CN109015082B - Swing frame and device for loading and unloading plates, machining center and loading and unloading method - Google Patents

Abstract

The invention relates to a swinging frame for feeding and discharging plates, a machining center and a feeding and discharging method, wherein the swinging frame for feeding and discharging plates is rotationally connected to a mounting seat and comprises a swinging shaft rotationally connected with the mounting seat and two swinging plates arranged at one end of the swinging shaft; at least one group of suction tools for sucking the plates is arranged outside the swing plate; the other end of the swinging shaft is in transmission connection with a swinging power source. The swing arm structure formed by the swing plates is high in strength and not easy to deform or shake. The swing plate is directly provided with the strip-shaped mounting holes for mounting the vacuum suction nozzle, so that the technical characteristics of the rotating block are saved, the cost is low, and the installation and the maintenance are easy. Four gear rack groups are adopted, and the 180-degree reciprocating swing of the swing arm is changed through the up-and-down lifting movement of the lifting sliding seat (or called lifting table) relative to the lifting fixing seat. And the purchasing cost of the servo motor is reduced. The integrated control of swing and lifting is easy to realize.

Description

Swing frame and device for loading and unloading plates, machining center and loading and unloading method

Technical Field

The present invention relates to plate processing equipment, and more specifically to a swing frame and device for loading and unloading plates, a processing center and a loading and unloading method.

Background Art

In the equipment for sheet metal processing, the sheet metal loading and unloading device is particularly critical in the entire equipment. Inaccurate and unreliable loading and unloading of sheets will affect the processing quality of the sheets and the automation of the equipment.

Chinese patent "Sheet loading and unloading device and mobile phone glass processing center" (application number CN201520396790.X, application date 2015.06.10) discloses a sheet loading and unloading device, including: a material trough for vertically arranging sheets and shared by sheets to be processed and sheets that have been processed, a rotating mechanism with a rotating rod, a first driving mechanism for carrying the rotating mechanism to move in the sheet arrangement direction and the up and down directions, and a rotating block installed on the rotating rod, a pick-up and placement portion for picking up and placing sheets is installed on both the front and rear sides of the rotating block, the rotating mechanism is installed on the first driving mechanism and the rotating block is located above the material trough, and a processing table for further processing the sheets is provided in the sheet arrangement direction.

The above patents have many defects. The strength of the rotating rod is poor, and it is easy to shake during fast movement. When the rotating block is fixed to the rotating rod by the shaft hole, there is no positioning foundation during installation. And there is no place to store the air pipe connected to the rotating block. The rotating block is a solid structure, which is not easy to install the vacuum nozzle and will increase the weight. The servo motor is used as the rotating mechanism, which has high procurement costs and high maintenance costs when a failure occurs. The nozzle does not need to rotate continuously, and a more practical and less damageable power source can be thought of.

Summary of the invention

The purpose of the present invention is to overcome the defects of the prior art and provide a swing frame and device for loading and unloading plates, a machining center and a loading and unloading method.

To achieve the above object, the present invention adopts the following technical solutions:

A swing frame for loading and unloading plates, the swing frame is rotatably connected to a mounting seat, and comprises a swing shaft rotatably connected to the mounting seat, and two swing plates arranged at one end of the swing shaft; the swing plate is provided with at least one set of suction devices for sucking plates toward the outside; the other end of the swing shaft is transmission-connected to a swing power source. Among them, the preferred scheme is: the two swing plates are symmetrically arranged, and the axis of the swing shaft is the symmetry axis of the two swing plates.

A further technical solution is as follows: the suction device is a vacuum suction nozzle for sucking a plate with a smooth surface or an electromagnetic suction cup for sucking a magnetically conductive plate.

A further technical solution is as follows: the swing plate is provided with an elongated mounting hole extending axially, and the suction device is fixed in the elongated mounting hole; a gap is provided between the swing plates for installing a vacuum suction nozzle and its conduit, or an electromagnetic suction cup and its wire.

Its further technical solution is: the swing power source is a motor, a swing cylinder or a swing oil cylinder fixedly connected to the mounting seat; the motor, the swing cylinder or the swing oil cylinder is provided with an output shaft transmission-connected to the swing shaft.

