CN108526838B

CN108526838B - Speed reducer parallel key assembly equipment

Info

Publication number: CN108526838B
Application number: CN201810351105.XA
Authority: CN
Inventors: 吴招娣
Original assignee: Individual
Current assignee: Luo Yongsheng
Priority date: 2018-04-18
Filing date: 2018-04-18
Publication date: 2020-07-10
Anticipated expiration: 2038-04-18
Also published as: CN108526838A

Abstract

The invention relates to a speed reducer flat key assembly device, which mainly solves the problems of high labor intensity, low qualification rate and low assembly efficiency of the prior art when an impact force is adopted to assemble a flat key, and comprises a rack, an operating panel, a correcting mechanism, a conveying mechanism, a feeding assembly mechanism and a key pressing mechanism, wherein the rack is provided with the correcting mechanism, the conveying mechanism, the feeding assembly mechanism and the key pressing mechanism, the correcting mechanism, the feeding assembly mechanism and the key pressing mechanism are sequentially arranged along the conveying direction of the conveying mechanism, the rack is also provided with the operating panel, the operating panel comprises a button module for setting the action of the device and a display module capable of displaying the state information of the device in real time, and the operating panel is connected with the technical scheme of the input end of a P L C controller, so that the device can be used for assembling a speed reducer.

Description

Speed reducer parallel key assembly equipment

Technical Field

The invention relates to a reducer flat key assembling device.

Background

The speed reducer is a relatively precise machine, is used for reducing the rotating speed and increasing the torque, is widely applied to modern machines, and needs to be provided with a flat key on an output shaft of the speed reducer in order to ensure the stable work of speed reducer equipment. The current conventional flat key assembly process is to use impact force to drive the flat key into the keyway on the output shaft. The most common method of assembly is to place the flat key into the keyway, right the key with the hand, and strike it with a hammer. Because the space is limited, once hammering is not correct, the fingers can be damaged, and the conventional method can bring large impact force, can destroy the key slot and the output shaft, and can not produce especially bad influence to the driving piece that the requirement is not high, but to the output shaft of speed reducer, can produce adverse effect to the output shaft, shorten the life of output shaft.

Therefore, in order to ensure the assembly quality requirement of the flat key, improve the working efficiency, eliminate potential safety hazards and not damage parts, the flat key assembly equipment of the speed reducer needs to be designed to improve the assembly quality and efficiency.

Disclosure of Invention

The invention aims to solve the technical problems of overcoming the existing defects, and provides a novel speed reducer flat key assembly device which has the advantages of high automation degree, high assembly speed, high accuracy and high efficiency, and solves the problems of high labor intensity, low qualification rate and low assembly efficiency in the prior art.

The speed reducer flat key assembly equipment comprises a rack, an operation panel, a correcting mechanism, a conveying mechanism, a feeding assembly mechanism and a key pressing mechanism, wherein the rack is provided with the correcting mechanism, the conveying mechanism, the feeding assembly mechanism and the key pressing mechanism, the correcting mechanism, the feeding assembly mechanism and the key pressing mechanism are sequentially arranged along the conveying direction of the conveying mechanism, the rack is also provided with the operation panel, the operation panel comprises a button module for setting the action of the device and a display module capable of displaying the state information of the device in real time, the operation panel is connected with the input end of a P L C controller, the output end of the P L C controller is connected with all mechanical parts of the device, and the P L C controller receives control instructions of the operation panel to control the action of all the mechanical parts of the device.

Preferably, the correction mechanism includes Y to cylinder two, Y is to cylinder two's piston rod through unsteady joint one and movable plate fixed connection, the movable plate is the L font, movable plate bottom bilateral symmetry has the slider, two slider slidable sets up on the linear slide rail that corresponds, two linear slide rail installs on the linear slide rail mounting panel that corresponds, wherein one linear slide rail mounting panel one end is installed Y to cylinder two, the top and the protection casing one end fixed connection of movable plate, protection casing other end bottom are provided with Y to cylinder one, Y is fixed on the cylinder supporting seat to cylinder one, the cylinder supporting seat is fixed on the connecting plate, Y passes through bearing frame and connecting plate fixed connection to the piston rod of cylinder one to pass the connecting plate and be connected with the one end of connecting plate one, the other end of connecting plate one installs parallel key installation axle sleeve, the installation detects the parallel key in the parallel key installation axle sleeve.

