阅读说明：本技术 一种基于机械臂的液压机上料装置及使用方法 (Hydraulic press feeding device based on mechanical arm and using method ) 是由 沈莹杰 韩杰 陈国华 于 2021-03-25 设计创作，主要内容包括：本发明提供了一种基于机械臂的液压机上料装置及使用方法,属于冷挤压上料设备技术领域。本发明包括固定梁、滑槽板、两个限位套管、调节机构和移动机构,固定梁的左右侧面上沿长度方向开设有滑槽孔,固定梁下侧面的前端连接有第二电磁铁,滑槽板水平滑动设置在滑槽孔内,滑槽板上开设有穿孔,穿孔内插设有滑杆,滑杆的下端固设有下限位板,滑杆的上端固设有上限位板,位于滑槽板和下限位板之间的滑杆上套设有复位弹簧,两个限位套管分别固设在滑槽板的下侧面上,限位套管内滑动设置有第一电磁铁,调节机构能够同时调节两个第一电磁铁到滑槽板的距离,移动机构能够带动滑槽板沿着滑槽孔移动。本发明能够利用机械臂快速上料和取料,提高压制效率。(The invention provides a mechanical arm-based hydraulic press feeding device and a using method thereof, and belongs to the technical field of cold extrusion feeding equipment. The invention comprises a fixed beam, a chute plate, two limit sleeves, an adjusting mechanism and a moving mechanism, wherein the left side and the right side of the fixed beam are provided with chute holes along the length direction, the front end of the lower side of the fixed beam is connected with a second electromagnet, the chute plate is horizontally arranged in the chute holes in a sliding manner, the chute plate is provided with a through hole, a sliding rod is inserted into the through hole, the lower end of the sliding rod is fixedly provided with a lower limit plate, the upper end of the sliding rod is fixedly provided with an upper limit plate, the sliding rod between the chute plate and the lower limit plate is sleeved with a reset spring, the two limit sleeves are respectively fixedly arranged on the lower side of the chute plate, the limit sleeves are internally provided with first electromagnets in a sliding manner, the adjusting mechanism can simultaneously adjust the distances from the two first electromagnets to the chute plate, and the moving mechanism can drive the chute plate to move along the chute holes. The invention can utilize the mechanical arm to quickly feed and take materials, thereby improving the pressing efficiency.)

1. The utility model provides a hydraulic press loading attachment based on arm, hydraulic press (8) include die (82) and moulding-die (81), the downside of moulding-die (81) is equipped with pressure head (811), the side is equipped with recess (821) of placing part stock (9) on die (82), its characterized in that, loading attachment includes: the rear end of the fixed beam (1) is fixedly provided with a connecting plate (11), the left side surface and the right side surface of the fixed beam (1) are provided with sliding groove holes (12) along the length direction, the sliding groove holes (12) are in a long strip shape, and the front end of the lower side surface of the fixed beam (1) is connected with a first electromagnet (13) through a pull rope (132);

the sliding chute plate (2) is horizontally arranged in the sliding chute hole (12) in a sliding mode, a through hole (25) is formed in the sliding chute plate (2) located on the right side of the fixed beam (1), a sliding rod (251) is inserted into the through hole (25), the lower end of the sliding rod (251) extends to the lower portion of the sliding chute plate (2), the end portion of the sliding rod (251) is fixedly provided with a lower limiting plate (253), the upper end of the sliding rod (251) extends to the upper portion of the sliding chute plate (2), the end portion of the sliding rod (251) is fixedly provided with an upper limiting plate (252), a return spring (254) is sleeved on the sliding rod (251), and the upper end and the lower end of the return spring (254) are fixedly connected with the sliding chute plate (2) and the lower limiting plate (253) respectively;

the two limiting sleeves (22) are respectively and vertically fixedly arranged on the lower side surface of the sliding groove plate (2) on the right side of the fixed beam (1), the two limiting sleeves (22) are positioned on the front side and the rear side of the sliding rod (251), the two limiting sleeves (22) and the sliding rod (251) are positioned in the same vertical plane, a second electromagnet (221) is arranged in the limiting sleeves (22) in a sliding mode, and the lower end of the second electromagnet (221) extends out of the lower end of the limiting sleeve (22);

the adjusting mechanism is arranged on the sliding groove plate (2) and can adjust the distance between the two second electromagnets (221) and the sliding groove plate (2) at the same time;

the moving mechanism is arranged on the fixed beam (1) and can drive the sliding groove plate (2) to move along the sliding groove hole (12).

2. The mechanical arm based hydraulic machine feeding device as claimed in claim 1, wherein the adjusting mechanism comprises:

the fixing nut (23) is vertically and fixedly arranged on the right side edge of the chute plate (2), and a butterfly bolt (24) is connected with an internal thread of the fixing nut (23);

the lower end of the butterfly bolt (24) extends out of the fixed nut (23), and the end part of the butterfly bolt is rotatably connected with the upper side surface of the movable plate (4);

two connecting rods (41), two spout mouth (222), two have all been seted up along length direction to one side lower extreme that fixed beam (1) was kept away from in spacing sleeve pipe (22) connecting rod (41) and two spout mouths (222) one-to-one, the one end of connecting rod (41) is passed corresponding spout mouth (222) and tip and is linked firmly with second electro-magnet (221), and the other end links firmly with fly leaf (4), two connecting rod (41) are in same horizontal plane.