The present invention discloses a swing type plate loading and unloading device, comprising a material trough for arranging plates vertically and sharing the plates to be processed with the processed plates, a horizontal slide seat arranged at one side of the material trough, a horizontal slide table slidably connected to the horizontal slide seat, and a horizontal power mechanism for driving the horizontal slide table to move along the feeding direction; the horizontal slide table is provided with a lifting slide rail, a mounting seat slidably connected to the lifting slide rail, and a lifting power mechanism for driving the mounting seat to move up and down;

The mounting seat is provided with the above-mentioned swing frame;

Alternatively, the mounting seat is provided with a rotating rod and a rotating block mounted on the rotating rod, and the front and rear sides of the rotating block are both equipped with a picking and placing portion for picking up and placing the plate (such as the rotating rod and rotating block structure in patent document CN201520396790.X).

Its further technical solution is: an extension portion is provided at one end of the swing shaft farther from the swing plate; the extension portion is provided with four one-way gears of a one-way gear rack set; a mounting frame is provided on the side of the horizontal slide farther from the swing plate, and the mounting frame is provided with a rack of the one-way gear rack set; the up and down movement of the mounting seat relative to the horizontal slide constitutes a relative movement of the one-way gear and the rack, and the swing plate is driven to flip back and forth through the extension portion to realize the loading and unloading of the plate.

Its further technical solution is: one end of the material trough close to the processing position is the material level to be processed, and the other end far from the processing position is the processed material level; the one-way gear rack group includes a first one-way gear, a second one-way gear, a third one-way gear and a fourth one-way gear respectively arranged at intervals in the extension part, and a first rack, a second rack, a third rack and a fourth rack which are matched with the first one-way gear, the second one-way gear, the third one-way gear and the fourth one-way gear in sequence; the second rack and the fourth rack are arranged on one side of the extension part close to the processing position, and the first rack and the third rack are arranged on the other side of the extension part away from the processing position.

Its further technical solution is: the material trough is lower than the processing position; the first rack and the fourth rack are in the same lower mounting position, and the second rack and the fourth rack are in the same upper mounting position; the upper mounting position is higher than the lower mounting position to provide the space required for turning the plate;

During the rising process of the swing frame after sucking the plate to be processed, the first one-way gear is meshed with the first rack and the first one-way gear is transmitted to the extension part in one direction, driving the swing frame to rotate approximately 90 degrees in the forward direction, and the fourth one-way gear is meshed with the fourth rack and the fourth one-way gear is idling in one direction without transmitting to the extension part;

After the swing frame moves to the processing position to absorb the processed plate and then rises to a set height, when the swing frame continues to rise, the second one-way gear is meshed with the second rack and the second one-way gear is unidirectionally transmitted to the extension part, driving the swing frame to rotate approximately 90 degrees in the opposite direction, and the third one-way gear is meshed with the third rack and the third one-way gear is unidirectionally idle, and no transmission is made to the extension part;

When the swing frame reaches the highest position and then descends, the third one-way gear meshes with the third rack and the third one-way gear transmits one-way transmission to the extension part, and continues to drive the swing frame to rotate in the opposite direction by approximately 90 degrees, the second one-way gear meshes with the second rack and the second one-way gear rotates idly in one direction without transmitting to the extension part;

After the swing frame descends to a set height, the plate to be processed is placed at the processing position, and then moved to the loading and unloading position close to the material trough. During the descending process, the fourth one-way gear is engaged with the fourth rack and the fourth one-way gear is transmitted to the extension part in one direction, driving the swing frame to rotate approximately 90 degrees in the forward direction, and the first one-way gear is engaged with the first rack and the first one-way gear is idling in one direction, and no transmission is made to the extension part.

Its further technical solution is: the swing frame also includes a braking mechanism; the braking mechanism includes a clamp arranged on the outer periphery of the swing shaft and used to brake the swing shaft, and an electromagnetic mechanism for driving the clamp.

The present invention provides a machining center, comprising a machine base, a machining table arranged on the machine base, and a machining power head located above the machining table and driven by a three-axis power mechanism. The center is characterized in that it also comprises the above-mentioned plate loading and unloading device; the material trough is located on one side of the machining table; there are multiple machining power heads and there are also multiple groups of grippers.

