises a driver and a lifting platform 32 mounted on the driver; the driver includes guide rail 33 and cooperation slider 35 and cylinder 34 of fixed mounting on vertical mounting bracket, and wherein lift platform 32 is L type structure, and its vertical end is installed on slider 35, and lift platform 32 is driven by cylinder 34 of installing on vertical mounting bracket, has on the horizontal end along the electronic screwdriver 31 of vertical direction through installation, can drive and criticize first subassembly 4 and carry out actions such as pushing down, locking, reseing.

As shown in fig. 2, the rotor assembly 2 is mounted on the horizontal support base, and the rotor assembly 2 includes a first servo motor 21 and a turntable 22 which is in belt transmission with a driving wheel 211 on an output shaft of the first servo motor 21; wherein, the upper half of the turntable 22 is connected with a belt, and the lower half is arranged in a notch of the horizontal supporting seat through a bearing; the upper end surface of the rotary table 22 is uniformly provided with a plurality of through holes 221, a circle passing through the centers of the plurality of through holes 221 is called a center circle, and the axis of the electric screwdriver 31 is vertically intersected with the center circle. In the operation process of the rotor assembly 2, after the driving action of the first servo motor 21 is finished each time, the axis of the through hole 221 along the clockwise or counterclockwise direction can be sequentially overlapped with the axis of the electric screwdriver 31, and at this time, the station where the through hole 221 is located is called as a locking station; in this embodiment, as a further optimization, in order to prevent the phenomenon that the transmission is not synchronous due to the slippage in the process of belt transmission, the belt is a synchronous belt, and the upper half part of the turntable 22 and the driving wheel 211 are correspondingly set as toothed belt wheels.

As shown in fig. 4, the bit assembly 4 includes an upper bit 41 and a lower bit 47 connected in the vertical direction through a coupler 44, the axis of the bit assembly 4 located on the locking station coincides with the axis of the electric screwdriver 31, wherein the upper bit 41 passes through a guide 43 disposed in each through hole 221, the guide 43 is a hollow cylinder vertically penetrating through the turntable 22, the upper bit 41 is sleeved with a second spring 42, the upper end of the second spring 42 abuts against the top end of the upper bit 41, the lower end of the second spring abuts against the top end of the guide 43, and the second spring 42 is used for resetting the bit assembly 4 after the bit assembly 4 completes the pressing and locking actions.

The upper part of the lower batch head 47 is a cylinder with a second step, the diameter of the lower part of the lower batch head 47 is smaller than the inner diameter of the magnetic part 48 and smaller than the diameter of the upper part of the lower batch head 47, a suction pipe 46 is sleeved outside the lower batch head 47, and the suction pipe 46 is connected with the coupling 44 through a connecting sleeve 49. Wherein, the outer side of the material suction pipe 46 is provided with a shaft shoulder, the inner side of the shaft shoulder is provided with a first step, and the bottom end of the shaft shoulder is provided with a trumpet-shaped opening; the upper end of the connecting sleeve 49 is connected with the coupling 44 through threads, and a third step is arranged inside the lower end of the connecting sleeve and is abutted against a shaft shoulder outside the material suction pipe 46; the magnetic member 48 is of a circular ring structure and is positioned above the horn-shaped opening, and a first cavity for accommodating screws is formed by the lower end surface of the magnetic member 48 and the horn-shaped opening of the material suction pipe 46; wherein the first step is below the second step and the first spring 45 is in abutment in the second chamber between the first step and the second step. After the magnetic member 48 is attached to the screw, the batch head assembly 4 is moved to the position above the to-be-locked threaded hole of the workpiece, and the lifting driving assembly 3 drives the electric screwdriver 31 to compress the second spring 42 so as to move the batch head assembly 4 downwards until the screw contacts the to-be-locked threaded hole on the surface of the workpiece. The electric screwdriver 31 then descends slowly compressing the first spring 45, while the suction tube 46 moves upwards with respect to the lower head 47, so that the lower head 47 abuts against the screw. Then the electric screwdriver 31 drives the screwdriver head assembly 4 to perform a locking action until the screw is locked and then stops the locking action, the screwdriver head assembly 4 is reset under the action of the second spring 42, and the suction pipe 46 is reset under the action of the first spring 45. It should be noted that a gap is left between the bottom end of the coupling 44 and the top end of the suction pipe 46, so as to avoid obstructing the relative movement between the suction pipe 46 and the lower batch head 47.