3. The mechanical arm based hydraulic machine feeding device as claimed in claim 2, wherein the moving mechanism comprises:

the front end and the rear end of the left side surface of the fixed beam (1) are respectively and fixedly provided with two supporting plates (31), the screw (3) is rotatably arranged between the two supporting plates (31), and the length direction of the screw (3) is consistent with that of the fixed beam (1);

the threaded sleeve (21) is in threaded connection with the outer side of the screw rod (3), and the outer side of the threaded sleeve (21) is fixedly connected with the left side edge of the chute plate (2);

the first motor (21), first motor (21) sets firmly on one of them backup pad (31), first motor (21) and screw rod (3) transmission are connected.

4. The mechanical arm-based hydraulic press feeding device is characterized by further comprising a dust suction mechanism, wherein the dust suction mechanism is arranged on the fixed beam (1) and can simultaneously suck impurities in the groove (821) when the first electromagnet (13) sucks the part blank (9) in the groove (821).

5. The mechanical arm based hydraulic machine feeding device is characterized in that the dust suction mechanism comprises:

the horn hole (131) is formed in the first electromagnet (13) in a penetrating mode, and the lower end opening of the horn hole (131) is larger than the upper end opening of the horn hole;

the piston cylinder (6) is fixedly arranged on the upper side face of the fixed beam (1) in a horizontal mode, a piston (61) is arranged in the piston cylinder (6) in a sliding mode, the piston (61) divides the piston cylinder (6) into a second cavity (612) and a first cavity (611) from front to back in sequence, a piston rod (62) is arranged at the rear end of the piston cylinder (6) in a sliding mode, the front end of the piston rod (62) extends into the first cavity (611) and the end of the piston rod is fixedly connected with the piston (61), an exhaust hole (613) is formed in the rear end of the first cavity (611), the second cavity (612) is communicated with the upper end of the horn hole (131) through a connecting structure, and the connecting structure can store pumped impurities;

the driving structure is arranged on the upper side face of the fixed beam (1), and the driving structure can drive the piston (61) to slide back and forth.

6. The mechanical arm based hydraulic machine feeding device as claimed in claim 5, wherein the connecting structure comprises:

the air storage box (7) is fixedly arranged on the upper side face of the fixed beam (1), an air storage cavity (71) is arranged in the air storage box (7), and a filter screen (711) is arranged in the middle of the air storage cavity (71);

one end of the first air pipe (72) is fixedly connected with the front end of the piston cylinder (6), the other end of the first air pipe (72) is fixedly connected with the rear side face of the air storage box (7), the second cavity (612) is communicated with the air storage cavity (71) through the first air pipe (72), and a first electromagnetic valve (721) is arranged on the first air pipe (72);

one end of the hose (133) is fixedly connected to the front side face of the air storage box (7), the other end of the hose (133) is fixedly connected with the upper side face of the first electromagnet (13), and the air storage cavity (71) is communicated with the upper end of the horn hole (131) through the hose (133);

one end of the second air pipe (73) is fixedly connected to the front end of the piston cylinder (6), the other end of the second air pipe (73) is communicated with the hose (133), and a second electromagnetic valve (731) is arranged on the second air pipe (73).

7. The mechanical arm based hydraulic machine feeding device as claimed in claim 6, wherein the driving structure comprises:

the third motor (65), the said third motor (65) is fixed on the upper side of the fixed beam (1);

the piston rod (62) is fixedly provided with a top plate (621) at one end extending out of the piston cylinder (6), one end of the first connecting rod (63) is hinged to one side face, far away from the piston cylinder (6), of the top plate (621), the other end of the first connecting rod (63) is hinged to one end of the second connecting rod (64), and the other end of the second connecting rod (64) is hinged to an output shaft of the third motor (65).

8. The mechanical arm-based hydraulic machine feeding device is characterized by further comprising a cleaning mechanism, wherein the cleaning mechanism is arranged on the fixed beam (1), and the cleaning mechanism can clean impurities adsorbed on the squeeze film (71).

9. The mechanical arm based hydraulic machine loading device as claimed in claim 8, wherein the cleaning mechanism comprises:

the vertical plate (5) is vertically and fixedly arranged on the upper side surface of the fixed beam (1), one side, close to the fixed nut (23), of the vertical plate (5) is rotatably provided with a first rotating shaft (51), and a brush wheel (52) is fixedly arranged on the first rotating shaft (51);

the second motor (54) is fixedly arranged on one side, away from the fixing nut (23), of the vertical plate (5), and the second motor (54) is in transmission connection with the first rotating shaft (51).

10. The use method of the mechanical arm-based hydraulic press feeding device is characterized by comprising the following steps of:

s1, adjusting the distance between the two second electromagnets (221) and the chute plate (2) through an adjusting mechanism according to the thickness of the part blank (9), so that the magnetism of the two second electromagnets (221) can overcome the elastic force of the return spring (254);

s2, moving the chute plate (2) through the moving mechanism according to the feeding position of the part blank (9), so that the two second electromagnets (221) on the mechanical arm (83) can rapidly move to the position above the part blank (9);

s3, the two second electromagnets (221) are started simultaneously to suck the part blank (9), the lower limiting plate (253) pushes the sliding rod (251) to move upwards, the return spring (254) is compressed, the part blank (9) is moved to the position right above the groove (821) through the mechanical arm (83), the two second electromagnets (221) are closed, the sliding rod (251) and the lower limiting plate (253) are pushed to move downwards under the action of the return spring (254), and the teaching blank (9) is sent into the groove (821);

s4, pressing the part blank (9) in the groove (821) downwards by a pressing head (811) of the pressing die (81), simultaneously grabbing the next part blank (9) by the mechanical arm (83), moving the first electromagnet (13) to the position above the groove (821) through the mechanical arm (83) after pressing is completed, starting the first electromagnet (821), sucking the pressed part blank (9) and hanging the part blank away from the groove (821);

and S5, hanging the pressed part blank (9), putting the next part blank (9) on the two second electromagnets (221) into the groove (821), and pressing again.