The plate loading and unloading method of the present invention adopts the aforementioned plate loading and unloading device, and the plate to be processed and the processed plate are arranged in the same material trough and placed nearly vertically; when the suction device of the swing frame sucks the plate to be processed, it rises to a set height, and then moves to the processing position, and at the same time, the swing frame rotates forward by about 90 degrees, the plate is nearly horizontal and the plate to be processed is located above the swing frame; after sucking the processed plate, the swing frame rises and rotates in the opposite direction by about 180 degrees and then descends to the processing position, and the plate to be processed is released at the processing position; the swing frame then moves horizontally to the processed plate material area of the material trough, and the swing frame synchronously rotates forward by about 90 degrees to release the processed plate into the material trough.

Compared with the prior art, the present invention has the following beneficial effects: the swing arm structure formed by the swing plate adopted in the present invention has high strength and is not easy to deform or shake. A long strip-shaped mounting hole is directly provided on the swing plate for mounting the vacuum nozzle, which saves the technical feature of the rotating block, is not only low in cost, but also easy to install and maintain. Four gear rack sets are adopted, and the up and down lifting movement of the lifting slide (or lifting platform) relative to the lifting fixed seat is changed into a 180-degree reciprocating swing of the swing arm. The procurement cost of the servo motor is reduced. It is easy to realize the integrated control of swinging and lifting.

The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a top view of a swing frame for loading and unloading plates according to the present invention;

FIG2 is a front view of a swing frame for loading and unloading plates according to the present invention;

FIG3 is a top view of a swing frame with a swing power source for loading and unloading plates according to the present invention;

FIG4 is a front view of a swing type plate loading and unloading device with a swing power source according to the present invention;

FIG5 is a front view of a swing type plate loading and unloading device with a one-way gear rack assembly according to the present invention;

FIG6 is a schematic structural view of a one-way gear rack assembly of a swing type plate loading and unloading device of the present invention;

FIG7 is a simplified structural view of a one-way gear rack assembly from another perspective of a swing type plate loading and unloading device of the present invention;

FIG8 is a schematic diagram of a brake mechanism of a swing type plate loading and unloading device according to the present invention;

FIG9 is a front view of a machining center according to the present invention;

FIG10 is a side view of a machining center of the present invention;

11 to 22 are schematic diagrams of a moving process of a swing frame of a loading and unloading device of a machining center for grabbing a plate and a working state of a rack and pinion assembly according to the present invention.

DETAILED DESCRIPTION

In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below, but is not limited thereto.

FIG. 1 to FIG. 22 are drawings of embodiments of the present invention.

A swing frame 10 for loading and unloading plates, as shown in FIGS. 1 to 3, is rotatably connected to a mounting seat 11, and includes a swing shaft 12 rotatably connected to the mounting seat 11, and two swing plates 13 arranged at one end of the swing shaft 12. The swing plate 13 is provided with at least one set of suction devices 14 for sucking plates toward the outside. The other end of the swing shaft 12 is transmission-connected to a swing power source 15. Among them, the preferred scheme is: the two swing plates are symmetrically arranged, and the axis of the swing shaft is the symmetry axis of the two swing plates.

The suction device 14 is a vacuum suction nozzle for sucking a plate with a smooth surface or an electromagnetic suction cup for sucking a magnetically conductive plate.

The swing plate 13 is provided with an elongated mounting hole 131 extending in the axial direction, and the suction fixture 14 is fixed in the elongated mounting hole 131. A gap is provided between the swing plates 13 for installing a vacuum suction nozzle and its conduit, or an electromagnetic suction cup and its wire.

The swing power source 15 is a motor, a swing cylinder or a swing oil cylinder fixedly connected to the mounting seat 11. The motor, the swing cylinder or the swing oil cylinder is provided with an output shaft drivingly connected to the swing shaft 12.

A swing type plate loading and unloading device 20, as shown in Figures 4 to 8, is used to arrange plates vertically and a material trough 21 is shared by the plates to be processed and the processed plates, and a horizontal slide 23 is arranged on one side of the material trough 21, a horizontal slide 22 slidably connected to the horizontal slide 23, and a horizontal power mechanism 24 for driving the horizontal slide 22 to move along the feeding direction. The horizontal slide 22 is provided with a lifting rail 25, a mounting seat 11 slidably connected to the lifting rail 25, and a lifting power mechanism 26 for driving the mounting seat 11 to move up and down. The mounting seat 11 is provided with the above-mentioned swing frame 10.