Preferably, the conveying mechanism comprises a servo motor, a driving synchronous belt pulley is mounted on an output shaft of the servo motor and is in transmission connection with a driven synchronous belt pulley through a synchronous belt I, the driven synchronous belt pulley is sleeved at one end of a shaft I, the shaft I is fixed on a support I, a driven synchronous belt pulley II is sleeved at the other end of the shaft I, the driven synchronous belt pulley II is in transmission connection with a driven synchronous belt pulley III through a synchronous belt II, the driven synchronous belt pulley III is sleeved on the shaft II, the shaft II is fixed on the support II, a speed reducer carrier is arranged on the synchronous belt II and is used for placing a speed reducer, a positioning groove matched with the appearance of the speed reducer is arranged in the speed reducer carrier, X-direction sliding blocks are symmetrically arranged at two sides of the bottom end of the speed reducer carrier and can be slidably arranged on corresponding X-direction linear sliding rails, and a servo motor is arranged at the leftmost position of the X-direction linear slide rail.

Preferably, the feeding assembly mechanism comprises a flat key vibration disc, a discharge port of the flat key vibration disc is connected with a feeding port of a feeding track, the feeding track is installed on the linear vibration generator, a guide block is arranged on one side of the feeding track, the guide block and the feeding track are arranged in parallel side by side, a groove for the flat key to slide back and forth is formed in the guide block, the guide block is fixed at one end of the base, a Y-direction cylinder III is installed at the other end of the base, a piston rod of the Y-direction cylinder III is connected with the push block through a floating joint II, a vacuum sucker is installed above the guide block and connected with a piston rod of the Z-direction cylinder I, the Z-direction cylinder I is installed on the Z-direction cylinder installation seat, the Z-direction cylinder installation seat is connected with a piston rod of the X-direction cylinder, and the X-direction cylinder is installed at the top, the pre-pressing block is arranged above the conveying mechanism and fixed at the bottom end of the guide shaft, the shaft body of the guide shaft penetrates through a fixed plate and is fixedly connected with one end of a second connecting plate, the other end of the second connecting plate is fixedly connected with a piston rod of a Z-direction cylinder II, the Z-direction cylinder II is installed on a cylinder installing seat, the cylinder installing seat is fixed on the fixed plate, and the fixed plate is fixed at the top of the support.

Preferably, the key pressing mechanism comprises a pressing block used for pressing the flat key and a Z-direction cylinder III used for driving the pressing block to move, a piston rod of the Z-direction cylinder III is connected with the pressing block, the Z-direction cylinder III is fixed on the supporting plate, and two upright posts used for supporting the support are arranged on the periphery of the bottom end of the supporting plate.

The second technical solution adopted by the present invention to solve the above technical problems is as follows:

an assembling method of a reducer flat key assembling device comprises the following steps:

firstly, the inspection equipment has no hidden trouble, the speed reducer is grabbed and placed in a speed reducer carrier by front-end mechanical arm equipment or manual work, a starting button of the operation panel is manually started, the Y-direction cylinder II acts, a piston rod of the Y-direction cylinder II is pushed forwards, the movable plate is pushed to move to a designated position along the linear slide rail through the transmission of the floating joint I, the Y-direction cylinder starts to act, the piston rod of the speed reducer is pushed forwards to push the detection flat key into the key slot inlet end at the shaft extension end of the speed reducer to detect the speed reducer, if the flat key is inserted into the key slot inlet end at the shaft end of the speed reducer, the Y-direction cylinder I and the Y-direction cylinder II are reset in sequence, the piston rod returns to the initial state, if the flat key is detected not to be inserted into the key slot inlet end at the shaft end of the speed reducer, the speed reducer is grabbed and placed on a conveying line of unqualified products through front-end mechanical arm equipment or manually.