Technical Field

The invention belongs to the technical field of cold extrusion feeding equipment, and relates to a hydraulic press feeding device based on a mechanical arm and a using method.

Background

In the field of automobile manufacturing, part of part blanks need to be manufactured through cold extrusion of a hydraulic machine (such as a valve bridge), the part blanks are manually placed into a mold groove of the hydraulic machine, then the hydraulic machine is started to press the part blanks downwards, after pressing is completed, the parts are manually taken out, the mold groove and a pressure head are manually cleaned, new parts are placed, and the process is repeated.

At present, some companies start to adopt mechanical arms to replace manual operation, a grabbing device is arranged at the end of each mechanical arm to grab a part blank firstly, the part blank is conveyed into a groove of a die, then the part blank is taken out by the mechanical arms after pressing is completed, the mechanical arms grab the next part blank, the operation process is more, the pressing time of the single part blank is longer, time and labor are wasted, and the pressing efficiency is low.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a mechanical arm-based hydraulic press feeding device and a use method thereof.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a hydraulic press loading attachment based on arm, the hydraulic press includes die and moulding-die, the downside of moulding-die is equipped with the pressure head, the side is equipped with the recess of placing the part stock on the die, loading attachment includes: the rear end of the fixed beam is fixedly provided with a connecting plate, the left side surface and the right side surface of the fixed beam are provided with sliding groove holes along the length direction, the sliding groove holes are in a long strip shape, and the front end of the lower side surface of the fixed beam is connected with a first electromagnet through a pull rope;

the sliding chute plate is horizontally arranged in the sliding chute hole in a sliding mode, a through hole is formed in the sliding chute plate on the right side of the fixed beam, a sliding rod is inserted into the through hole, the lower end of the sliding rod extends to the lower portion of the sliding chute plate, a lower limiting plate is fixedly arranged at the end portion of the sliding rod, the upper end of the sliding rod extends to the upper portion of the sliding chute plate, an upper limiting plate is fixedly arranged at the end portion of the sliding rod, a reset spring is sleeved on the sliding rod, and the upper end and the lower end of the reset spring are fixedly connected with the sliding chute plate and the lower limiting plate respectively;

the two limiting sleeves are respectively and vertically fixed on the lower side surface of the chute plate on the right side of the fixed beam, the two limiting sleeves are positioned on the front side and the rear side of the sliding rod, the two limiting sleeves and the sliding rod are positioned in the same vertical plane, a second electromagnet is arranged in the limiting sleeves in a sliding mode, and the lower end of the second electromagnet extends out of the lower end of the limiting sleeve;

the adjusting mechanism is arranged on the sliding groove plate and can adjust the distance between the two second electromagnets and the sliding groove plate simultaneously;

the moving mechanism is arranged on the fixed beam and can drive the sliding groove plate to move along the sliding groove hole.

In the above mentioned mechanical arm based hydraulic press loading device, the adjusting mechanism includes:

the fixing nut is vertically and fixedly arranged on the right side edge of the sliding groove plate, and a butterfly bolt is connected with the fixing nut through an internal thread;

the lower end of the butterfly bolt extends out of the fixing nut, and the end part of the butterfly bolt is rotatably connected with the upper side surface of the movable plate;

two connecting rods, two the spout mouth, two have all been seted up along length direction to one side lower extreme that fixed beam was kept away from to spacing sleeve pipe the connecting rod and two spout mouth one-to-one, the one end of connecting rod is passed corresponding spout mouth and tip and is linked firmly with the second electro-magnet, and the other end links firmly with the fly leaf, two the connecting rod is in same horizontal plane.

In the above mentioned mechanical arm based hydraulic press loading device, the moving mechanism includes:

the front end and the rear end of the left side surface of the fixed beam are respectively and fixedly provided with two supporting plates, the screw is rotatably arranged between the two supporting plates, and the length direction of the screw is consistent with the length direction of the fixed beam;

the threaded sleeve is in threaded connection with the outer side of the screw rod, and the outer side of the threaded sleeve is fixedly connected with the left side edge of the chute plate;

the first motor is fixedly arranged on one of the supporting plates and is in transmission connection with the screw.

In the above hydraulic press feeding device based on the mechanical arm, the hydraulic press feeding device further comprises a dust suction mechanism, the dust suction mechanism is arranged on the fixed beam, and when the first electromagnet sucks the part blanks in the grooves, the dust suction mechanism can simultaneously suck impurities in the grooves.

In the above mentioned hydraulic press loading device based on mechanical arm, the dust suction mechanism includes:

the horn hole is formed in the first electromagnet in a penetrating mode, and an opening at the lower end of the horn hole is larger than an opening at the upper end of the horn hole;

the piston cylinder is horizontally and fixedly arranged on the upper side face of the fixed beam, a piston is arranged in the piston cylinder in a sliding mode, the piston sequentially divides the piston cylinder into a second cavity and a first cavity from front to back, a piston rod is arranged at the rear end of the piston cylinder in a sliding mode, the front end of the piston rod extends into the first cavity, the end portion of the piston rod is fixedly connected with the piston, an exhaust hole is formed in the rear end of the first cavity, the second cavity is communicated with the upper end of the horn hole through a connecting structure, and the connecting structure can store pumped impurities;

the driving structure is arranged on the upper side face of the fixed beam and can drive the piston to slide back and forth.