An extension part 121 is provided at one end of the swing shaft 12 which is farther from the swing plate 13. The extension part 121 is provided with four one-way gears of the one-way gear rack set 16. A mounting frame 27 is provided at one side of the horizontal slide 22 which is farther from the swing plate 13. The mounting frame 27 is provided with a rack of the one-way gear rack set 16. The up and down movement of the mounting seat 11 relative to the horizontal slide 22 constitutes the relative movement of the one-way gear and the rack, and the swing plate 13 is driven to flip back and forth through the extension part 121 to realize the loading and unloading of the plate.

One end of the material trough 21 close to the processing position is a material position to be processed, for placing the plate to be processed; the other end far from the processing position is a processed material position, for placing the processed plate. The material trough 21 is lower than the processing position.

The one-way gear rack assembly 16 includes a first one-way gear 161, a second one-way gear 162, a third one-way gear 163 and a fourth one-way gear 164 which are respectively arranged at intervals on the extension portion 121, and a first rack 165, a second rack 166, a third rack 167 and a fourth rack 168 which are matched with the first one-way gear 161, the second one-way gear 162, the third one-way gear 163 and the fourth one-way gear 164 in sequence. The second rack 166 and the fourth rack 168 are arranged on one side of the extension portion 121 close to the processing position, and the first rack 165 and the third rack 167 are arranged on the other side of the extension portion 121 away from the processing position.

The first rack 165 and the fourth rack 168 are in the same lower mounting position, and the second rack 166 and the fourth rack 168 are in the same upper mounting position. The upper mounting position is higher than the lower mounting position to provide the space required for the plate to be turned over.

During the rising process of the swing frame 10 after sucking the plate to be processed, the first one-way gear 161 is engaged with the first rack 165 and the first one-way gear 161 transmits one-way transmission to the extension part 121, driving the swing frame 10 to rotate approximately 90 degrees in the forward direction, and the fourth one-way gear 164 is engaged with the fourth rack 168 and the fourth one-way gear 164 is unidirectionally idle without transmitting to the extension part 121.

After the swing frame 10 moves to the processing position to absorb the processed plate and then rises to a set height, when the swing frame 10 continues to rise, the second one-way gear 162 is engaged with the second rack 166 and the second one-way gear 162 is transmitted to the extension portion 121 in one direction, driving the swing frame 10 to rotate in the opposite direction by approximately 90 degrees, and the third one-way gear 163 is engaged with the third rack 167 and the third one-way gear 163 is unidirectionally idle and does not transmit to the extension portion 121.

When the swing frame 10 reaches the highest position and then descends, the third one-way gear 163 engages with the third rack 167 and the third one-way gear 163 transmits one-way transmission to the extension portion 121, driving the swing frame 10 to rotate in the opposite direction by approximately 90 degrees, and the second one-way gear 162 engages with the second rack 166 and the second one-way gear 162 idles one-way without transmitting to the extension portion 121.

After the swing frame 10 descends to a set height, the plate to be processed is placed at the processing position, and then moved to the loading and unloading position close to the material trough 21, the fourth one-way gear 164 is engaged with the fourth rack 168 and the fourth one-way gear 164 is transmitted unidirectionally to the extension portion 121, driving the swing frame 10 to rotate approximately 90 degrees in the forward direction, and the first one-way gear 161 is engaged with the first rack 165 and the first one-way gear 161 is unidirectionally idle and does not transmit to the extension portion 121.

The swing frame 10 further includes a single-side brake mechanism 28, a friction wheel 281 disposed on the outer periphery of the swing shaft 12, and a brake block 282 (driven by other power mechanisms) acting on the outer side of the friction wheel 281. The brake mechanism may also adopt a brake structure: that is, it includes a clamp disposed on the outer periphery of the swing shaft and used to brake the swing shaft, and an electromagnetic mechanism for driving the clamp.

A machining center, as shown in FIGS. 9 and 10 , includes a machine base 30, a machining table 40 disposed on the machine base 30, and a machining power head 50 located above the machining table 40 and driven by a three-axis power mechanism, and also includes the above-mentioned plate loading and unloading device 20. The material trough 21 is located on one side of the machining table 40. There are multiple machining power heads 50, and the above-mentioned grippers 14 are also multiple groups.

Figures 11 to 22 are schematic diagrams of the process of the swing frame of the loading and unloading device of the machining center grabbing the plate. The plates represented by the dotted lines in the figures are the plates to be processed, and the plates represented by the solid lines are the processed plates.