As further optimization, a support extending downwards is fixed on the horizontal support seat, a photoelectric sensor 11 is horizontally fixed on the support, and the mounting height of the photoelectric sensor 11 and the adsorbed screw are located on the same horizontal plane; the photoelectric sensor 11 emits a laser beam for detecting whether the magnetic member 48 is attached to the screw. If the magnetic member 48 is not successfully attached to the screw, the pressing and locking actions are not performed, and the rotor assembly 2 continues to rotate to the next through hole station where the screw is correctly attached to the screw, so as to prevent the screw missing from the workpiece due to the empty locking phenomenon in the locking action.

As shown in fig. 9, the present invention further relates to a multi-station screw locking system, which further comprises a vibration tray feeder 7 for supplying screws, a dividing mechanism 5 for uniformly dispersing the screws so as to facilitate the multi-station screw locking machine 01 to adsorb, a mechanical arm for driving the multi-station screw locking machine 01 to move and a nail removing mechanism 6 for discharging.

As shown in fig. 5 and 6, the dividing mechanism 5 is mounted on the table as a terminal mechanism of the vibration plate feeder 7 by a column, a dividing mechanism base 51 is connected to a top end of the column, a casing is wrapped around the dividing mechanism base 51, and an actuator for dividing a screw supplied to the vibration plate feeder 7 and a driver for driving the actuator are mounted on the dividing mechanism base 51. In the present embodiment, the driver is a second servo motor 52 with a speed reducer; the actuator consists of a ring platform 53 with the lower end surface connected to the base of the dividing mechanism and a chuck 54 connected with a speed reducer, wherein the ring platform 53 is in clearance fit with the chuck 54, a through groove 531 is formed at any position of the side wall of the ring platform 53, and the through groove 531 is abutted against the feed port of the vibration disc feeder 7 to be used as a feed port of the dividing mechanism; the upper portion of the chuck 54 is a circular thin plate, the upper end face of the thin plate is flush with the upper end face of the ring platform 53, the edge of the thin plate is uniformly provided with U-shaped grooves 541 which correspond to the batch head assemblies one by one, any U-shaped groove 541 is aligned with the through groove 531 on the ring platform 53, the width of the U-shaped groove 541 is larger than the thread major diameter of the screw and smaller than the diameter of the screw head, so that the U-shaped groove 541 can be matched with the ring platform 53 to carry the screw, and the lower portion of the chuck 54 is a cylindrical protrusion and is connected with a speed reducer of the second servo motor 52. During operation, when the feeding detection device 511 arranged on the base 51 of the dividing mechanism detects that screws enter the U-shaped groove 541 at the feeding port, the second servo motor 52 drives the chuck 54 to rotate, so that the adjacent U-shaped groove 541 is aligned with the through groove 531 on the ring table 53 to be ready to receive the next screw, and the process is sequentially circulated until all the U-shaped grooves 541 are loaded with screws.

As shown in fig. 7 and 8, the nail removing mechanism 6 serving as a material removing device of the multi-station screw locking machine 01 comprises a second base 61, nail removing devices which are equal to the number of the batch head assemblies 4 are uniformly arranged on the second base 61 in a surrounding manner along the circumference, each nail removing device comprises two clamping jaws 62 and a clamping jaw air cylinder 63 for driving the clamping jaws 62 to perform clamping action, the clamping jaws 62 extend towards the center of a circle surrounded by the nail removing devices, and the clamping ends of the clamping jaws 62 are upwards provided with rectangular protrusions 621 and are engraved with anti-skid grooves 622. Wherein the circular ring formed by all the rectangular protrusions 621 can be vertically penetrated by the axes of all the batch head assemblies 4.

When in work:

1. the vibratory plate feeder 7 feeds screws to the dividing mechanism, and the dividing mechanism 5 divides the received screws into an arrangement suitable for the multi-station screwing machine 01 to take.

2. After the multi-station screw locking machine 01 takes a material, the material is moved to the position above a workpiece to be locked under the help of the positioning camera 12, so that a screw on the locking station is aligned with a screw hole to be locked.

3. At this time, if the photoelectric sensor 11 detects that the screw is normally adsorbed, the lifting driving assembly 3 controls the electric screwdriver 31 to move downwards, and drives the screwdriver head assembly 4 to lock the screw. Conversely, the rotor assembly 2 rotates to switch the next batch head assembly 4 which normally adsorbs the screws to enter the locking station.

4. After the screws are locked, the lifting driving component 3 and the batch head component 4 reset, and the mechanical arm drives the multi-station screw locking machine 01 to enter the next station and repeat the operation.

