High-speed feeding device for large press line

Abstract

The invention discloses a high-speed feeding device for a large press line, and belongs to the technical field of press machines. Comprising two oppositely-arranged mounting supports, an upper-order station and a lower-order station, the two lifting devices are oppositely arranged on the inner side of the mounting bracket; the lifting device does lifting movement in the vertical direction along the mounting bracket; the feeding device is mounted on the lifting device and can be driven by the lifting device; the feeding device is a parallelogram mechanism and can swing in a vertical plane; the two ends of the transverse rod are rotationally connected with the feeding rods correspondingly. And an adsorption device is arranged on the cross rod. The double-arm feeding structure is simplified; the whole structure is simple and compact; maintenance is easy, and the occupied space of the carrying device in a die area of the press machine is compressed; and the carrying speed and efficiency of the plate-shaped workpieces are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of presses; specifically, it is a high-speed feeding device for a large-scale punching line. Background Art

[0002] A press, also known as a press machine, is a machine that compresses gas or liquid into high pressure using the principles of compression and force. It is widely used in industrial production. A press is a versatile press with a sophisticated structure. It is mainly used for processing, forming, and compressing materials. According to its working principle and structural characteristics, presses can be divided into many types, mainly including hydraulic presses, mechanical presses, and pneumatic presses. Among them, hydraulic presses are powered by a hydraulic system and use liquid as a medium to generate and control pressure; mechanical presses are powered by traditional mechanical structures and transmit motion through connecting rods; and pneumatic presses use compressed air as a power source.

[0003] The working principle of the press varies depending on the type. Take the hydraulic press as an example; its basic principle is that the oil pump delivers the hydraulic oil to the integrated cartridge valve block; through each one-way valve and overflow valve, the hydraulic oil is distributed to the upper or lower chamber of the oil cylinder; under the action of high-pressure oil, the oil cylinder moves, thereby realizing the processing of the workpiece. The mechanical press drives the flywheel through the output of the main motor; the clutch driving gear, crankshaft (or eccentric gear), connecting rod, etc. realize the linear movement of the slider, and exerts pressure on the workpiece.

[0004] There will be multiple presses on the stamping line. In order to improve the working efficiency, a feeding device will be installed between adjacent presses. The feeding device usually adopts a robotic arm. However, the robotic arm has the problems of high cost and large space occupation. Summary of the invention

[0005] In order to solve the problem that the feeding mechanical arm has high cost and occupies a large space; the present invention provides a high-speed feeding device for a large-scale stamping line.

[0006] The present invention is achieved through the following technical solutions: A high-speed feeding device for a large-scale stamping line, comprising two mounting brackets arranged opposite to each other and an upper-sequence workstation and a lower-sequence workstation symmetrically arranged on both sides of the two mounting brackets; a lifting device; two lifting devices are provided; the two lifting devices are arranged opposite to each other on the inner side of the mounting brackets; and the lifting devices are moved up and down in the vertical direction along the mounting brackets; Feeding device; the feeding device is mounted on the lifting device and can be driven by the lifting device; feeding device; the feeding device is mounted on the lifting device and can be driven by the lifting device; the feeding device is a parallelogram mechanism and can swing in a vertical plane; The cross bar has two ends which are rotatably connected to the working ends of the feeding device respectively; and an adsorption device capable of grabbing materials is provided on the cross bar.

[0007] A further improvement of the present invention is that the above-mentioned feeding device includes a lifting rod, an active rod, a rocker arm, an upper connecting rod, a lower connecting rod and a feeding rod, the lifting rod is installed on the lifting device, the rocker arm is arranged in parallel with the feeding rod, and the adjacent ends of the rocker arm and the feeding rod are hingedly connected by an upper connecting rod and a lower connecting rod arranged in parallel with each other, the upper end of the rocker arm is hinged on the lifting rod, one end of the feeding rod is hinged on the lower end of the lifting rod, and the other end is coaxially hinged with the upper connecting rod and the feeding rod; the lifting rod is provided with a connecting rod driving motor, and the connecting rod driving motor drives the active rod to rotate around its hinge point with the lifting rod.