In the above mentioned mechanical arm based hydraulic press loading device, the connection structure includes:

the air storage tank is fixedly arranged on the upper side face of the fixed beam, an air storage cavity is arranged in the air storage tank, and a filter screen is arranged in the middle of the air storage cavity;

one end of the first air pipe is fixedly connected to the front end of the piston cylinder, the other end of the first air pipe is fixedly connected to the rear side face of the air storage box, the second cavity is communicated with the air storage cavity through the first air pipe, and a first electromagnetic valve is arranged on the first air pipe;

one end of the hose is fixedly connected to the front side face of the gas storage box, the other end of the hose is fixedly connected with the upper side face of the first electromagnet, and the gas storage cavity is communicated with the upper end of the horn hole through the hose;

and one end of the second air pipe is fixedly connected with the front end of the piston cylinder, the other end of the second air pipe is communicated with the hose, and a second electromagnetic valve is arranged on the second air pipe.

In the above mentioned mechanical arm based hydraulic press loading device, the driving structure includes:

the third motor is fixedly arranged on the upper side surface of the fixed beam;

the piston rod is fixedly provided with a top plate at one end extending out of the piston cylinder, one end of the first connecting rod is hinged to one side face, far away from the piston cylinder, of the top plate, the other end of the first connecting rod is hinged to one end of the second connecting rod, and the other end of the second connecting rod is hinged to an output shaft of the third motor.

In the above hydraulic press feeding device based on the mechanical arm, the hydraulic press feeding device further comprises a cleaning mechanism, the cleaning mechanism is arranged on the fixed beam, and the cleaning mechanism can clear away impurities adsorbed on the pressing film.

In the above mentioned hydraulic press loading device based on mechanical arm, the cleaning mechanism includes:

the vertical plate is vertically and fixedly arranged on the upper side surface of the fixed beam, one side, close to the fixed nut, of the vertical plate is rotatably provided with a first rotating shaft, and a brush wheel is fixedly arranged on the first rotating shaft;

and the second motor is fixedly arranged on one side of the vertical plate, which is far away from the fixing nut, and is in transmission connection with the first rotating shaft.

A use method of a mechanical arm-based hydraulic press feeding device comprises the following steps:

s1, adjusting the distance between the two second electromagnets and the chute plate through an adjusting mechanism according to the thickness of the part blank, so that the magnetism of the two second electromagnets can overcome the elasticity of the return spring;

s2, moving the chute plate through the moving mechanism according to the feeding position of the part blank to enable the two second electromagnets on the mechanical arm to move above the part blank quickly;

s3, starting the two second electromagnets simultaneously to suck the part blank, enabling the lower limiting plate to push the sliding rod to move upwards, compressing the return spring, moving the part blank to the position right above the groove through the mechanical arm, closing the two second electromagnets, pushing the sliding rod and the lower limiting plate to move downwards under the action of the return spring, and feeding the teaching blank into the groove;

s4, pressing the part blank in the groove downwards by a pressing head of the pressing die, simultaneously grabbing the next part blank by the mechanical arm again, moving the first electromagnet to the position above the groove through the mechanical arm after pressing is finished, starting the first electromagnet, sucking the pressed part blank, and hanging the part blank away from the groove;

and S5, when the pressed part blank is lifted away, placing the next part blank on the two second electromagnets into the groove, and pressing again.

Compared with the prior art, the invention has the following advantages:

1. the feeding device is fixed at the end part of the mechanical arm, the distance between the sliding chute plate and the first electromagnet is changed through the moving mechanism according to the distance from the groove on the female die to the outer side of the female die, so that the distance from the sliding rod to the first electromagnet is larger than the distance from the groove to the outer side of the female die, in an initial state, the lower limiting plate at the lower end of the sliding rod is positioned below the second electromagnet under the action of the reset spring, the distance from the second electromagnet to the sliding chute plate is changed through the adjusting mechanism according to the size of the part blank, when the size of the part blank is larger, the attraction force of the two second electromagnets is larger, therefore, the distance between the two second electromagnets and the lower limiting plate needs to be increased, the situation that the part blank cannot be pushed downwards into the groove of the female die due to too large attraction force is avoided, when the size of the part blank is smaller, the attraction force of the two second electromagnets is smaller, therefore, the distance between the two second electromagnets and the lower limiting plate needs to be reduced, the attraction of the two second electromagnets to the part blank is increased, and the part blank is prevented from sliding off in the moving process;

2. when the mechanical arm needs to grab a part blank, the two second electromagnets are started, so that the two second electromagnets and the lower limiting plate are close to the part blank, the lower limiting plate is firstly contacted with the part blank, the sliding rod moves upwards, the return spring is compressed, when the two second electromagnets and the lower limiting plate are simultaneously contacted with the part blank, the part blank is firmly sucked, the part blank is driven to move to the front of the female die by the mechanical arm, the first electromagnet is driven to move downwards to be close to the part blank after the pressing in the groove, the first electromagnet is started to suck the part blank, then the part blank is driven out of the groove to move towards the outer side of the female die, when the part blank on the first electromagnet moves to the outer side of the female die, the part blanks on the two second electromagnets are positioned right above the groove, at the moment, the first electromagnet is closed, the part blank after the pressing loses attraction force and falls out of the female die, informing the mechanical arm to move downwards, placing the part blanks into the groove, closing the two second electromagnets to finish one-time material taking and feeding, returning the mechanical arm to grab the next part blank when the part blanks in the groove are pressed, and continuously finishing the material taking and feeding actions by only one mechanical arm in the pressing process, so that the pressing interval time is shortened, and the pressing efficiency is improved;