Secondly, starting a flat key vibrating disc, enabling a flat key to vibrate in the flat key vibrating disc to a discharge hole of the flat key vibrating disc by using a vibration generator in the flat key vibrating disc, conveying the flat key to a discharge rail by using a linear vibration generator, descending a Z-direction cylinder I to push a vacuum sucker to move downwards to a specified position, sucking the flat key on the discharge rail by using the vacuum sucker, resetting the Z-direction cylinder I to an initial position, actuating the X-direction cylinder to push a Z-direction cylinder mounting seat to move forwards to a specified stroke position, descending the Z-direction cylinder I to the specified position again to enable the flat key to move above a groove of a guide block, loosening the flat key by using the vacuum sucker, placing the flat key into the groove of the guide block, actuating the Y-direction cylinder III by using a floating joint II, pushing a push block to push the flat key into a key groove at the shaft extension end of a speed reducer, and descending the Z-direction cylinder II, and pushing the second connecting plate and the guide shaft to move downwards to a specified stroke position, so that the prepressing block is pushed to move towards the flat key, and the flat key is pressed into the key groove for a certain depth, thereby realizing the prepressing action of the flat key.

And thirdly, starting a servo motor to drive a driving synchronous belt wheel to rotate, driving a driven synchronous belt wheel I and a driven synchronous belt wheel II to rotate simultaneously through meshing transmission of a synchronous belt I, driving the synchronous belt II and a speed reducer carrier to move through meshing transmission of a synchronous belt II, enabling the speed reducer carrier to move along the X-direction linear slide rail direction, conveying the speed reducer carrier to a key pressing mechanism, and stopping the servo motor.

And fourthly, the Z-direction cylinder III descends to push a pressing block connected with a piston rod of the Z-direction cylinder III to move downwards to press the flat key, after the pressing action is completed, the Z-direction cylinder III resets to the initial position, the servo motor is started again to output the speed reducer carrier to the tail end of the conveying mechanism, and the assembled product is taken out through a rear-end manipulator or manually.

The invention is provided with a P L C controller, can completely realize semi-automation after being programmed by related technicians, thereby reducing labor intensity and improving assembly efficiency, is provided with a correction mechanism for detecting and judging whether the speed reducer is qualified or not, eliminates defective products and performs detection in advance for the next processing process, and conveys the speed reducer to a feeding assembly mechanism through a conveying mechanism, pushes a flat key into a key groove at the shaft extension end of the speed reducer from a flat key vibration disc by using the feeding assembly mechanism, and assembles the flat key entering the key groove at the shaft extension end of the speed reducer through a key pressing mechanism, thereby realizing feeding, conveying and assembly of the flat key, greatly reducing assembly time of the flat key, simplifying operation flow, greatly reducing labor intensity of manual operation and saving labor cost.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a reducer parallel key assembly device of the present invention;

FIG. 2 is a top view of the reducer parallel key assembling apparatus of the present invention;

FIG. 3 is a schematic view of a straightening mechanism of the reducer parallel key assembling device of the invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of a conveying mechanism of the reducer parallel key assembling device of the present invention;

FIG. 6 is a schematic view of a feeding assembly mechanism of the reducer parallel key assembly device of the present invention;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6;

FIG. 8 is a schematic view of a key pressing mechanism of the reducer parallel key assembling device of the present invention;

fig. 9 is a schematic view of the flat key assembly of the reducer.

In the drawings:

1. frame 2, operating panel 3, aligning gear

4. Conveying mechanism 5, feeding assembly mechanism 6 and key pressing mechanism

301. Y is to cylinder 302, connecting plate 303, cylinder supporting seat

304. Protective cover 305, bearing seat 306 and flat key installation shaft sleeve

307. Detection flat key 308, moving plate 309 and sliding block

310. Linear slide rail 311, linear slide rail mounting plate 312 and Y-direction cylinder II

313. First floating joint 401, servo motor 402 and driving synchronous pulley

403. Synchronous belt I404, driven synchronous pulley I405 and driven synchronous pulley II

406. Support one 407, shaft one 408 and synchronous belt two

409. X-direction linear slide rail 410, X-direction slide block 411 and speed reducer carrier

412. Support II 413, shaft II 414 and driven synchronous pulley III

501. Flat key vibration disc 502, feeding track 503, support

504. X-direction cylinder 505, guide block 506 and push block

507. Base 508, vacuum chuck 509, floating joint two

510. Mounting base for Y-direction cylinder three 511, Z-direction cylinder one 512 and Z-direction cylinder

513. Column I514, Z-direction cylinder II 515 and connecting plate II

516. Guide shaft 517, pre-compaction piece 518, fixed plate

519. Cylinder mounting seat 520, shaft sleeve 601 and Z-direction cylinder III

602. Column two 603, press block 604 and support plate

701. Speed reducer 702, flat key

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.

As shown in figures 1 and 2, the speed reducer flat key assembling equipment comprises a rack 1, an operation panel 2, a correcting mechanism 3, a conveying mechanism 4, a feeding assembling mechanism 5 and a key pressing mechanism 6, wherein the correcting mechanism 3, the conveying mechanism 4, the feeding assembling mechanism 5 and the key pressing mechanism 6 are installed on the rack 1, the correcting mechanism 3, the feeding assembling mechanism 5 and the key pressing mechanism 6 are sequentially arranged in the conveying direction of the conveying mechanism 4, the rack 1 is also provided with the operation panel 2, the operation panel 2 comprises a button module for setting the action of the device and a display module capable of displaying the state information of the device in real time, the operation panel 2 is connected with the input end of a P L C controller, the output end of the P L C controller is connected with all mechanical components of the device, the P L C controller receives a control command of the operation panel 2 to control the action of all mechanical components of the device, when the equipment is used, an operator can input various data according to the display module and operate the equipment according to the prompt of the start button and the button, the button module is provided with good man-machine interaction performance, when the button is pressed, the start button is pressed, the operator can press the start button is pressed, the operator can not pressed, the operator can input data, and the operator can not be input in time, the operation process of the machine can be lost, and the operator can be prevented, and the operator can be damaged.

As shown in fig. 3 and 4, the correcting mechanism 3 includes a second Y-direction cylinder 312, a piston rod of the second Y-direction cylinder 312 is fixedly connected with a moving plate 308 through a first floating joint 313, the moving plate 308 is shaped like L, sliders 309 are symmetrically arranged on two sides of the bottom end of the moving plate 308, the two sliders 309 are slidably arranged on corresponding linear slide rails 310, the two linear slide rails 310 are mounted on corresponding linear slide rail mounting plates 311, one end of one linear slide rail mounting plate 311 is provided with the second Y-direction cylinder 312, the top end of the moving plate 308 is fixedly connected with one end of a protective cover 304, the bottom of the other end of the protective cover 304 is provided with a first Y-direction cylinder 301, the first Y-direction cylinder 301 is fixed on a cylinder support seat 303, the cylinder support seat 303 is fixed on the connecting plate 308, the piston rod of the first Y-direction cylinder 301 is fixedly connected with the connecting plate 308 through a bearing seat 305 and is connected with one end of the connecting plate 308, the other end of the connecting plate 302 is provided with a flat key.

As shown in fig. 5, the conveying mechanism 4 includes a servo motor 401, a driving synchronous pulley 402 is installed on an output shaft of the servo motor 401, the driving synchronous pulley 402 is in transmission connection with a driven synchronous pulley 404 through a synchronous belt 403, the driven synchronous pulley 404 is sleeved on one end of a shaft 407, the shaft 407 is fixed on a support 406, a driven synchronous pulley 405 is sleeved on the other end of the shaft 407, the driven synchronous pulley 405 is in transmission connection with a driven synchronous pulley three 414 through a synchronous belt 408, the driven synchronous pulley three 414 is sleeved on a shaft two 413, the shaft two 413 is fixed on a support two 412, a speed reducer carrier 411 is arranged on the synchronous belt 408, a positioning groove matched with the shape of the speed reducer 701 is arranged in the speed reducer carrier 411, the speed reducer 701 is used for placing the speed reducer 701, X-direction sliders 410 are symmetrically arranged on two sides of the bottom end of the speed reducer carrier 411, the two X-direction sliders 410 are slidably arranged on the corresponding X-direction linear slide rails 409, and the servo motor 401 is arranged at the leftmost position of the X-direction linear slide rails 409.