[0008] A further improvement of the present invention is that the cross bar is horizontally connected to the end of the feed rod away from the rotating guide block.

[0009] A further improvement of the present invention is that one end of the cross bar is rotationally connected to the feed rod via a cross bar rotating motor.

[0010] A further improvement of the present invention is that the above-mentioned adsorption device includes adsorption device brackets evenly distributed along the length direction of the cross bar; and a vacuum suction cup is provided at the end of the adsorption device bracket.

[0011] A further improvement of the present invention is that the opening of the adsorption device bracket faces downward; and the middle part of the adsorption device bracket is connected to the cross bar; and the vacuum suction cups are respectively arranged at both ends of the adsorption device bracket.

[0012] A further improvement of the present invention is that the above-mentioned mounting bracket is a U-shaped structure with the opening facing downward; the lifting device is slidably arranged in the opening of the mounting bracket; the lifting device includes two racks arranged opposite to each other; a driving gear and a driven gear are arranged on the inner sides of the two racks; the driving gear and the driven gear are meshed with each other; and are respectively meshed with the racks; the rotating shaft of the driving gear and the rotating shaft of the driven gear are commonly connected to a lifting beam that carries the lifting rod.

[0013] A further improvement of the present invention is that a guide rail is provided on the inner side of the above-mentioned mounting bracket; the guide rail cooperates with the lifting beam to provide guidance.

[0014] A further improvement of the present invention is that the upper station includes an upper station press and an upper station lower mold; and the bottom of the upper station press is provided with an upper station upper mold.

[0015] A further improvement of the present invention is that the above-mentioned downstream station includes a downstream station press and a downstream station lower mold; and the bottom of the downstream station press is provided with a downstream station upper mold.

[0016] It can be seen from the above technical solutions that the beneficial effects of the present invention are as follows: the present invention is used for the handling of workpieces between presses in a high-speed automated stamping production line, and can more quickly carry the workpiece from the upper station to the lower station, and this process is not subject to the shape, material, and double-mold spacing requirements of the molded parts and the corresponding mold opening angle requirements. Compared with the existing technology, the present invention simplifies the structure of the feeding mechanism, and the overall structure is simple, compact, and easy to maintain. It reduces the space occupied by the feeding mechanism in the press mold area, improves the handling speed and efficiency of the workpiece, and improves the performance utilization efficiency of the press. The present invention can more effectively match the new servo press production line, increase the popularity of high-speed automated stamping production lines, reduce production costs for automobile manufacturers, improve production efficiency and quality, and generate better economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a specific implementation mode of the present invention.

[0019] Figure 2 It is a schematic diagram of the combination of the mounting bracket, the lifting device and the feeding device according to a specific embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the combination of the cross bar and the adsorption device according to a specific embodiment of the present invention.

[0021] Figure 4 It is a schematic structural diagram of a lifting device according to a specific embodiment of the present invention.

[0022] Figure 5 It is a first structural schematic diagram of a feeding device according to a specific embodiment of the present invention.

[0023] In the attached drawings: 100, mounting bracket; 101, balancing cylinder; 102, guide rail; 200, lifting device; 201, rack; 202, driving gear; 203, driven gear; 204, lifting beam; 300, feeding device; 301, driving rod; 302, lifting rod; 303, rocker; 304, upper connecting rod; 305, lower connecting rod; 306, middle connecting rod; 307, feeding rod; 400, cross bar; 401, cross bar rotating motor; 500, adsorption device; 501, adsorption device bracket; 502, vacuum suction cup; 700, upper station; 701, press at upper station; 702, upper mould at upper station; 703, lower mould at upper station; 800, lower station; 801, press at lower station; 802, upper mould at lower station; 803, lower mould at lower station; 900, column. DETAILED DESCRIPTION

[0024] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0025] As attached Figure 1-5 As shown: the present invention includes a mounting bracket 100, a lifting device 200, a feeding device 300, a cross bar 400, and an adsorption device 500.