5. After all locking works are completed, if residual screws still exist on the batch head assembly 4, the mechanical arm drives the batch head assembly 4 to move to the position above the nail removing mechanism 6, the screws extend into the clamping ends of the clamping jaws 62, the clamping jaw air cylinders 63 of the nail removing machine control tightly clamp the clamping jaws 62, and then the mechanical arm drives the multi-station screw locking machine 01 to be separated from the nail removing mechanism 6, so that the removal of the screws is completed.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. It is obvious to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention, and that the embodiments are therefore to be considered in all respects as exemplary and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (9)

1. The utility model provides a multistation lock screw machine, its characterized in that, includes first base, install rotor subassembly and lift drive assembly on the first base, be fixed with electronic screwdriver on the lift drive assembly, electronic screwdriver below have install in a plurality of batch head subassemblies in the rotor subassembly, every batch head subassembly below cover is equipped with inhales the material pipe, every inhale the material socle end and all be fixed with magnetic force spare.

2. The multi-station screw locking machine as claimed in claim 1, wherein the suction tube is hollow and has a first step, the inner diameter of the upper part is larger than that of the lower part, and the bottom end is provided with a trumpet-shaped opening; the magnetic part is of a circular ring structure and is positioned above the horn-shaped opening, and a first cavity for accommodating a screw is formed between the lower end face of the magnetic part and the horn-shaped opening of the material suction pipe.

3. The multi-station screw locking machine according to claim 1, wherein the first base comprises a vertical mounting frame and a horizontal support seat, a support extending downwards is fixed on the horizontal support seat, a photoelectric sensor is horizontally fixed on the support, and the mounting height of the photoelectric sensor and the height of the adsorbed screw are located on the same horizontal plane; the photoelectric sensor emits laser beams for detecting whether the magnetic piece is adsorbed to the screw or not.

4. The multi-station screw locking machine according to claim 3, wherein the rotor assembly is mounted on the horizontal support base and comprises a first servo motor and a rotary table which is in belt transmission with the first servo motor, a plurality of through holes are uniformly distributed in the rotary table, and a circle passing through the centers of the plurality of through holes is called a center circle; the axis of the electric screwdriver is perpendicularly intersected with the central circle.

5. The multi-station screw locking machine according to claim 4, wherein the bit assembly comprises an upper bit and a lower bit which are connected in a vertical direction through a coupler, wherein the upper bit passes through a guide device arranged in each through hole, a second spring is sleeved on the upper bit, the upper end of the second spring abuts against the top end of the upper bit, and the lower end of the second spring abuts against the top end of the guide device;

the upper part of the lower screwdriver head is a cylinder with a second step, the diameter of the lower part of the lower screwdriver head is smaller than the inner diameter of the magnetic part and smaller than the diameter of the upper part of the lower screwdriver head, a second chamber is formed between the second step of the lower screwdriver head and the first step in the material suction pipe, a first spring is arranged in the second chamber, the upper end of the first spring abuts against the second step, and the lower end of the first spring abuts against the first step.

6. A multi-station screw locking machine according to claim 3, wherein said lifting drive assembly comprises a driver and a lifting platform mounted on said driver;

the driver includes fixed mounting guide rail and slider and cylinder on the vertical mounting bracket, wherein lift platform by the cylinder drive, electronic screwdriver along vertical run-through install in on the lift platform.

7. A multi-station screw locking system, characterized in that, comprises a dividing mechanism, a vibration disc feeder, a nail removing mechanism and the multi-station screw locking machine of any one of claims 1 to 6.

8. The multi-station screw locking system according to claim 7, wherein the dividing mechanism comprises a dividing mechanism base, and an actuator and a driver for driving the actuator are mounted on the dividing mechanism base;

wherein the driver comprises a second servo motor and a speed reducer;

the actuator comprises a circular chuck connected with the driver and a ring table surrounding the chuck, the ring table is fixed on the base of the dividing mechanism, the upper end surface of the ring table is flush with the chuck, and any one position on the side wall of the ring table is provided with a through groove used as a feed inlet of a screw;

the edge of the chuck is uniformly provided with U-shaped notches with the number equal to that of the batch head assemblies, the U-shaped notches are matched with the ring platform to carry screws, and the chuck is connected with the speed reducer and driven by the second servo motor to rotate.

9. The multi-station screw locking system according to claim 7, wherein the nail removing mechanism comprises a second base, nail removers which are uniformly arranged around the circumference and are equal to the batch head assemblies in number are mounted on the second base, and each nail remover comprises two clamping jaws and a clamping jaw air cylinder for driving the clamping jaws to perform clamping action.

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