As shown in fig. 6 and 7, the feeding assembly mechanism 5 includes a flat key vibration disc 501, a discharge port of the flat key vibration disc 501 is connected with a feeding port of a feeding rail 502, the feeding rail 502 is installed on a linear vibration generator, a guide block 505 is arranged on one side of the feeding rail 502, the guide block 505 and the feeding rail 502 are arranged in parallel, a groove for the flat key 702 to slide back and forth is arranged in the guide block 505, the guide block 505 is fixed at one end of a base 507, a Y-direction cylinder three 510 is installed at the other end of the base 507, a piston rod of the Y-direction cylinder three 510 is connected with a push block 506 through a floating joint two 509, a vacuum chuck 508 is installed above the guide block 505, the vacuum chuck 508 is connected with a piston rod of a Z-direction cylinder one 511, the Z-direction cylinder one 511 is installed on a Z-direction cylinder installation base 512, the Z-direction cylinder installation base 512 is connected with a piston rod of an X-direction cylinder 504, the X-direction cylinder 504 is arranged at the top of the upright post 513, the pre-pressing block 517 is arranged above the conveying mechanism 4, the pre-pressing block 517 is fixed at the bottom end of the guide shaft 516, the shaft body of the guide shaft 516 penetrates through one end of the fixing plate 518 and the second connecting plate 515 to be fixedly connected, a shaft sleeve 520 is arranged between the guide shaft 516 and the fixing plate 518, the other end of the second connecting plate 515 is fixedly connected with the piston rod of the Z-direction cylinder 514, the Z-direction cylinder 514 is arranged on the cylinder mounting block 519, the cylinder mounting block 519 is fixed on the fixing plate 518, and the fixing plate 518 is fixed at the top of the support 503.

As shown in fig. 8, the key pressing mechanism 6 includes a pressing block 603 for pressing the flat key 702 and a Z-direction cylinder three 601 for driving the pressing block 603 to move, a piston rod of the Z-direction cylinder three 601 is connected with the pressing block 603, the pressing block 603 is made of a polyurethane material, damage to the flat key 702 can be effectively reduced in the pressing process, the Z-direction cylinder three 601 is fixed on a supporting plate 604, two columns 602 for supporting the supporting plate 604 are arranged around the bottom end of the supporting plate 604, and the four columns two 602 are fixed on the end surface of the frame 1.

The working principle and the assembly method of the speed reducer flat key assembly equipment comprise the following steps:

firstly, the inspection equipment has no hidden trouble, the speed reducer 701 is grabbed and placed in the speed reducer carrier 411 through front-end mechanical arm equipment or manually, the start button of the operation panel 2 is manually started, the Y-direction cylinder II 312 acts, the piston rod of the Y-direction cylinder II 312 is pushed forwards, the first floating joint 313 drives the moving plate 308 to move to a specified position along the linear slide rail 310, the first Y-direction cylinder 301 starts to act, the piston rod pushes forwards to push the detection flat key 307 into the key slot inlet end at the shaft extension end of the speed reducer 701, the speed reducer 701 is detected, if the flat key 307 is inserted into the keyway inlet end at the shaft end of the speed reducer 701, the Y-direction cylinder I301 and the Y-direction cylinder II 312 are reset in sequence, the piston rod retracts to the initial state, if the flat key 307 is not inserted into the key slot inlet end at the shaft end of the speed reducer 701, the speed reducer 701 is grabbed and placed on a conveying line of unqualified products by front end manipulator equipment or manually.