[0026] The present invention is an extremely important part of an automated stamping line and is located before or after a metal forming press. The workpiece to be formed is disassembled by a destacking device and passes through a cleaning machine or an oiling machine. The centering device completes the posture adjustment of the workpiece. The present invention is used to transport the aligned workpiece from the centering platform to the die area of ​​the forming press. The forming press completes the stamping process. The subsequent workpiece feeding mechanism transports the formed plate-shaped parts from the die area 700 of the upper-sequence press to the die area 800 of the lower-sequence press to complete the entire stamping process. The last-sequence feeding mechanism transports the workpiece from the die area of ​​the last-sequence press to a belt conveyor or other device to complete the workpiece transportation work of the entire automated stamping line.

[0027] The mounting bracket 100 is used to control the vertical up and down movement and guidance of the lifting device 200, and is installed on the ground between the press columns or on the press columns, and is arranged on both sides of the production line; the lifting device 200 is installed on the mounting bracket 100 to realize the up and down movement of the entire feeding mechanism; the feeding mechanism 300 is fixedly connected to the lifting device 200 to complete the handling of the workpiece; an adsorption device 500 is installed on the cross bar 400 to ensure that the workpiece will not fall off during the transportation process.

[0028] The mounting bracket 100 includes a balancing cylinder 101 and a guide rail 102. The main function of the balancing cylinder 101 is to balance the gravity of the lifting device 200, the feeding device 300, the cross bar 400 and the adsorption device 500, so that the lifting motor drives the lifting device 200 to move up and down more sensitively and react more quickly, which will be very beneficial to improving the service life of the equipment; the guide rail 102 touches the lifting beam 204 on the side of the mounting bracket 200, and is used to provide guidance for the up and down movement of the lifting device 200.

[0029] The lifting device 200 includes a rack 201, a driving gear 202, a driven gear 203, and a lifting beam 204. There are two racks 201, which are respectively fixed to the inner side of the U-shaped mounting bracket 100; the driving gear 202 and the driven gear 203 are meshed with each other and are respectively meshed with the rack 201; the rotating shafts of the driving gear 202 and the driven gear 203 are commonly connected to the lifting beam 204 carrying the lifting rod 302; The driving gear 202 is driven by the lifting motor, and when it rotates, it drives the driving gear 202 and the driven gear 203 to move up and down together. When the lifting device 200 moves up and down, the rack 201 does not move, and the driven gear 203 and the driving gear 202 move up and down under the drive of the lifting motor; the lifting beam 204 is fixedly connected to the lifting motor, and the other side is fixedly connected to the lifting rod 302 of the feeding device 300. During the working process, it drives the lifting device 200 to move up and down as a whole. The lifting beam 204 contacts the guide slide rail 102 of the mounting bracket 100 to ensure the movement stability of the lifting beam 204.

[0030] The feeding device 300 includes an active rod 301, a lifting rod 302, a rocker 303, an upper connecting rod 304, a lower connecting rod 305, a middle connecting rod 306, and a feeding rod 307. The lifting rod 302 is fixedly connected to the lifting beam 204 of the lifting device 200, so the lifting rod 302 can only move up and down with the lifting beam 204. An empty slot gap is left in the middle of the lifting rod 302. The gap in the middle can ensure that the remaining rods of the feeding device 300 pass smoothly; one end of the active rod 301 is rotatably connected to the bottom of the lifting rod, and the other end is rotatably connected to the connection node between the upper connecting rod 304 and the feeding rod 307. The connecting rod driving motor drives the active rod 301 to reciprocate to complete the task of taking and placing materials; one end of the rocker 303 is connected to the lifting rod 3 02 The upper end is rotatably connected and rotates around the fixed axis, and the other end is respectively connected to the upper connecting rod 304, the lower connecting rod 305 and the middle connecting rod 306; the two ends of the upper connecting rod 305 are respectively connected to the rocking arm 303 and the feeding rod 307; the two ends of the lower connecting rod 305 are respectively connected to the rocking arm 303 and the feeding rod 307; the two ends of the middle connecting rod 305 are respectively connected to the rocking arm 303 and the feeding rod 307, and the function of the middle connecting rod 305 is to ensure the uniqueness of the movement when the mechanism is overlapped and passes through the middle vertical position; the three connecting rods are interchangeable; one end of the feeding rod 307 shares a node with the upper connecting rod 304 and the active rod 301, and is respectively connected to the middle connecting rod 306 and the lower connecting rod 305 at appropriate positions, and the other end is connected to the cross bar 400.

