WO2018188363A1

WO2018188363A1 - Material feeding and discharging device and method therefor

Info

Publication number: WO2018188363A1
Application number: PCT/CN2017/115367
Authority: WO
Inventors: 王军领; 仲太生; 詹俊勇; 罗素萍; 吴连红
Original assignee: 扬力集团股份有限公司
Priority date: 2017-04-14
Filing date: 2017-12-10
Publication date: 2018-10-18
Also published as: CN106945024A

Abstract

Disclosed are a material feeding and discharging device and a method therefor, with the device comprising a material feeding and discharging mechanism, wherein the material feeding and discharging mechanism comprises an electric motor (5) and a base (11); the electric motor (5) is in transmission connection with a driving crankshaft (7); the driving crankshaft (7) is connected to an upper end of a driving connecting rod (8); a lower end of the driving connecting rod (8) is connected to a driven crankshaft (4); the driven crankshaft (4) is also in transmission connection with a driving gear (9); a connection centre of the driving connecting rod (8) and the driven crankshaft (4) is arranged eccentrically relative to the connection centre of the driving gear (9) and the driven crankshaft (4); the driving gear (9) is in transmission connection with a driven gear (2); the driven gear (2) is connected to a transmission shaft (3); and one end of the transmission shaft (3) is connected to one end of a rocker arm (1); connection bases (16) are respectively hinged to an upper end of a main swing arm (15) and an upper end of an auxiliary swing arm (14); the other end of the rocker arm (1) is hinged to the main swing arm (15); the other end of the main swing arm (15) and the other end of the auxiliary swing arm (14) are hinged to the base (11); the main swing arm (15) and the auxiliary swing arm (14) are parallel to each other; and an end part of the base (11) is connected to a material placement member (10) for placing materials. The material feeding and discharging device has an ingenious structure, such that automatic material feeding and discharging is achieved, thus improving the conveying efficiency, and saving on time and labour.

Description

Loading and unloading device and method thereof

Technical field

The invention relates to a loading and unloading device and a loading and unloading method, in particular to a device for loading and unloading in a stamping production of a press and a loading and unloading method.

Background technique

The existing press for stamping the workpiece needs to complete the loading and unloading of the workpiece during the stamping production. In the prior art, the loading and unloading of the workpiece are manually performed, specifically, the manual The workpiece is transported from the ground or the pedestal to the workbench of the press. After the workpiece is stamped, the operator transports the stamped workpiece from the workbench of the press to the ground or the pedestal. The loading and unloading speed is slow, time-consuming and labor-intensive, and the production efficiency is low.

Summary of the invention

The invention provides a loading and unloading device and a method thereof, and solves the technical problem of low efficiency of loading and unloading in the prior art. The invention has the advantages of high loading and unloading speed, low labor intensity and high production efficiency.

The object of the present invention is achieved by an unloading device comprising a loading and unloading mechanism, the loading and unloading mechanism comprising a motor and a base, wherein the motor is connected with an active crankshaft, and the active crankshaft is connected to the upper end of the active connecting rod. a lower end of the driving link is connected with a driven crankshaft, and a driving gear is also connected to the driven crankshaft, and a center of connection between the driving link and the driven crankshaft is eccentrically arranged with respect to a connection center of the driving gear and the driven crankshaft. The driving gear is connected with a driven gear, the driven gear is connected to the driving shaft, and one end of the driving shaft is connected to one end of the rocking arm; the upper end of the main swing arm and the auxiliary swing arm are respectively hinged on the connecting seat, The other end of the rocker arm is hinged on the main swing arm, and the other ends of the main swing arm and the auxiliary swing arm are hinged to the base, the main swing arm and the auxiliary swing arm are parallel to each other, and the end of the base is connected for placing a discharge member of the material; the transmission ratio of the driving gear and the driven gear is less than 1.

