Double-arm feeding device for large press line

Abstract

The invention discloses a double-arm 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 lifting rod is mounted on the lifting device; the upper end of the lifting rod is connected with a feeding rod through the rotary guide block; one end of the driving rod is hinged to the lower end of the lifting rod, and the driving rod is driven by the feeding motor to rotate. The other end of the feeding rod is hinged with the middle part of the feeding rod; 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 double-arm 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 double-arm feeding device for a large-scale stamping line.

[0006] The present invention is achieved through the following technical solutions: A double-arm 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 installed on the lifting device and can be driven by the lifting device; the feeding device includes a lifting rod, an active rod, a rotating guide block and a feeding rod; the lifting rod is installed on the lifting device; the upper end of the lifting rod is connected to the feeding rod through the rotating guide block; one end of the active rod is hinged to the lower end of the lifting rod and the active rod is driven to rotate by the feeding motor; the other end is hinged to the middle part of the feeding rod; so as to drive the feeding rod to swing back and forth between the upper sequence station and the lower sequence station; A cross bar; both ends of the cross bar are rotatably connected to the feeding rod; 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 rotary guide block is rotatably arranged on the top end of the active rod; and the rotary guide block can slide relatively along the length direction of the feed 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 scheme that the beneficial effects of the present invention are as follows: the present invention is used for feeding between presses in a high-speed automated stamping production line; the workpiece can be transported from the upper station to the lower station more quickly; this process is not subject to the shape, material, and double-mold spacing requirements of the formed parts and the corresponding mold opening angle requirements; compared with the existing technology, the present invention simplifies the structure of double-arm feeding; the overall structure is simple and compact; and it is easy to maintain, which reduces the space occupied by the transport device in the press mold area; improves the transport speed and efficiency of plate-shaped workpieces; and improves the performance utilization efficiency of the press; the present invention can more effectively match the new servo press production line; improve the popularity of high-speed automated stamping production lines; reduce production costs, improve production efficiency and quality for automobile manufacturers; and produce 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] Figure 6 It is a second structural schematic diagram of the feeding device according to a specific embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the first working state of the stamping line according to a specific embodiment of the present invention.

[0025] Figure 8 It is a schematic diagram of the second working state of the stamping line according to a specific embodiment of the present invention.

[0026] 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, rotating guide block; 304, 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, upper station press; 702, upper mold of upper station; 703, lower mold of upper station; 800, lower station; 801, lower station press; 802, upper mold of lower station; 803, lower mold of lower station; 900, column. DETAILED DESCRIPTION

[0027] 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.

[0028] As attached Figure 1-8 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.

[0029] The present invention is a very important part of an automated stamping line; it is located in front of or behind a metal forming press; the workpiece to be formed is disassembled by a destacking device; it passes through a cleaning machine or an oiling machine; the posture adjustment of the workpiece is completed by a centering device; the present invention is used to transport the aligned workpiece from the centering platform to the die area of ​​a 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-order press to the die area 800 of the lower-order press to complete the entire stamping process; the last-order feeding mechanism transports the workpiece from the die area of ​​the last-order press to a belt conveyor or other device; and the workpiece transportation work of the entire automated stamping line is completed.

[0030] The mounting bracket 100 is used to control the vertical up and down movement and guidance of the lifting device 200; it is installed on the ground between the press columns or on the press columns; it is arranged on both sides of the production line; the lifting device 200 is installed on the mounting bracket 100; the up and down movement of the entire feeding mechanism is realized; the feeding mechanism 300 is fixedly connected to the lifting device 200; the workpiece handling work is completed; an adsorption device 500 is installed on the cross bar 400; it ensures that the workpiece will not fall off during the transportation process.

[0031] 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 self-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.

[0032] 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 fixed on the inner side of the U-shaped mounting bracket 100 respectively; the driving gear 202 is meshed with the driven gear 203; and the driving gear 202 and the driven gear 203 are respectively meshed with the racks on both sides; the driving gear 203 is driven by the lifting motor; when rotating, it is meshed with the driven gear at the same time; when the lifting device 200 moves up and down, the rack 201 does not move; driven by the lifting motor, the driven gear 203 and the driving gear 202 move up and down; the lifting beam 204 is fixedly connected to the lifting motor; the other side is fixedly connected to the lifting rod 302 of the feeding device 300; during the working process, the lifting device 200 is driven to move up and down as a whole; the lifting beam 204 is in contact with the guide rail 102 of the mounting bracket 100; the movement stability of the lifting beam 204 is ensured.