Secondly, starting the flat key vibrating disk 501, enabling the flat key 702 to vibrate in the flat key vibrating disk 501 to a discharge hole of the flat key vibrating disk 501 by using a vibration generator in the flat key vibrating disk 501, then conveying the flat key 702 to a discharge rail 502 by using a linear vibration generator, descending a Z-direction cylinder 511, pushing a vacuum sucker 508 to move downwards to a specified position, sucking the flat key 702 on the discharge rail 502 by using the vacuum sucker 508, resetting the Z-direction cylinder 511 to an initial position, actuating the X-direction cylinder 504 at the moment, pushing the Z-direction cylinder mounting seat 512 to move forwards to a specified stroke position, descending the Z-direction cylinder 511 to a specified position again, enabling the flat key 702 to move to the upper part of the groove of the guide block 505, loosening the flat key 702 by using the vacuum sucker 508, placing the flat key into the groove of the guide block 505, actuating the Y-direction cylinder 510, and driving by using a floating joint II 509 to push the push block 506 to push the flat key 702 into a key groove at the axial extension end of the speed reducer 701, and the Z-direction cylinder II 514 descends to push the connecting plate II 515 and the guide shaft 516 to move downwards to a specified stroke position, so that the pre-pressing block 517 is pushed to move towards the flat key 702, the flat key 702 is pressed into the key groove for a certain depth, and pre-pressing action on the flat key 702 is realized.

Thirdly, the servo motor 401 is started to drive the driving synchronous belt wheel 402 to rotate, the driven synchronous belt wheel I404 and the driven synchronous belt wheel II 405 are driven to rotate simultaneously through the meshing transmission of the synchronous belt I403, the driven synchronous belt wheel II 405 and the driven synchronous belt wheel III 414 are driven to move through the meshing transmission of the synchronous belt II 408, so that the speed reducer carrier 411 is driven to move along the X direction to the linear slide rail 409, the speed reducer carrier 411 is conveyed to the key pressing mechanism, and the servo motor 401 stops.

And fourthly, the Z-direction cylinder III 601 descends to push the press block 603 connected with the piston rod of the Z-direction cylinder III to move downwards to press the flat key 702, after the pressing action is completed, the Z-direction cylinder III 601 resets to the initial position, the servo motor 401 is started again to output the speed reducer carrier 411 to the tail end of the conveying mechanism 4, and the assembled product is taken out through a rear-end manipulator or manually.

Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.

Claims

1. The device comprises a rack (1), an operating panel (2), a correcting mechanism (3), a conveying mechanism (4), a feeding assembly mechanism (5) and a pressing key mechanism (6), wherein the rack (1) is provided with the correcting mechanism (3), the conveying mechanism (4), the feeding assembly mechanism (2) and the pressing key mechanism (6) which are arranged on a synchronous belt wheel (1) and are connected with a synchronous belt wheel (512) through a synchronous belt wheel (3), the feeding assembly mechanism (5) and the pressing key mechanism (6) along the conveying direction of a conveying mechanism (4), the rack (1) is further provided with the operating panel (2) which is arranged on a synchronous belt wheel (512) and a synchronous belt wheel (512) arranged on a synchronous belt wheel (510) of a vertical shaft guide plate (512) of a vertical shaft, a pressing block (512) is arranged on a vertical shaft guide plate (510) of a vertical shaft, a vertical shaft guide plate (310) of a vertical shaft guide plate (505) of a vertical shaft, a vertical shaft guide plate (310) of a vertical shaft (510) of a vertical shaft guide plate (510) and a vertical shaft, a vertical shaft (510) of a vertical shaft guide plate (510) of a vertical shaft, a vertical shaft (510) of a vertical shaft (vertical shaft, a vertical shaft (510) of a vertical shaft, a vertical shaft (transverse sliding block) and a vertical shaft) of a vertical shaft) and a vertical shaft (transverse sliding block) of a vertical shaft) arranged on a vertical shaft) of a vertical shaft (transverse sliding block) and a vertical shaft) of a vertical shaft) and a vertical shaft (transverse sliding block) and a vertical shaft) of a vertical shaft) and a vertical shaft) are arranged on a vertical shaft) and a vertical shaft) of a vertical shaft (transverse sliding block) and a vertical shaft) of a vertical shaft) and a vertical shaft) of a vertical shaft (transverse sliding block) and a vertical shaft) and a vertical shaft) are arranged, a vertical rod (transverse sliding block) transverse sliding block (transverse sliding block) transverse sliding block (transverse sliding block) and vertical shaft) transverse sliding block) and a vertical shaft) and vertical rod (transverse sliding block) of a vertical rod (transverse sliding block) and vertical rod (transverse sliding block) vertical rod (transverse sliding block) vertical rod (transverse sliding block) vertical shaft) transverse sliding block) vertical shaft) transverse sliding block (transverse sliding block) transverse sliding block (transverse sliding:

firstly, checking the equipment to be free of hidden troubles, grabbing and placing a speed reducer (701) into a speed reducer carrier (411) through front-end manipulator equipment or manually, manually starting a starting button of an operation panel (2), actuating a Y-direction cylinder II (312), pushing a piston rod of the Y-direction cylinder II (312) forwards, driving through a floating joint I (313), pushing a moving plate (308) to move to a specified position along a linear sliding rail (310), actuating the Y-direction cylinder I (301), pushing a detection flat key (307) forwards to a key slot inlet end at the shaft end of the speed reducer (701) by the piston rod of the Y-direction cylinder I, detecting the speed reducer (701), if the detection flat key (307) is inserted into the key slot inlet end at the shaft end of the speed reducer (701), sequentially resetting the Y-direction cylinder I (301) and the Y-direction cylinder II (312), withdrawing the piston rod to an initial state, and if the detection flat key (307) is not inserted into the key slot at the shaft end of the speed reducer (701), grabbing and placing the speed reducer (701) on a conveying line of unqualified products through front-end manipulator equipment or manual work;

secondly, starting the flat key vibrating disk (501), vibrating the flat key (702) in the flat key vibrating disk (501) to a discharge hole of the flat key vibrating disk (501) by using a vibration generator in the flat key vibrating disk (501), conveying the flat key (702) to a feeding track (502) by using a linear vibration generator, descending a Z-direction cylinder I (511), pushing a vacuum sucking disk (508) to move downwards to a specified position, sucking the flat key (702) on the feeding track (502) by using the vacuum sucking disk (508), resetting the Z-direction cylinder I (511) to an initial position, actuating the X-direction cylinder (504) to push the Z-direction cylinder mounting seat (512) to move forwards to a specified stroke position, descending the Z-direction cylinder I (511) to a specified position again, enabling the flat key (702) to move to be above a groove of a guide block (505), and loosening the flat key (702) by using the vacuum sucking disk (508), the pre-pressing block is placed in a groove of a guide block (505), a Y-direction cylinder III (510) acts, the floating joint II (509) is used for transmission, a push block (506) is pushed to push a flat key (702) into a key groove at the shaft end of a speed reducer (701), a Z-direction cylinder II (514) descends, a connecting plate II (515) and a guide shaft (516) are pushed to move downwards to a specified stroke position, so that a pre-pressing block (517) is pushed to move towards the flat key (702), the flat key (702) is pressed into the key groove to a certain depth, and pre-pressing action on the flat key (702) is achieved;

thirdly, the servo motor (401) is started to drive the driving synchronous belt wheel (402) to rotate, the driven synchronous belt wheel (404) and the driven synchronous belt wheel (405) are driven to rotate simultaneously through the meshing transmission of the synchronous belt (403), the driven synchronous belt wheel (405) and the driven synchronous belt wheel (414) are driven to move through the meshing transmission of the synchronous belt wheel (408), so that the synchronous belt wheel (408) and the speed reducer carrier (411) are driven to move, the speed reducer carrier (411) moves along the direction of the X-direction linear sliding rail (409), the speed reducer carrier (411) is conveyed to the key pressing mechanism, and the servo motor (401) stops;

and fourthly, the Z-direction cylinder III (601) descends to push a pressing block (603) connected with a piston rod of the Z-direction cylinder III to move downwards to press the flat key (702), after the pressing action is completed, the Z-direction cylinder III (601) resets to the initial position, the servo motor (401) is started again, and the speed reducer carrier (411) is output to the tail end of the conveying mechanism (4).