In the working of the invention, the motor works, the motor drives the active crankshaft to rotate, the rotation of the active crankshaft drives the rotation of the driving gear, the rotation of the driving gear drives the rotation of the driven gear, the rotation of the driven gear drives the rotation of the driven crankshaft, and the driven crankshaft The rotation of the rocker arm rotates, the rotation of the rocker arm drives the swing of the main swing arm and the auxiliary swing arm, and the swing of the main swing arm and the auxiliary swing arm drives the movement of the base, and the movement of the base includes the up and down movement in the height direction and the length direction. Horizontally moving left and right, the base drives the movement of the discharging member to realize automatic material transfer, and the swing of the main swing arm and the auxiliary swing arm drives the upper and lower sliding of the connecting seat; the structure of the invention is simple and ingenious, and swings through the swing arm of the gear belt The angle is large, the stroke of the discharging part is large, the automatic loading and unloading can be realized, the loading and unloading efficiency is high, the time and labor are saved, the production efficiency is improved, and the utility model can be applied to the loading and unloading work of the press machine.

In order to improve the smoothness of the motion, a rack is also included, the motor is mounted on the left side of the rack, and the drive shaft is The active crankshaft, the driven crankshaft and the drive shaft are rotatably mounted on the rack on the right side of the rack.

In order to realize the up and down movement of the loading and unloading mechanism, two rails are arranged in parallel in the vertical direction of the rack, and two sliders are connected to the rear side of the connecting seat, and the slider can slide along the rail; In the middle, the rocker arm rotates with the rotation of the transmission shaft, and the rocker arm drives the main swing arm and the auxiliary swing arm to swing, and the push-pull slider moves up and down along the slide rail to realize the vertical movement of the loading and unloading mechanism and the horizontal movement in the left and right direction. .

In order to further improve the reliability of the structure of the manipulator, the rack is provided with a dial, and the other end of the drive shaft is fixed with a pointer for indicating the dial, the dial is concentric with the drive shaft, and the other end of the drive shaft is on the left side of the rack. In this design, the drive shaft drives the rocker arm to swing, the drive shaft drives the pointer to rotate, the pointer is indicated on the dial, and the rotation angle of the drive shaft is clear at a glance. The rotation angle of the drive shaft is the swing angle of the active link, which is convenient for debugging.

As a further improvement of the present invention, the base is spaced apart from the column 1 and the column 2, the lowermost end of the main swing arm is hinged to the column, and the lowermost end of the auxiliary swing arm is hinged to the column 2 .

In order to balance the gravity of the slider, the upper part of the rack is provided with a balance bar and a balance pull rod, and the balance rod is provided with a sliding cavity. The upper part of the balance rod can slide in the sliding cavity, and the bottom of the balance rod It is connected with the connecting seat; this design can greatly reduce the gravity of the slider and the connecting seat which the driven pendulum, the main swing arm and the auxiliary swing arm are subjected to, and improve the smoothness of the swing.

In order to realize the continuity of the loading and unloading, the base and the controller are further included, and the base is disposed on the left and right sides of the press, and the upper side of the base is provided with a movable feeding platform and a loading platform, and a linear drive And the linear drive 2, the unloading table and the loading platform are respectively disposed on the left and right sides of the press, and one loading and unloading mechanism is installed on each side of the frame of the press, and the two loading and unloading mechanisms are staggered in the width direction and In the opposite arrangement, the front side of the rack of the loading and unloading mechanism of the left end faces forward, and the rear side of the rack of the loading and unloading mechanism of the right end faces forward, and the linear actuator is provided with a push-pull rod 1 for reciprocating linear motion, the linear drive The push-pull rod 2 is provided with a reciprocating linear motion. The end of the push-pull rod 1 is fixedly connected to the left side of the loading platform, and the end of the push-pull rod 2 is fixedly connected to the right side of the loading platform. The lower side of the material table and the loading table are provided with rollers which can roll along the base; in the width direction, the plane formed by the center of the main swing arm and the auxiliary swing arm is on the plane of the center of the workbench of the press. Vertical plane; the controller controls Pull rod 1, telescopic rod 2 telescopic and motor rotation; in this design, the movable table of the loading platform and the loading table facilitates the debugging position, so that the left end loading and unloading mechanism swings onto the loading platform, the base and the discharging member When the right end loading and unloading mechanism is swinged to the right to the upper side of the loading platform, the controller controls the motor of the right end loading and unloading mechanism to stop moving, so as to continuously perform loading and unloading.