When the extension 121 moves between the first rack 165 and the fourth rack 168, one of the first one-way gear 161 and the fourth one-way gear 164 is idle, and the other is engaged with the rack to flip the swing frame 10. Specifically, when the lifting power mechanism 26 drives the swing frame 10 to move upward, the first one-way gear 161 is engaged with the first rack 165 to flip the swing frame 10 clockwise by about 90°, and at this time, the fourth one-way gear 164 is idle on the fourth rack 168. When the lifting power mechanism 26 drives the swing frame 10 to move downward, the fourth one-way gear 164 is engaged with the fourth rack 168 to transmit power, and the first one-way gear 161 is idle on the first rack 165, and at this time, the swing frame 10 is flipped clockwise by about 90°.

When the lifting power mechanism 26 drives the swing frame 10 to move to the gap between the first rack 165 and the third rack 167, and the second rack 166 and the fourth rack 168, the swing frame 10 does not rotate. At this time, the braking mechanism 28 fixes the extension shaft 121, and the horizontal power mechanism 24 drives the swing frame 10 to move horizontally to above the processing table 40.

When the extension 121 moves between the third rack 167 and the second rack 166, one of the third one-way gear 163 and the second one-way gear 162 is idle, and the other is meshed with the rack, so that the swing frame 10 is turned over. Specifically, when the lifting power mechanism 26 drives the swing frame 10 to move upward, the second one-way gear 162 meshes with the second rack 166 to transmit power, so that the swing frame 10 is turned counterclockwise by about 90 degrees. At this time, the third one-way gear 163 is idle on the third rack 167. When the lifting power mechanism 26 drives the swing frame 10 to move downward, the third one-way gear 163 meshes with the third rack 167 to transmit power, and the second one-way gear 162 is idle on the second rack 166. At this time, the swing frame 10 is turned counterclockwise by about 90 degrees.

The present invention also discloses a method for loading and unloading plates, which uses the aforementioned plate loading and unloading device to place the plate to be processed and the processed plate in the same material trough and place them nearly vertically; when the suction device of the swing frame sucks the plate to be processed, it rises to a set height, and then moves to the processing position, and at the same time the swing frame rotates forward by about 90 degrees, the plate is nearly horizontal and the plate to be processed is located above the swing frame; after sucking the processed plate, the swing frame rises and rotates in the opposite direction by about 180 degrees and then descends to the processing position, and the plate to be processed is released at the processing position; the swing frame then moves horizontally to the processed plate material area of the material trough, and the swing frame synchronously rotates forward by about 90 degrees to release the processed plate into the material trough. The specific description is as follows:

As shown in FIGS. 11 to 12 , after the swing frame 10 absorbs the plate in the trough 21, the lifting power mechanism 26 drives the swing frame 10 to rise to a predetermined position above the trough 21. At this time, the first one-way gear 161 is meshed with the first rack 165 to rotate the swing frame 10 clockwise through a certain angle (75 to 85 degrees with the vertical plane), so that the plate is tilted 75 to 85 degrees. At this time, the height position of the plate is slightly higher than the processing table 40. The horizontal power mechanism 24 drives the horizontal slide 22 to move toward the processing table 40.

As shown in Figs. 13-15, after the swing frame 10 drives the plate to move above the processing table 40, the plate is in a horizontal state. At this time, the extension shaft 121 is lowered a short distance between the first rack 165 and the fourth rack 168 under the action of the lifting power mechanism 26, and the fourth rack 168 is meshed with the fourth one-way gear 164. The swing frame 10 rotates a short distance clockwise to make the plate rotate 5 to 15° close to the horizontal state, and the first one-way gear 161 and the first rack 165 are idling at this time. Then the lifting power mechanism 26 drives the swing frame 10 to continue to descend a short distance, and the suction nozzle on the other side of the swing frame 10 that does not absorb the plate absorbs the processed plate on the processing table 40 and rises to a certain height (the plate is in an approximately horizontal state). At this time, the extension shaft 121 does not move in the gap between the two racks. The horizontal power mechanism 24 drives the horizontal slide 22 to move away from the processing table 40, so that the swing frame 10 will not touch the processing table 40 when flipping.

