Automatic feeding device for stamping sheet metal

Abstract

The invention discloses an automatic feeding device for stamping sheet materials, comprising a frame, a feeding guide rail is provided on the frame, a stacking rack is provided on the feeding guide rail, a lifting slide is provided on the stacking rack, a lifting mechanism for lifting the lifting slide is provided on the frame, a first material detection mechanism and a second material detection mechanism are provided on one side of the stacking rack for respectively detecting two stamping sheets on the top of the stacking rack, a three-axis material picking mechanism and a positioning mechanism are provided on the frame, and a mechanical arm material picking mechanism and a material recovery box are provided on one side of the frame. The present invention can automatically feed materials, and automatically detect materials during feeding, so as to avoid stacking multiple stamping sheets into the stamping equipment, and the positioning is accurate, so as to improve the stamping quality.

Description

Technical Field

[0001] The invention belongs to the field of stamping equipment, and in particular relates to an automatic feeding device for stamping sheet materials. Background Art

[0002] Stamping is a production technology that uses the power of conventional or special stamping equipment to directly subject the sheet metal to deformation force in the die and deform it, thereby obtaining product parts with certain shapes, sizes and performances. Sheet metal, die and equipment are the three elements of stamping. Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet metal stamping, or stamping for short.

[0003] During stamping processing, stamping sheets are generally stacked together, and the sheets are taken out one by one during stamping. However, since the stamping sheets are smooth surfaces, they are easy to stick together when stacked. Sometimes two or more sheets are taken out at a time. If they are put into stamping equipment for stamping, the workpiece will be scrapped and there is also a risk of damaging the equipment. Therefore, currently they need to be supervised by dedicated personnel, and it is difficult to achieve full automation, the efficiency is low, and it consumes manpower. In addition, the current stamping sheet feeding device still has the problem of low positioning accuracy, which makes the scrap rate of the stamped workpiece high, which is not conducive to reducing production costs. Summary of the invention

[0004] In order to overcome the shortcomings and problems of the prior art, the invention provides an automatic feeding device for stamping sheets, which can automatically feed and perform automatic detection during feeding to avoid multiple stamping sheets being stacked and fed into the stamping equipment, and has precise positioning to improve the stamping quality.

[0005] The invention is realized by the following technical solutions:

[0006] An automatic feeding device for stamping sheets comprises a frame, a feeding guide rail is provided on the frame, a stacking rack is provided on the feeding guide rail, a lifting slide is provided on the stacking rack, a lifting mechanism for lifting the lifting slide is provided on the frame, a first material detection mechanism and a second material detection mechanism for respectively detecting two stamping sheets on the top of the stacking rack are provided on one side of the stacking rack, a three-axis picking mechanism and a positioning mechanism are provided on the frame, and a mechanical arm picking mechanism and a material recovery box are provided on one side of the frame.

[0007] A blowing mechanism is arranged on one side of the stacking rack, and the blowing mechanism comprises a supporting column, a blowing head is arranged on the top of the supporting column, and the blowing head is provided with a blowing hole, which is directly opposite to the two stamping sheets on the top of the stacking rack.

[0008] The stacking rack includes a base, which is located on the feed guide rail and is connected to a feed drive cylinder. The base is provided with a plurality of vertically arranged limit rods, and the lifting slide is provided with sliding holes corresponding to the limit rods, and the sliding holes can slide along the limit rods.

[0009] The first material detection mechanism comprises a first infrared transmitter and a first infrared receiver which are arranged correspondingly, and the first infrared transmitter is directly facing the first stamping sheet material on the top of the stacking rack.

[0010] The second material detection mechanism includes a second infrared transmitter and a second infrared receiver which are arranged correspondingly, and the second infrared transmitter is directly facing the second stamping sheet material on the top of the stacking rack.

[0011] The lifting mechanism comprises a lifting cylinder fixed to a frame, the lifting cylinder is connected to a lifting block, guide rods are arranged on both sides of the bottom surface of the lifting block, a guide cylinder matching the guide rods is arranged on the frame, and a through hole for the lifting block to pass through is arranged on the base.

[0012] The three-axis material picking mechanism comprises a longitudinal driving mechanism, a transverse driving mechanism is arranged on the longitudinal driving mechanism, a transverse shifting seat is arranged on the transverse driving mechanism, the transverse shifting seat is connected to a lifting mechanism, and the lifting mechanism is connected to a first material picking suction cup group.

[0013] The mechanical arm material picking mechanism comprises a multi-joint mechanical arm, and the multi-joint mechanical arm is connected to a second material picking suction cup group.

[0014] The positioning mechanism comprises a positioning platform, on which a positioning column and a positioning cylinder are arranged, and the positioning cylinder is connected with a positioning push block.

[0015] There are two material stacking racks, which are respectively located on both sides of the frame. The two material stacking racks are correspondingly arranged with a first material detection mechanism, a second material detection mechanism, a lifting slide, a jacking mechanism and a blowing mechanism.