[0033] The feeding device 300 includes an active rod 301, a lifting rod 302, a rotating guide block 303, and a feeding rod 304; 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; one end of the active rod 301 is rotationally connected to the bottom of the lifting rod; the other end is rotationally connected to a specific middle position of the feeding rod 304; the motor drives the active rod 301 to rotate back and forth to complete the task of taking and placing materials; the rotating guide block 303 is rotationally connected to the upper end of the lifting rod 302; a guiding groove is opened in the middle of the guide block for guiding the feeding rod 304; one end of the feeding rod 304 is placed in the guide groove of the rotating guide block 303; and slides in the guide groove; is connected to the active rod 301 at appropriate positions; the other end is connected to the cross bar 400.

[0034] Crossbar rotating motors 401 are installed on both sides of the crossbar 400; the motor drives the reduction motor driving gear; and then drives the rotation of the crossbar during the rising or falling process; it can also realize the rotation of the sheet material adsorption device 500 and the workpiece, 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 efficiency.

[0035] 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. 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.

[0036] Complete workflow: When the workpiece is at the upper station 700, the upper press 701 drives the upper die 702 to move downward; the workpiece is extruded and formed under the joint action of the upper die 702 and the upper lower die 703; the lifting device 200 drives the feeding device 300 to move downward; at the same time, the motor drives the active rod 301 to rotate toward the upper station 700; the active rod 301 drives the feeding rod 302 to move to the upper station; 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; 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; 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; the height of the cross bar 400 is reduced; 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; the cross bar 400 leaves the lower mold 803 area of ​​the lower station; the motor drives the active rod 301 to rotate toward the upper station 800; the cross bar 400 enters the waiting position of the upper press 700.

[0037] The present invention is used for the transportation of workpieces between presses in a high-speed automated stamping production line; the workpiece can be transported from the upper station to the lower station more quickly; 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; the overall structure is simple and compact; and easy to maintain; it compresses 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, improve production efficiency and quality for automobile manufacturers; and produce better economic and social benefits.

[0038] 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.

[0039] 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.

[0040] 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 double-arm feeding device for a large-scale stamping line, comprising two mounting brackets (100) arranged opposite to each other and an upper-order station (700) and a lower-order 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 arranged on the inner side of the mounting bracket (100) relative to each other; and the lifting device (200) moves up and down in the vertical direction along the mounting bracket (100); 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) comprises a lifting rod (302), an active rod (301), a rotating guide block (303) and a feeding rod (304); the lifting rod (302) is installed on the lifting device (200) The upper end of the lifting rod (302) is connected to the feeding rod (304) through the rotating guide block (303); one end of the active rod (301) is hinged to the lower end of the lifting rod (302) and the active rod (301) is driven to rotate by the feeding motor; the other end is hinged to the middle part of the feeding rod (304); so as to drive the feeding rod (304) to swing back and forth between the upper sequence station (700) and the lower sequence station (800); a cross bar (400); the two ends of the cross bar (400) are respectively connected to the feeding rod (304) for rotation; the cross bar (400) is provided with an adsorption device (500) capable of grabbing materials.

2. A double-arm feeding device for a large-scale stamping line according to claim 1, characterized in that: The rotating guide block (303) is rotatably arranged at the top end of the active rod (301); and the rotating guide block (303) is capable of relatively sliding along the length direction of the feeding rod (304).

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

4. A double-arm feeding device for a large-scale stamping line according to claim 3, characterized in that: One end of the cross bar (400) is rotationally connected to the feeding rod (304) via a cross bar rotating motor (401).

5. The double-arm 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. A double-arm 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 arranged at both ends of the adsorption device bracket (501).

7. A double-arm feeding device for a large-scale stamping line according to claim 1, characterized in that: The mounting bracket (100) is in 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 arranged on the inner sides of the two racks (201); the driving gear (202) and the driven gear (203) are meshed with each other and are 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 a lifting rod (302).

8. A double-arm 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 double-arm 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 mould (703); the upper sequence station upper mould (702) is disposed at the bottom of the upper sequence station press (701).

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

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