As a further improvement of the present invention, the linear actuator 1 and the linear actuator 2 may be an electric push rod, a screw stepping motor or an electric cylinder.

A method for loading and unloading, comprising the following steps:

(1) Adjust the position of the loading table and the loading table so that the main swing arm of the left end loading and unloading mechanism swings to the left, and the base is completely Placed on the upper side of the loading platform, when the main swing arm of the right end loading and unloading mechanism swings to the right, the base is completely placed directly above the loading table;

(2) Control the main swing arm of the left-end loading and unloading mechanism to swing to the right, so that the discharging member is located at the center of the working table of the press, and the stamped workpiece on the press is placed on the discharging member, and the main swing arm is controlled to swing to the left. The base is placed on the upper side of the loading table;

(3) placing the workpiece to be punched on the discharging member of the right-end loading and unloading mechanism, and controlling the main swing arm of the right-end loading and unloading mechanism to swing to the left, so that the discharging member is located at the center of the working table of the press to realize loading;

(4) Return to step (2) to execute cyclically.

As a further improvement of the present invention, the following steps are also included:

(2a) transporting the stamped workpiece from the discharge member;

(3a) controlling the main swing arm of the right end loading and unloading mechanism to swing right to the top of the loading platform, ready to be loaded again;

Wherein step (2a) is between step (2) and step (3), and step (3a) is located between step (3) and step (4);

In the step (1), the extension lengths of the push-pull rod 1 and the push-pull rod 2 are controlled by the controller to adjust the positions of the loading platform and the loading platform; the step (2) and the step (3) are performed simultaneously, and the step (2) And in step (3), the rotation of the motor is controlled by the controller to control the swing direction and angle of the main swing arm.

DRAWINGS

Figure 1 is a schematic view showing the structure of the inside of the rack in the present invention.

2 is a schematic view showing the connection structure of the driving link and the driving gear in the present invention.

Figure 3 is a front elevational view of the loading and unloading mechanism of the present invention.

Figure 4 is a schematic view showing the structure of the balance bar and the connecting rod in the present invention.

Fig. 5 is a schematic structural view of the present invention before the work of cutting.

Fig. 6 is a schematic view showing the structure at the end of the loading operation in the present invention.

Figure 7 is a partial enlarged view A of the present invention.

Among them, 1 rocker arm, 2 driven gear, 3 drive shaft, 4 driven crankshaft, 5 motor, 6 material rack, 7 active crankshaft, 8 active connecting rod, 9 drive gear, 10 discharge parts, 11 base, 12 upright 2, 13 columns, 14 pairs of swing arms, 15 main swing arms, 16 joints, 17 balance bars, 18 balance bars, 19 rails, 20 sliders, 21 hands, 22 dials, 23 sliding chambers, 24 presses, 2401 rack, 25 loading platform, 26 push-pull rod two, 27 linear drive two, 28 linear drive one, 29 roller, 30 base, 31 feed table, 32 push-pull rod.

detailed description

The invention will now be further described in conjunction with specific embodiments.