As shown in Figs. 16-19, the swing frame 10 continues to rise to a certain height under the action of the lifting power mechanism 26, so that the extension shaft is between the third rack 167 and the second rack 166, and the second one-way gear 162 is meshed with the second rack 166 to transmit power, so that the swing frame 10 is turned counterclockwise by about 90° (the plate is in a vertical state), and at this time, the third one-way gear 163 is idling on the third rack 167. After the extension shaft 121 rises to the highest point, it then descends under the action of the lifting power mechanism 26, and the third one-way gear 163 is meshed with the third rack 167 to transmit power, and the second one-way gear 162 is idling on the second rack 166, and the swing frame 10 continues to turn counterclockwise by about 90°, and the swing frame 10 is in a horizontal state, and at this time, the extension shaft 121 is in the gap between the racks.

As shown in FIGS. 20-22, the horizontal power mechanism 24 drives the horizontal slide 22 to move toward the processing table 40, and the lifting power mechanism 26 drives the swing frame 10 to descend. When the plate to be processed is close to the processing table 40, the suction nozzle disconnects the vacuum and allows the plate to fall on the processing table 40. After the plate is placed on the processing table 40, the swing frame 10 rises slightly for a distance, and then the horizontal power mechanism 24 drives the horizontal slide 22 to move away from the processing table 40. When the swing frame 10 is above the material trough 21, the lifting power mechanism 26 drives the swing frame 10 to descend, and the extension shaft 121 moves between the first rack 165 and the fourth rack 168. The fourth one-way gear 164 meshes with the fourth rack 168 to transmit power, and the first one-way gear 161 idles on the first rack 165. At this time, the swing frame 10 turns clockwise by about 90 degrees, and the processed plate is in a vertical state. Then the swing frame 10 continues to descend, the suction nozzle disconnects the vacuum, and the plate is placed at one end of the material trough, completing the loading and unloading of a plate.

In other embodiments of the swing-type plate loading and unloading device and machining center of the present invention, the above-mentioned swing frame structure may not be used, but a rotating rod and a rotating block installed on the rotating rod are provided on the mounting seat, and a pick-up and placement portion for picking up and placing plates is installed on both the front and rear sides of the rotating block (such as the rotating rod and rotating block structure of patent document CN201520396790.X). That is, on the basis of patent document CN201520396790.X, the rotating mechanism (i.e., the motor) therein is abandoned, and the four one-way transmission gear rack groups of the present invention are used instead, so as to utilize the rise and fall of the mounting seat to drive the rotating rod to perform reciprocating flipping. The specific contents are:

A swing-type plate loading and unloading device comprises a material trough for arranging plates vertically and sharing the plates to be processed with the plates that have been processed, a horizontal slide seat arranged on one side of the material trough, a horizontal slide table slidably connected to the horizontal slide seat, and a horizontal power mechanism for driving the horizontal slide table to move along the feeding direction; the horizontal slide table is provided with a lifting slide rail, a mounting seat slidably connected to the lifting slide rail, and a lifting power mechanism for driving the mounting seat to move up and down; the mounting seat is provided with a rotating rod and a rotating block mounted on the rotating rod, and the front and rear sides of the rotating block are both provided with a picking and placing portion for picking up and placing the plates.

Furthermore, an extension portion is provided at one end of the swing shaft farther from the swing plate; the extension portion is provided with four one-way gears of a one-way gear rack set; a mounting frame is provided on a side of the horizontal slide farther from the swing plate, and the mounting frame is provided with a rack of the one-way gear rack set; the up and down movement of the mounting seat relative to the horizontal slide constitutes a relative movement of the one-way gear and the rack, and the swing plate is driven to flip back and forth through the extension portion to realize the loading and unloading of the plate.

Furthermore, one end of the material trough close to the processing position is the material level to be processed, and the other end far from the processing position is the processed material level; the one-way gear rack group includes a first one-way gear, a second one-way gear, a third one-way gear and a fourth one-way gear, which are respectively arranged at intervals in the extension part, and a first rack, a second rack, a third rack and a fourth rack which are matched with the first one-way gear, the second one-way gear, the third one-way gear and the fourth one-way gear in sequence; the second rack and the fourth rack are arranged on one side of the extension part close to the processing position, and the first rack and the third rack are arranged on the other side of the extension part away from the processing position.