3. because the two second electromagnets are fixedly connected with the movable plate through the connecting rod, when the heights of the two second electromagnets are required to be reduced, the butterfly nut can be rotated downwards, the movable plate is pushed to drive the two second electromagnets to move downwards, and the operation is simple; in addition, the two connecting rods are arranged in the two sliding groove openings in a sliding manner, and the sliding groove openings limit the movable plate to rotate, so that the second electromagnet can only slide up and down along the sliding groove openings;

4. when the sliding groove plate needs to be driven to move, the first motor is started to drive the screw rod to rotate, and the threaded sleeve is fixedly connected to the sliding groove plate, so that the sliding groove plate is limited by the sliding groove hole and cannot rotate, the threaded sleeve can only move along the length direction of the screw rod, meanwhile, the sliding groove plate can only slide along the direction of the sliding groove hole, the moving position of the threaded sleeve can be accurately controlled through the rotation of the screw rod, and the structure is simple;

5. when the pressing head presses the part blank downwards, powder impurities inevitably appear in the groove, and in order to not influence the placing position of the next part blank, the impurities in the groove need to be removed after each pressing, so that the pressing precision is improved; when the first electromagnet is close to the part blank which is pressed in the groove, the driving structure is started to drive the piston to move into the first cavity, gas in the first cavity is discharged through the exhaust hole, negative pressure is formed in the second cavity, powder impurities at the lower end of the horn hole are sucked through the connecting structure, the powder impurities are sucked into the connecting structure, and the situation that the impurities are accumulated in the groove to affect the pressing of the part blank is avoided;

6. the piston is driven to move towards the first cavity through the driving structure, negative pressure is formed in the second cavity, the first electromagnet on the first air pipe is opened, the second electromagnet on the second air pipe is closed, impurities below the horn hole are sucked through the first air pipe and the hose, the impurities are sucked into the air storage cavity, when the pressed part blank is conveyed to the outer side of the female die, the first electromagnet is closed, the second electromagnet on the second air pipe is opened, the first electromagnet on the first air pipe is closed, the piston is driven to move towards the second cavity through the driving structure, air in the second cavity is discharged into the hose, and then the part blank is downwards sprayed out through the horn hole to push the part blank to be separated from the first electromagnet;

7. when the impurities in the gas storage cavity are more, the second electromagnet on the second gas pipe can be closed, the first electromagnet on the first gas pipe is opened, the driving structure drives the piston to move towards the second cavity, the gas in the second cavity is discharged into the gas storage cavity, then the impurities in the gas storage cavity are discharged through the hose, and the phenomenon that the pumping effect is influenced by the accumulation of the impurities in the gas storage cavity is avoided;

8. the third motor is started to drive the second connecting rod to rotate, the piston rod and the piston are driven to move back and forth through the first connecting rod, the pressure in the second cavity is changed, the suction and the discharge of impurities are realized, and the structure is simple;

9. the part blank needs to be subjected to phosphating treatment before pressing, so that a protective film is formed on the surface of the part blank, the friction force of extrusion is reduced, but the film is adhered to the pressing head in the pressing process to influence the pressing precision of the pressing head, and the pressing head needs to be simply cleaned after each pressing; when the part stock after first electro-magnet attraction suppression was accomplished upwards shifted out the recess, brush wheel contact pressure head this moment starts the second motor, drives the brush wheel and rotates, clears away the impurity of adhesion on the pressure head, removes the trouble of clearing up the pressure head alone from, has shortened the suppression time.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 4 is a cross-sectional view at C-C of FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 2 at D;

fig. 6 is an operating state diagram of the present invention.

In the figure, 1, a fixed beam; 11. a connecting plate; 12. a sliding slot hole; 13. a second electromagnet; 131. a horn hole; 132. pulling a rope; 133. a hose; 2. a chute plate; 21. a threaded bushing; 22. a limiting sleeve; 221. a first electromagnet; 222. a chute opening; 23. fixing a nut; 24. a butterfly bolt; 25. perforating; 251. a slide bar; 252. an upper limiting plate; 253. a lower limiting plate; 254. a return spring; 3. a screw; 31. a support plate; 32. a first motor; 4. a movable plate; 41. a connecting rod; 5. a vertical plate; 51. a first rotating shaft; 52. a brush wheel; 53. a fixing plate; 54. a second motor; 6. a piston cylinder; 61. a piston; 611. a first cavity; 612. a second cavity; 613. an exhaust hole; 62. a piston rod; 621. a top plate; 63. a first link; 64. a second link; 65. a third motor; 7. a gas storage tank; 71. a gas storage cavity; 711. a filter screen; 72. a first air pipe; 721; a first electromagnet; 73. a second air pipe; 731. a second electromagnet; 8. a hydraulic press; 81. pressing the die; 811. a pressure head; 82. a female die; 821. a groove; 83. a mechanical arm; 9. a part blank.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, the hydraulic press feeding device based on a mechanical arm, the hydraulic press 8 comprises a pressing die 81 and a concave die 82, the lower side surface of the pressing die 81 is provided with a pressing head 811, and the upper side surface of the concave die 82 is provided with a groove 821.

Preferably, the robot arm 83 is a six-axis robot arm.

The feeding device comprises a fixed beam 1, a chute plate 2, two limiting sleeves 22, an adjusting mechanism and a moving mechanism.

Fixed beam 1's rear end is equipped with connecting plate 11 admittedly, fixed beam 1 can dismantle the connection through connecting plate 11 and arm 83, fixed beam 1 has seted up slotted hole 12 along length direction on the side about, slotted hole 12 is rectangular form, the front end of fixed beam 1 downside is connected with first electro-magnet 13 through stay cord 132.