As shown in FIGS. 1-7, a loading and unloading device includes a loading and unloading mechanism, and the loading and unloading mechanism includes a motor 5 and a base. 11. The motor 5 is connected to the drive shaft 7 with an active crankshaft 7. The active crankshaft 7 is connected to the upper end of the drive link 8, the lower end of the drive link 8 is connected with the driven crankshaft 4, and the driven crankshaft 4 is also connected with the drive gear 9 for active The connection center of the connecting rod 8 and the driven crankshaft 4 is eccentrically disposed with respect to the connection center of the driving gear 9 and the driven crankshaft 4, and the driving gear 9 is connected to the driven gear 2, and the driven gear 2 is connected to the transmission shaft 3, One end of the transmission shaft 3 is connected to one end of the rocker arm 1; the upper end of the main swing arm 15 and the auxiliary swing arm 14 are respectively hinged on the connecting seat 16, and the other end of the rocker arm 1 is hinged on the main swing arm 15, and the base 11 is spaced apart from the column 13 and The column 2 12, the lowermost end of the main swing arm 15 is hinged with the column 13 , the lower end of the auxiliary swing arm 14 is hinged with the column 2 12 , the main swing arm 15 and the auxiliary swing arm 14 are parallel to each other, and the end of the base 11 is connected for use. The material discharge member 10 is placed, the discharge member 10 in the embodiment is a horizontal discharge plate; the transmission ratio of the driving gear 9 and the driven gear 2 is less than 1;

In order to improve the smoothness of the movement, the rack 6 is further included, the motor 5 is mounted on the left side of the rack 6, and the end of the propeller shaft 3 is on the right side of the rack 6, and the active crankshaft 7, the driven crankshaft 4 and the transmission shaft 3 can be Rotatingly mounted on the rack 6;

In order to realize the up and down movement of the loading and unloading mechanism, two guide rails 19 are arranged in parallel in the vertical direction of the material rack 6, and two sliders 20 are connected to the rear side of the connecting seat 16, and the slider 20 can slide along the guide rails 19;

For ease of debugging, the rack 6 is provided with a dial 22, and the other end of the drive shaft 3 is fixed with a pointer 21 for indicating the dial 22, the dial 22 is concentric with the drive shaft 3, and the other end of the drive shaft 3 is at the rack 6. Left side

In order to balance the gravity of the slider 20, the upper portion of the rack 6 is provided with a balance bar 17 and a balance rod 18, and the balance rod is provided with a sliding chamber 23, and the upper portion of the balance rod 18 can slide in the sliding chamber 23 to balance the bottom of the rod 18. Connected to the connector 16;

In order to achieve the continuity of the loading and unloading, the base 30 and the controller are further included. The base 30 is disposed on the left and right sides of the press 24. The upper side of the base 30 is provided with a movable loading platform 31 and a loading platform 25 The linear drive unit 28 and the linear drive unit 27, the lower loading table 31 and the loading platform 25 are respectively disposed on the left and right sides of the press machine 24, and one loading and unloading mechanism is installed on each side of the frame 2401 of the press machine 24, and two The loading and unloading mechanism is staggered and disposed in the width direction. The front side of the rack 6 of the loading and unloading mechanism at the left end faces forward, the rear side of the rack 6 of the loading and unloading mechanism at the right end faces forward, and the linear actuator 28 is provided with a reciprocating straight line. The movable push-pull rod 32 is provided with a push-pull rod 26 for reciprocating linear motion. The end of the push-pull rod 32 is fixedly connected to the left side of the loading platform 31, and the end of the push-pull rod 26 is upper and upper. The right side of the table 25 is fixedly connected, and the lower side of the loading table 31 and the loading table 25 are provided with rollers 29 which can roll along the base 30; in the width direction, the center of the main swing arm 15 and the auxiliary swing arm 14 The plane formed is on the vertical plane of the plane of the center of the table of the press 24; the controller A push-pull rod system 32, and the telescopic push rod 5 rotates the motor 26 of the two;

The linear actuator one 28 and the linear actuator two 27 may be an electric push rod, a screw stepping motor 5 or an electric cylinder.