Furthermore, the material trough is lower than the processing position; the first rack and the fourth rack are in the same lower mounting position, and the second rack and the fourth rack are in the same upper mounting position; the upper mounting position is higher than the lower mounting position to provide the space required for turning the plate;

During the rising process of the swing frame after sucking the plate to be processed, the first one-way gear is meshed with the first rack and the first one-way gear is transmitted to the extension part in one direction, driving the swing frame to rotate approximately 90 degrees in the forward direction, and the fourth one-way gear is meshed with the fourth rack and the fourth one-way gear is idling in one direction without transmitting to the extension part;

After the swing frame moves to the processing position to absorb the processed plate and then rises to a set height, when the swing frame continues to rise, the second one-way gear is meshed with the second rack and the second one-way gear is unidirectionally transmitted to the extension part, driving the swing frame to rotate approximately 90 degrees in the opposite direction, and the third one-way gear is meshed with the third rack and the third one-way gear is unidirectionally idle, and no transmission is made to the extension part;

When the swing frame reaches the highest position and then descends, the third one-way gear meshes with the third rack and the third one-way gear transmits one-way transmission to the extension part, and continues to drive the swing frame to rotate in the opposite direction by approximately 90 degrees, the second one-way gear meshes with the second rack and the second one-way gear rotates idly in one direction without transmitting to the extension part;

After the swing frame descends to a set height, the plate to be processed is placed at the processing position, and then moved to the loading and unloading position close to the material trough. During the descending process, the fourth one-way gear is engaged with the fourth rack and the fourth one-way gear is transmitted to the extension part in one direction, driving the swing frame to rotate approximately 90 degrees in the forward direction, and the first one-way gear is engaged with the first rack and the first one-way gear is idling in one direction, and no transmission is made to the extension part.

Furthermore, the swing frame also includes a braking mechanism; the braking mechanism includes a clamp provided on the outer periphery of the swing shaft and used for braking the swing shaft, and an electromagnetic mechanism for driving the clamp.

A machining center includes a machine base, a machining table arranged on the machine base, and a machining power head located above the machining table and driven by a three-axis power mechanism, and also includes the above-mentioned plate loading and unloading device; the material trough is located on one side of the machining table; the machining power heads are multiple and the grippers are also multiple groups.

For the structure of the specific embodiment, please refer to the parts corresponding to the loading and unloading device and the machining center in the above-mentioned Figures 4-22.

In summary, the swing arm structure formed by the swing plate used in the present invention has high strength and is not easy to deform or shake. A long strip-shaped mounting hole is directly provided on the swing plate for installing the vacuum nozzle, which saves the technical feature of the rotating block, is not only low-cost, but also easy to install and maintain. Four gear rack sets are used, and the up and down lifting movement of the lifting slide (or lifting platform) relative to the lifting fixed seat is changed into a 180-degree reciprocating swing of the swing arm. The procurement cost of the servo motor is reduced. It is easy to realize the integrated control of swinging and lifting.

The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but it does not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims (6)

1. The swing type plate loading and unloading device comprises a trough, a horizontal sliding seat, a horizontal sliding table and a horizontal power mechanism, wherein the trough is used for vertically arranging plates, the plates to be processed and the plates to be processed share the trough, the horizontal sliding seat is arranged on one side of the trough, the horizontal sliding table is in sliding connection with the horizontal sliding seat, and the horizontal power mechanism is used for driving the horizontal sliding table to move along the feeding direction; the horizontal sliding table is provided with a lifting sliding rail, an installation seat in sliding connection with the lifting sliding rail, and a lifting power mechanism for driving the installation seat to move up and down; it is characterized in that the method comprises the steps of,

The mounting seat is provided with a swinging frame; the swinging frame is rotationally connected with the mounting seat and comprises a swinging shaft rotationally connected with the mounting seat and two swinging plates arranged at one end of the swinging shaft; at least one group of suction tools for sucking the plates is arranged outside the swing plate; the other end of the swing shaft is in transmission connection with a swing power source;

An extension part is arranged at one end of the swing shaft, which is far away from the swing plate; the extension part is provided with one-way gears of four one-way gear rack groups; the horizontal sliding table is provided with a mounting frame at one side far away from the swinging plate, and the mounting frame is provided with racks of a unidirectional gear rack group; the mounting seat moves up and down relative to the horizontal sliding table to form relative movement of the unidirectional gear and the rack, and the swinging plate is driven to reciprocate through the extension part so as to realize feeding and discharging of the plate;