Under the action of the gravity of the first electromagnet 13, the pulling rope 132 is in a tensioned state, and when the first electromagnet 13 moves downwards to be close to the upper side face of the concave die 82, the pulling rope 132 can avoid the first electromagnet 13 from being in rigid contact with the upper side face of the concave die 82.

The chute board 2 is horizontally arranged in the chute hole 12 in a sliding mode, a through hole 25 is formed in the chute board 2 on the right side of the fixed beam 1, a sliding rod 251 is inserted into the through hole 25, the lower end of the sliding rod 251 extends to the lower portion of the chute board 2, a lower limiting board 253 is fixedly arranged at the end portion of the sliding rod 251, an upper limiting board 252 is fixedly arranged at the upper end of the sliding rod 251, the upper limiting board 252 is arranged above the chute board 2, an offsetting spring 254 is sleeved on the sliding rod 251, and the upper end and the lower end of the offsetting spring 254 are fixedly connected with the chute board 2 and the lower limiting board 253 respectively.

Two limit sleeve 22 sets firmly perpendicularly respectively on the downside of the spout board 2 that is located fixed beam 1 right side, two limit sleeve 22 is located the front and back both sides of slide bar 251, two limit sleeve 22 and slide bar 251 all are in same vertical plane, it is provided with second electro-magnet 221 to slide in limit sleeve 22, the lower extreme of limit sleeve 22 is stretched out to the lower extreme of second electro-magnet 221.

The adjusting mechanism is arranged on the chute plate 2, and the adjusting mechanism can adjust the distance from the two second electromagnets 221 to the chute plate 2 at the same time.

The moving mechanism is arranged on the fixed beam 1 and can drive the sliding chute plate 2 to move along the sliding chute hole 12.

The feeding device is fixed at the end of the mechanical arm 83, the distance between the chute plate 2 and the first electromagnet 13 is changed through the moving mechanism according to the distance from the groove 821 on the female die 82 to the outer side of the female die 82, the distance from the slide rod 251 to the first electromagnet 13 is larger than the distance from the groove 821 to the outer side of the female die 82, in an initial state, the lower limiting plate 253 at the lower end of the slide rod 251 is positioned below the second electromagnet 221 under the action of the return spring 254, the distance from the second electromagnet 221 to the chute plate 2 is changed through the adjusting mechanism according to the size of the part blank 9, when the size of the part blank 9 is larger, the attraction force exerted by the two second electromagnets 221 is larger, therefore, the distance between the two second electromagnets 221 and the lower limiting plate needs to be increased, the situation that the part blank 9 cannot be pushed downwards into the groove 821 of the female die 82 due to too large attraction force is avoided, when the size of the part blank 9 is smaller, the attraction force of the two second electromagnets 221 is small, so that the distance between the two second electromagnets 221 and the lower limiting plate 253 needs to be reduced, the attraction force of the two second electromagnets 221 on the part blank 9 needs to be increased, and the part blank 9 is prevented from sliding off in the moving process.

When the mechanical arm 83 needs to grab the part blank 9, the two second electromagnets 221 are started to enable the two second electromagnets 221 and the lower limiting plate 253 to be close to the part blank 9, the lower limiting plate 253 contacts the part blank 9 first, the sliding rod 251 moves upwards, the return spring 254 is compressed, when the two second electromagnets 221 and the lower limiting plate 253 contact the part blank 9 simultaneously, the part blank 9 is firmly sucked, the part blank 9 is moved to the front of the female die 82 by the mechanical arm 83, the first electromagnet 13 is enabled to be close to the part blank 9 which is pressed in the groove 821 downwards, the first electromagnet 13 is started to suck the part blank 9 and then takes the groove 821 out to move towards the outer side of the female die 82, when the part blank 9 on the first electromagnet 13 moves to the outer side of the female die 82, the part blanks 9 on the two second electromagnets 221 are located right above the groove 821, at this time, the first electromagnet 13 is closed, the part blank 9 after being pressed loses attraction and falls out of the female die 82, the mechanical arm 83 is controlled to move downwards, the part blank 9 is placed into the groove, the two second electromagnets 221 are closed, one-time material taking and feeding is completed, when the part blank 9 in the groove 821 is pressed, the mechanical arm 83 returns to grab the next part blank 9, material taking and feeding actions are continuously completed through only one mechanical arm 83 in the pressing process, the pressing interval time is shortened, and the pressing efficiency is improved.

Specifically, the adjusting mechanism includes a fixed nut 23, a movable plate 4, and two connecting rods 41.

The fixing nut 23 is vertically and fixedly arranged on the right side edge of the chute plate 2, and a butterfly bolt 24 is connected to the inner thread of the fixing nut 23.

The lower end of the butterfly bolt 24 extends out of the fixed nut 23 and the end is rotatably connected with the upper side surface of the movable plate 4.

The lower end of one side of the two limiting sleeves 22 far away from the fixed beam 1 is provided with two sliding groove openings 222 along the length direction, the two connecting rods 41 correspond to the two sliding groove openings 222 one by one, one end of each connecting rod 41 penetrates through the corresponding sliding groove opening 222, the end part of each connecting rod is fixedly connected with the second electromagnet 221, the other end of each connecting rod 41 is fixedly connected with the movable plate 4, and the two connecting rods 41 are located in the same horizontal plane.