A method for loading and unloading, comprising the following steps:

(1) Adjusting the positions of the lower loading table 31 and the loading table 25 such that when the main swing arm 15 of the left end loading and unloading mechanism swings to the left, the base 11 is completely placed on the upper side of the lower loading table 31, and the main body of the right end loading and unloading mechanism When the swing arm 15 swings to the right, the base 11 is completely placed Just above the loading table 25;

(2) The main swing arm 15 of the left-end loading and unloading mechanism is controlled to swing to the right, so that the discharge member 10 is located at the center of the table of the press 24, and the stamped workpiece on the press 24 is placed on the discharge member 10 to control the main The swing arm 15 swings to the left to place the base 11 on the upper side of the loading platform 31;

(3) placing the workpiece to be punched on the discharge member 10 of the right-end loading and unloading mechanism, and controlling the main swing arm 15 of the right-end loading and unloading mechanism to swing to the left, so that the discharge member 10 is located at the center of the table of the press 24, Realize loading;

(4) Return to step (2) to execute cyclically.

It also includes the following steps:

(2a) transporting the stamped workpiece from the discharge member 10;

(3a) controlling the main swing arm 15 of the right end loading and unloading mechanism to swing right to directly above the loading platform 25, ready to be loaded again;

In the step (1), the extension lengths of the push-pull rod 32 and the push-pull rod 26 are controlled by the controller to adjust the positions of the loading platform 31 and the loading platform 25; the steps (2) and (3) are performed simultaneously, and the steps are performed. In (2) and (3), the rotation of the motor 5 is controlled by the controller to control the swing direction and angle of the main swing arm 15.

In the working of the invention, the motor 5 works, the motor 5 drives the active crankshaft 7 to rotate, the rotation of the active crankshaft 7 drives the rotation of the driving gear 9, the rotation of the driving gear 9 drives the rotation of the driven gear 2, and the rotation of the driven gear 2 drives The rotation of the movable crankshaft 4, the rotation of the driven crankshaft 4 drives the rotation of the rocker arm 1, the rotation of the rocker arm 1 drives the swing of the main swing arm 15 and the auxiliary swing arm 14, and the swing of the main swing arm 15 and the auxiliary swing arm 14 drives the base. The movement of the base 11 includes the up and down movement in the height direction and the horizontal movement in the longitudinal direction. The base 11 drives the movement of the discharge member 10, and the swing of the main swing arm 15 and the auxiliary swing arm 14 drives the upper and lower sliding of the connecting seat 16. The loading and unloading working process is the same as the loading and unloading method described above, and is not described herein again; the loading and unloading device of the present invention has a simple structure and can realize automatic loading and unloading, and the loading and unloading method of the present invention can realize continuous loading and unloading. The utility model has the advantages of high loading and unloading efficiency, saving time and labor, and improving production efficiency; and can be applied to the work of loading and unloading of the stamping workpiece on the bottom side of the press 24 production.

The present invention is not limited to the above embodiment, and the material for the holding material such as the gripping claws may be provided on the discharge member 10. Based on the technical solutions disclosed in the present invention, those skilled in the art according to the disclosed technical contents, Some substitutions and modifications may be made to some of the technical features without the need for inventive labor, and such substitutions and modifications are within the scope of the invention.