[0031] Crossbar rotating motors 401 are installed on both sides of the crossbar 400, which drive the reduction motor driving gear through the motor, and then drive the rotation of the crossbar during the rising or falling process. The sheet material adsorption device 500 and the workpiece can also be rotated, so as to use different mold opening angles and reduce the opening height of the slider when the end picker enters the mold area, which is more conducive to improving production costs.

[0032] The adsorption device 500 includes an adsorption device bracket 501 and a vacuum suction cup 502; the position adjustment drive device of the adsorption device 500 is pneumatically driven and the drive device is installed inside the cross bar 400; the vacuum suction cup 502 can ensure that the workpiece will not fall off during the process of transferring the workpiece.

[0033] Complete workflow: When the workpiece is at the upper station 700, the upper press 701 drives the upper die 702 to move downward, and the workpiece is extruded and formed under the joint action of the upper die 702 and the upper lower die 703, and the lifting device 200 drives the feeding device 300 to move downward, and at the same time, the connecting rod driving motor drives the active rod 301 to rotate toward the upper station 700, and the active rod 301 drives the feeding rod 302 to move to the upper station, and the cross bar 400 runs from its waiting position to the top of the workpiece in the mold area of ​​the upper station press 701. At this time, the upper press 701 drives the upper die 702 to move upward; with the descent of the lifting device 200, the height of the cross bar 400 is further reduced; after the cross bar rotating motor 401 rotates to make the adsorption device 500 on the cross bar 400 reach an ideal posture, the vacuum suction cup 502 sucks Attach the workpiece; the lifting device 200 drives the feeding device 300 to move upward, so that the cross bar 400 leaves the lower mold 703 area of ​​the upper station; the motor drives the active rod 301 to rotate toward the lower station 800, and the cross bar 400 runs from its waiting position to above the workpiece in the mold area of ​​the press 801 of the lower station. At this time, the lower press 801 and the lower upper mold 802 are above the mold area; the lifting device 200 drives the feeding device 300 to move downward, so that the height of the cross bar 400 is reduced, and at the same time, the vacuum suction cup 502 of the adsorption device 500 reaches the discharge point to release the workpiece; then the lifting device 200 drives the feeding device 300 to move upward, so that the cross bar 400 leaves the lower mold 803 area of ​​the lower station; the connecting rod driving motor drives the active rod 301 to rotate toward the upper station 800, and the cross bar 400 enters the waiting position of the upper press 700.

[0034] The present invention is used for the transportation of workpieces between presses in a high-speed automated stamping production line, and can transport workpieces from the upper station to the lower station more quickly, and this process is not subject to the shape, material, and double-mold spacing requirements of the molded parts and the corresponding mold opening angle requirements. Compared with the existing technology, the present invention simplifies the structure of the feeding mechanism, and the overall structure is simple, compact, and easy to maintain. It reduces the space occupied by the feeding mechanism in the press mold area, improves the speed and efficiency of workpiece transportation, and improves the performance utilization efficiency of the press. The present invention can more effectively match new servo press production lines, increase the popularity of high-speed automated stamping production lines, reduce production costs for automobile manufacturers, improve production efficiency and quality, and produce better economic and social benefits.