Because the two second electromagnets 221 are fixedly connected with the movable plate 4 through the connecting rod 41, when the heights of the two second electromagnets 221 need to be reduced, the butterfly nut 24 can be rotated downwards to push the movable plate 4 to drive the two second electromagnets 221 to move downwards at the same time, so that the operation is simple; in addition, the two connecting rods 41 are slidably disposed in the two sliding slot openings 222, and the sliding slot openings 222 limit the rotation of the movable plate 4, so that the second electromagnet 221 can only slide up and down along the sliding slot openings 222.

Specifically, the moving mechanism includes a screw 3, a threaded sleeve 21, and a first motor 21.

Two supporting plates 31 are fixedly arranged at the front end and the rear end of the left side face of the fixed beam 1 respectively, the screw rod 3 is rotatably arranged between the two supporting plates 31, and the length direction of the screw rod 3 is consistent with that of the fixed beam 1.

The threaded sleeve 21 is in threaded connection with the outer side of the screw rod 3, and the outer side of the threaded sleeve 21 is fixedly connected with the left side edge of the chute plate 2.

The first motor 21 is fixedly arranged on one of the support plates 31, and the first motor 21 is in transmission connection with the screw 3.

When the chute board 2 needs to be driven to move, the first motor 32 is started to drive the screw rod 3 to rotate, the threaded sleeve 21 is fixedly connected to the chute board 2, the chute board 2 is limited by the chute hole 12 and cannot rotate, so that the threaded sleeve 21 can only move along the length direction of the screw rod 3, meanwhile, the chute board 2 can only slide along the direction of the chute hole 12, the moving position of the threaded sleeve 21 can be accurately controlled through the rotation of the screw rod 3, and the structure is simple.

Specifically, the dust suction mechanism is provided on the fixed beam 1, and is capable of simultaneously sucking the foreign substances in the groove 821 when the first electromagnet 13 sucks the blank 8 in the groove 821.

When the pressing head 81 presses the part blank 9 downward, some powder impurities inevitably appear in the groove 821, and in order not to affect the placement position of the next part blank 9, the impurities in the groove 821 need to be removed after each pressing, thereby improving the pressing precision.

Specifically, the dust suction mechanism includes a bell mouth 131, a piston cylinder 6 and a driving structure.

The horn hole 131 is formed in the first electromagnet 13 in a penetrating manner, the lower end opening of the horn hole 131 is larger than the upper end opening, preferably, the first electromagnet 13 is cylindrical, and the horn hole 131 is formed in the first electromagnet 13 in a coaxial manner.

The piston cylinder 6 is horizontally and fixedly arranged on the upper side face of the fixed beam 1, a piston 61 is arranged in the piston cylinder 6 in a sliding mode, the piston 61 sequentially divides the piston cylinder 6 into a second cavity 612 and a first cavity 611 from front to back, a piston rod 62 is arranged at the rear end of the piston cylinder 6 in a sliding mode, the front end of the piston rod 62 extends into the first cavity 611, the end of the piston rod is fixedly connected with the piston 61, an exhaust hole 613 is formed in the rear end of the first cavity 611, the second cavity 612 is communicated with the upper end of the horn hole 131 through a connecting structure, and the connecting structure can store sucked impurities.

The driving structure is arranged on the upper side surface of the fixed beam 1, and the driving structure can drive the piston 61 to slide back and forth.

When the first electromagnet is close to the part blank 9 which is pressed in the groove 821, the driving structure is started to drive the piston 61 to move into the first cavity 611, the gas in the first cavity 611 is exhausted through the exhaust hole 613, negative pressure is formed in the second cavity 612, powder impurities at the lower end of the horn hole 131 are sucked through the connecting structure, the powder impurities are sucked into the connecting structure, and the situation that the impurities are accumulated in the groove 821 to affect the pressing of the part blank 9 is avoided.

Specifically, the connection structure includes the air tank 7, the first air pipe 72, the hose 133, and the second air pipe 73.

The gas storage tank 7 is fixedly arranged on the upper side surface of the fixed beam 1, and a gas storage cavity 71 is arranged in the gas storage tank 7.

One end of the first air pipe 72 is fixedly connected to the front end of the piston cylinder 6, the other end of the first air pipe is fixedly connected to the rear side face of the air storage tank 7, the second cavity 612 is communicated with the air storage cavity 71 through the first air pipe 72, and the first air pipe 72 is provided with a first electromagnetic valve 721.

One end of the hose 133 is fixedly connected to the front side surface of the gas storage tank 7, the other end of the hose is fixedly connected to the upper side surface of the first electromagnet 13, and the gas storage cavity 71 is communicated with the upper end of the horn hole 131 through the hose 133.

One end of the second air pipe 73 is fixedly connected to the front end of the piston cylinder 6, the other end of the second air pipe 73 is communicated with the hose 133, and a second electromagnetic valve 731 is arranged on the second air pipe 73.

The piston 61 is driven by the driving structure to move towards the first cavity 611, negative pressure is formed in the second cavity 612, the first electromagnet 721 on the first air pipe 72 is opened, the second electromagnet 731 on the second air pipe 73 is closed, impurities below the horn hole 131 are sucked through the first air pipe 72 and the hose 133 and are sucked into the air storage cavity 71, when the pressed part blank 9 is conveyed to the outer side of the female die 82, the first electromagnet 13 is closed, the second electromagnet 731 on the second air pipe 73 is opened, the first electromagnet 721 on the first air pipe 72 is closed, the piston 61 is driven by the driving structure to move towards the second cavity 611, gas in the second cavity 612 is discharged into the hose 133, and then the part blank 9 is sprayed downwards through the horn hole 131 to push the part blank 9 to be separated from the first electromagnet 13.