Claims

The loading and unloading device is characterized in that it comprises a loading and unloading mechanism, the loading and unloading mechanism comprises a motor and a base, wherein the motor is connected with an active crankshaft, and the active crankshaft is connected to the upper end of the active connecting rod, the active connection a driven crankshaft is connected to the lower end of the rod, and a driving gear is also connected to the driven crankshaft. The connecting center of the driving link and the driven crankshaft is eccentrically disposed with respect to a connection center of the driving gear and the driven crankshaft. The driving connection has a driven gear, the driven gear is connected to the transmission shaft, and one end of the transmission shaft is connected to one end of the rocker arm; the upper end of the main swing arm and the auxiliary swing arm are respectively hinged on the connecting seat, and the rocker arm is further One end is hinged on the main swing arm, and the other ends of the main swing arm and the auxiliary swing arm are hinged to the base, the main swing arm and the auxiliary swing arm are parallel to each other, and the end of the base is connected with a discharge member for placing materials. The transmission ratio of the driving gear and the driven gear is less than 1.
A loading and unloading device according to claim 1, further comprising a rack, the motor is mounted on a left side of the rack, and one end of the propeller shaft is on a right side of the rack, the active crankshaft, The driven crankshaft and the drive shaft are rotatably mounted on the rack.
The loading and unloading device according to claim 2, wherein the rack is provided with two guide rails in parallel in the vertical direction, and two sliders are connected to the rear side of the connecting bracket, and the slider It can slide along the guide rails.
The loading and unloading device according to claim 3, wherein the rack is provided with a dial, and the other end of the drive shaft is fixed with a pointer for indicating the dial, the dial is concentric with the drive shaft, and the drive shaft The other end is on the left side of the rack.
The loading and unloading device according to claim 4, wherein the base is provided with a column 1 and a column 2, and the lowermost end of the main swing arm is hinged to the column, and the auxiliary swing arm is the most The lower end is hinged to the column.
The loading and unloading device according to claim 5, wherein the upper portion of the rack is provided with a balance bar and a balance rod, and the balance rod is provided with a sliding chamber, and the upper portion of the balance rod can be slid The cavity slides, and the bottom of the balance bar is connected to the connecting seat.
The loading and unloading device according to any one of claims 1 to 6, further comprising a base and a controller, wherein the base is disposed on the left and right sides of the press, and the upper side of the base is provided a movable loading platform and a loading platform, a linear drive 1 and a linear drive 2, wherein the unloading table and the loading platform are respectively disposed on the left and right sides of the press, and one side of each side of the frame of the press is installed The material feeding mechanism, the two loading and unloading mechanisms are staggered and disposed in the width direction, the front side of the rack of the loading and unloading mechanism at the left end faces forward, and the rear side of the rack of the loading and unloading mechanism of the right end faces forward, the linear drive is disposed on one side There is a push-pull rod 1 for reciprocating linear motion, and the linear actuator 2 is provided with a push-pull rod 2 for reciprocating linear motion, the end of the push-pull rod 1 is fixedly connected to the left side of the loading platform, and the push-pull rod 2 The end portion is fixedly connected to the right side of the loading platform, and the lower sides of the loading platform and the loading platform are respectively provided with rollers that can roll along the base; in the width direction, the center of the main swing arm and the auxiliary swing arm The plane formed is at the center of the workbench of the press The vertical plane of the plane; the controller controls the push-pull rod 1, the telescopic extension of the push-pull rod 2, and the rotation of the motor.
The loading and unloading device according to claim 7, wherein the linear actuator 1 and the linear actuator 2 are an electric push rod, a screw stepping motor or an electric cylinder.
The loading and unloading method of the loading and unloading device according to claim 7, comprising the steps of:

(1) Adjust the position of the loading platform and the loading table so that when the main swing arm of the left-end loading and unloading mechanism swings to the left, the base is completely placed on the upper side of the loading platform, and the main swing arm of the right-end loading and unloading mechanism swings to the right. When the base is completely placed directly above the loading table;

(2) Control the main swing arm of the left-end loading and unloading mechanism to swing to the right, so that the discharging member is located at the center of the working table of the press, and the stamped workpiece on the press is placed on the discharging member, and the main swing arm is controlled to swing to the left. The base is placed on the upper side of the loading table;

(3) placing the workpiece to be punched on the discharging member of the right-end loading and unloading mechanism, and controlling the main swing arm of the right-end loading and unloading mechanism to swing to the left, so that the discharging member is located at the center of the working table of the press to realize loading;

(4) Return to step (2) to execute cyclically.
The loading and unloading method according to claim 9, further comprising the steps of:

(2a) transporting the stamped workpiece from the discharge member;

(3a) controlling the main swing arm of the right end loading and unloading mechanism to swing right to the top of the loading platform, ready to be loaded again;

Wherein step (2a) is between step (2) and step (3), and step (3a) is located between step (3) and step (4);

In the step (1), the extension lengths of the push-pull rod 1 and the push-pull rod 2 are controlled by the controller to adjust the positions of the loading platform and the loading platform; the step (2) and the step (3) are performed simultaneously, and the step (2) And in step (3), the rotation of the motor is controlled by the controller to control the swing direction and angle of the main swing arm.