One end of the trough, which is close to the processing position, is a material level to be processed, and the other end of the trough, which is far away from the processing position, is a processed material level; the unidirectional gear rack group comprises a first unidirectional gear, a second unidirectional gear, a third unidirectional gear and a fourth unidirectional gear which are respectively arranged at intervals on the extension part, and a first rack, a second rack, a third rack and a fourth rack which are matched with the first unidirectional gear, the second unidirectional gear, the third unidirectional gear and the fourth unidirectional gear in sequence; the second rack and the fourth rack are arranged on one side of the extension part, which is close to the machining position, and the first rack and the third rack are arranged on the other side of the extension part, which is far away from the machining position;

The trough is lower than the processing position; the first rack and the fourth rack are positioned at the same lower mounting position, and the second rack and the fourth rack are positioned at the same upper mounting position; the upper mounting position is higher than the lower mounting position so as to provide a space required by the overturning of the plate;

The swing frame is driven to rotate forward by approximately 90 degrees in the ascending process after the plate to be processed is sucked, the first unidirectional gear is meshed with the first rack, the first unidirectional gear is unidirectionally driven to the extension part, the fourth unidirectional gear is meshed with the fourth rack, the fourth unidirectional gear is unidirectionally idle, and the first unidirectional gear is not driven to the extension part; after the swing frame moves to the processing position to absorb the processed plate and rises again to a set height, when the swing frame continues to rise, the second unidirectional gear is meshed with the second rack and is unidirectionally transmitted to the extension part, the swing frame is driven to reversely rotate for approximately 90 degrees, and the third unidirectional gear is meshed with the third rack and is unidirectionally idle and not transmitted to the extension part;

When the swing frame descends after reaching the highest position, the third unidirectional gear is meshed with the third rack and is unidirectionally transmitted to the extension part, the swing frame is continuously driven to reversely rotate for approximately 90 degrees, and the second unidirectional gear is meshed with the second rack and is unidirectionally idle and not transmitted to the extension part;

After the swing frame descends to a set height, the plate to be processed is placed at a processing position, and then moves to a feeding and discharging position close to the trough, in the descending process, the fourth one-way gear is meshed with the fourth rack and is unidirectionally transmitted to the extension part, the swing frame is driven to rotate for approximately 90 degrees in the forward direction, the first one-way gear is meshed with the first rack and is unidirectionally idle, and the plate is not transmitted to the extension part;

The swing frame also comprises a single-side braking mechanism or a braking structure, wherein the single-side braking mechanism comprises a friction wheel arranged on the periphery of the swing shaft and a braking block acting on the outer side of the friction wheel; the brake structure comprises a hoop arranged on the periphery of the swinging shaft and used for braking the swinging shaft, and an electromagnetic mechanism used for driving the hoop.

2. The swing type plate loading and unloading device according to claim 1, wherein the suction tool is a vacuum suction nozzle for sucking a clean surface plate or an electromagnetic suction disc for sucking a magnetic conductive plate.

3. The swing type plate loading and unloading device according to claim 2, wherein the swing plate is provided with an elongated mounting hole extending along the axial direction, and the suction tool is fixed in the elongated mounting hole; and a gap is arranged between the swinging plates and is used for installing a vacuum suction nozzle and a guide pipe thereof or an electromagnetic chuck and a guide wire thereof.

4. The swing type plate loading and unloading device according to claim 1, wherein the swing power source is a motor, a swing cylinder or a swing oil cylinder fixedly connected with the mounting seat; the motor, the swing cylinder or the swing cylinder is provided with an output shaft which is in transmission connection with the swing shaft.

5. The machining center comprises a machine base, a machining table arranged on the machine base, and a machining power head which is arranged above the machining table and driven by a triaxial power mechanism, and is characterized in that,

Further comprising the plate loading and unloading device of any one of claims 1 to 4; the trough is positioned at one side of the processing table; the number of the processing power heads is multiple, and the number of the suction tools is also multiple.

6. The feeding and discharging method of the plates adopts the plate feeding and discharging device of any one of claims 1 to 4, and the plates to be processed and the processed plates are arranged in the same trough and are arranged in a nearly vertical way; when the suction tool of the swing frame sucks the plate to be processed, the plate rises to a set height, and when the processing position is moved, the swing frame rotates forward by about 90 degrees, the plate is in a horizontal direction, and the plate to be processed is positioned above the swing frame; after the processed plate is sucked, the swing frame is lifted and reversely rotated for about 180 degrees and then is lowered to a processing position, and the plate to be processed is released to the processing position; the swinging frame horizontally moves to the processed plate material area of the trough, and synchronously rotates forward for about 90 degrees to release the processed plate into the trough.