When the impurities in the gas storage cavity 71 are more, the second electromagnet 731 on the second gas pipe 73 can be closed, the first electromagnet 721 on the first gas pipe 72 is opened, the piston 61 is driven by the driving structure to move towards the second cavity 612, the gas in the second cavity 612 is discharged into the gas storage cavity 71, then the impurities in the gas storage cavity 71 are discharged through the hose 133, and the phenomenon that the pumping effect is influenced by the accumulation of the impurities in the gas storage cavity 71 is avoided.

Specifically, the air storage cavity 71 is in a conical shape with a large middle and two small ends, and a filter screen 711 is fixedly arranged in the middle of the air storage cavity 71.

Because the air storage cavity 71 is in a conical shape with a large middle and two small ends, impurities sucked by the hose 133 are blocked at the middle position of the air storage cavity 71 by the filter screen 711, and because the middle space of the air storage cavity 71 is large, the blockage is not easy to occur, and the filter screen 711 can also prevent the impurities from entering the second cavity 612; in addition, when the impurities in the gas storage cavity 71 need to be discharged, when the piston 61 is pushed to move towards the second cavity 612, the gas in the second cavity 612 is pressurized and discharged into the gas storage cavity 71, and the impurities in the middle of the gas storage cavity 71 can be completely discharged under the guiding action of the tapered side wall, so that the impurities are prevented from remaining in the gas storage cavity 71.

Specifically, the driving structure includes a third motor 65, a first link 63, and a second link 64.

The third motor 65 is fixedly arranged on the upper side surface of the fixed beam 1.

A top plate 621 is fixedly arranged at one end of the piston rod 62 extending out of the piston cylinder 6, one end of the first connecting rod 63 is hinged on one side surface of the top plate 621 far away from the piston cylinder 6, the other end of the first connecting rod 63 is hinged with one end of the second connecting rod 64, and the other end of the second connecting rod 64 is hinged on an output shaft of the third motor 65.

The third motor 65 is started to drive the second connecting rod 64 to rotate, the piston rod 62 and the piston 61 are driven to move back and forth through the first connecting rod 63, the pressure in the second cavity 612 is changed, the suction and the discharge of impurities are realized, and the structure is simple.

Specifically, the device further comprises a cleaning mechanism which is arranged on the fixed beam 1 and can remove impurities adsorbed on the squeeze film 71.

Because the part blank 9 needs to be subjected to phosphating treatment before pressing, a protective film is formed on the surface of the part blank 9, the friction force of extrusion is reduced, but the film can be adhered to the pressing head 81 in the pressing process, the pressing precision of the pressing head 81 is affected, and the pressing head 81 needs to be cleaned simply after each pressing is completed.

Specifically, the cleaning mechanism includes a vertical plate 5 and a second motor 54.

The vertical plate 5 is vertically and fixedly arranged on the upper side surface of the fixed beam 1, a first rotating shaft 51 is rotatably arranged on one side of the vertical plate 5 close to the fixed nut 23, a brush wheel 52 is fixedly arranged on the first rotating shaft 51, and preferably, the brush wheel 52 is positioned right above the sliding rod 251.

The second motor 54 is fixedly arranged on one side of the vertical plate 5 far away from the fixing nut 23, and the second motor 54 is in transmission connection with the first rotating shaft 51.

When the first electromagnet 13 attracts the pressed part blank 9 to move out of the groove 821 upwards, the brush wheel 52 contacts the pressing head 81 at the moment, the second motor 54 is started to drive the brush wheel 52 to rotate, the adhered impurities on the pressing head 81 are removed, the trouble of independently cleaning the pressing head 81 is avoided, and the pressing time is shortened.

A use method of a mechanical arm-based hydraulic press feeding device comprises the following steps:

s1, adjusting the distance between the two second electromagnets 221 and the chute plate 2 through an adjusting mechanism according to the thickness of the part blank 9, so that the magnetism of the two second electromagnets 221 can overcome the elastic force of the return spring 254;

s2, moving the chute plate 2 by the moving mechanism according to the feeding position of the part blank 9, so that the two second electromagnets 221 on the mechanical arm 83 can move above the part blank 9 quickly;

s3, simultaneously starting the two second electromagnets 221 to suck the part blank 9, pushing the slide bar 251 to move upwards by the lower limiting plate 253, compressing the return spring 254, moving the part blank 9 to the position right above the groove 821 by the mechanical arm 83, closing the two second electromagnets 221, pushing the slide bar 251 and the lower limiting plate 253 to move downwards under the action of the return spring 254, and feeding the teaching blank 9 into the groove 821;

s4, pressing the part blank 9 in the groove 821 downwards by the pressing head 811 of the pressing die 81, simultaneously grabbing the next part blank 9 by the mechanical arm 83 again, after the pressing is completed, moving the first electromagnet 13 to the position above the groove 821 by the mechanical arm 83, starting the first electromagnet 821, sucking the pressed part blank 9, and hanging the part blank 9 away from the groove 821;

s5, while the pressed part blank 9 is lifted off, the next part blank 9 on the two second electromagnets 221 is placed in the groove 821 and pressed again.

The part blank 9 is sucked by the two second electromagnets 221, the part blank 9 pressed in the groove 821 is sucked by the first electromagnet 13, then the part blank is lifted away from the outer side of the female die 82, the first electromagnet 13 is closed, the pressed part blank 9 falls out of the female die 82, meanwhile, the part blanks 9 on the two second electromagnets 221 move to the position right above the groove 821, the two second electromagnets 221 are closed, a new part blank 9 is placed in the groove 821, pressing is continued, the feeding and taking time is shortened, and the pressing efficiency is improved.

In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.