[0035] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0036] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-speed feeding device for a large-scale stamping line, comprising two mounting brackets (100) arranged opposite to each other and an upper sequence station (700) and a lower sequence station (800) symmetrically arranged on both sides of the two mounting brackets (100); characterized in that, A lifting device (200); two lifting devices (200) are provided; the two lifting devices (200) are relatively arranged on the inner side of the mounting bracket (100); and the lifting device (200) is lifted and lowered along the mounting bracket (100) in the vertical direction; a feeding device (300); the feeding device (300) is installed on the lifting device (200) and can be driven by the lifting device (200); the feeding device (300) is a parallelogram mechanism and can swing in a vertical plane; a cross bar (400); the two ends of the cross bar (400) are respectively rotatably connected to the working end of the feeding device (300); the cross bar (400) is provided with an adsorption device (500) capable of grabbing materials.

2. A high-speed feeding device for a large stamping line according to claim 1, characterized in that: The feeding device (300) comprises a lifting rod (302), an active rod (301), a rocking rod (303), an upper connecting rod (304), a lower connecting rod (305) and a feeding rod (307). The lifting rod (302) is mounted on the lifting device (300). The rocking rod (303) and the feeding rod (307) are arranged in parallel. The adjacent ends of the rocking rod (303) and the feeding rod (307) are connected by an upper connecting rod (304) arranged in parallel with each other. The lifting rod (302) and the lower connecting rod (304) are hingedly connected, the upper end of the rocker (303) is hinged on the lifting rod (302), one end of the feed rod (307) is hinged on the lower end of the lifting rod (302), and the other end is coaxially hinged with the upper connecting rod (304) and the feed rod (307); the lifting rod (302) is provided with a connecting rod drive motor, and the connecting rod drive motor drives the active rod (301) to rotate around the hinge point between the active rod (301) and the lifting rod (302).

3. The high-speed feeding device for a large-scale stamping line according to claim 1, characterized in that: The crossbar (400) is horizontally connected to one end of the feeding rod (304) away from the rotating guide block (303).

4. The high-speed feeding device for a large-scale stamping line according to claim 3, characterized in that: One end of the crossbar (400) is rotationally connected to the feed rod (304) via a crossbar rotating motor (401).

5. The high-speed feeding device for a large-scale stamping line according to claim 1, characterized in that: The adsorption device (500) comprises adsorption device brackets (501) uniformly distributed along the length direction of the crossbar (400); a vacuum suction cup (502) is provided at the end of the adsorption device bracket (501).

6. The high-speed feeding device for a large-scale stamping line according to claim 5, characterized in that: The adsorption device bracket (501) has an opening facing downwards; the middle portion of the adsorption device bracket (501) is connected to the crossbar (400); and the vacuum suction cups (502) are respectively provided at both ends of the adsorption device bracket (501).

7. The high-speed feeding device for a large-scale stamping line according to claim 1, characterized in that: The mounting bracket (100) is a U-shaped structure with an opening facing downward; the lifting device (200) is slidably arranged in the opening of the mounting bracket (100); the lifting device (200) comprises two racks (201) arranged opposite to each other; a driving gear (202) and a driven gear (203) are provided on the inner sides of the two racks (201); the driving gear (202) and the driven gear (203) are meshed with each other and respectively meshed with the racks (201); the rotating shafts of the driving gear (202) and the driven gear (203) are jointly connected to a lifting beam (204) that carries the lifting rod (302).

8. The high-speed feeding device for a large-scale stamping line according to claim 7, characterized in that: A guide rail (102) is provided on the inner side of the mounting bracket (100); the guide rail (102) cooperates with the lifting beam (204) to provide guidance.

9. The high-speed feeding device for a large-scale stamping line according to claim 1, characterized in that: The upper sequence station (700) comprises an upper sequence station press (701) and an upper sequence station lower mold (703); and an upper sequence station upper mold (702) is provided at the bottom of the upper sequence station press (701).

10. The high-speed feeding device for a large-scale stamping line according to claim 1, characterized in that: The downstream station (800) comprises a downstream station press (801) and a downstream station lower mold (803); and a downstream station upper mold (802) is provided at the bottom of the downstream station press (801).

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