[0016] The present invention is provided with a first material detection mechanism and a second material detection mechanism, which are used to detect the two stamping sheets on the top of the stacking rack. If there is a problem in taking out the materials, the first material detection mechanism and the second material detection mechanism simultaneously detect that there is no material. If a stamping sheet is taken out normally, the first material detection mechanism detects that there is no material, and the second material detection mechanism detects that there is material. This ensures accurate identification of whether a stamping sheet is taken out each time, and automates identification and loading, avoiding multiple stamping sheets from being stacked and fed into the stamping equipment. The positioning mechanism is accurate in positioning, which further improves the stamping quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the top view of the structure of the local parts of the present invention;

[0020] Figure 4It is a structural schematic diagram of the material stacking rack in the present invention;

[0021] Figure 5 It is a schematic diagram of the connection structure between the stacking rack and the jacking mechanism in the present invention;

[0022] Figure 6 It is a structural schematic diagram of the three-axis material taking mechanism in the present invention;

[0023] Figure 7 It is a structural schematic diagram of the positioning mechanism in the present invention;

[0024] Figure 8 It is a structural schematic diagram of the mechanical arm material taking mechanism in the present invention.

[0025] In the figure: 1-frame, 2-feeding guide rail, 3-stacking rack, 31-base, 32-feeding driving cylinder, 33-limiting rod, 34-through hole, 4-lifting slide, 5-lifting mechanism, 51-lifting cylinder, 52-lifting block, 53-guide rod, 54-guide cylinder, 6-first material detection mechanism, 61-first infrared transmitter, 62-first infrared receiver, 7-second material detection mechanism, 71-second infrared transmitter, 72-second infrared receiver, 8-three-axis material picking mechanism, 81-longitudinal driving mechanism, 82-lateral driving mechanism, 83-transverse shift seat, 84-lifting mechanism, 85-first material picking suction cup group, 9-positioning mechanism, 91-positioning platform, 92-positioning column, 93-positioning cylinder, 94-positioning push block, 10-mechanical arm material picking mechanism, 101-multi-joint mechanical arm, 102-second material picking suction cup group, 11-material recovery box, 12-blowing mechanism, 121-support column, 122-blowing head. DETAILED DESCRIPTION

[0026] In order to facilitate understanding by those skilled in the art, the invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 and Figure 2 As shown, an automatic feeding device for stamping sheet materials includes a frame 1, a feeding guide rail 2 is provided on the frame 1, a stacking rack 3 is provided on the feeding guide rail 2, the stacking rack 3 is used to stack stamping sheet materials, and the stacking rack 3 slides along the feeding guide rail 2 to transport materials. A lifting slide 4 is provided on the stacking rack 3, and a lifting mechanism 5 for lifting the lifting slide 4 is provided on the frame. When the lifting mechanism 5 is lifted, the lifting slide 4 is lifted, thereby lifting the stacked stamping sheet materials.

[0028] like Figure 3 (Combined Figure 1 and Figure 2), a first material detection mechanism 6 and a second material detection mechanism 7 are provided on one side of the stacking rack 3 for respectively detecting the two stamped sheets on the top of the stacking rack 3. The first material detection mechanism 6 and the second material detection mechanism 7 can respectively detect whether there are stamped sheets at the first and second positions on the top of the stacking rack 3. The first material detection mechanism 6 includes a first infrared transmitter 61 and a first infrared receiver 62 arranged in correspondence. The first infrared transmitter 61 is directly opposite to the first stamped sheet on the top of the stacking rack 3. The first infrared transmitter 61 emits infrared rays. If the first infrared receiver 62 can receive the infrared rays, there is no stamped sheet at the first position on the top of the stacking rack 3. The second material detection mechanism 7 includes a second infrared transmitter 71 and a second infrared receiver 72 arranged in correspondence. The second infrared transmitter 71 is directly opposite to the second stamped sheet on the top of the stacking rack 3. The second infrared transmitter 71 emits infrared rays. If the second infrared receiver 72 can receive the infrared rays, there is no stamped sheet at the second position on the top of the stacking rack 3.

[0029] like Figure 4 and Figure 5 (Combined Figure 1 and Figure 2 ), the stacking rack 3 includes a base 31, which is located on the feed guide rail 2. The base 31 is connected to a feed drive cylinder 32. A plurality of vertically arranged limit rods 33 are provided on the base 31. A sliding hole corresponding to the limit rod 33 is provided on the lifting slide 4, and the sliding hole can slide along the limit rod 33. The feed drive cylinder 32 can drive the base 31 to move. The limit rod 33 is used to limit the stamping sheet material and plays a role in preliminary positioning. The lifting mechanism 5 includes a lifting cylinder 51 fixed to the frame 1. The lifting cylinder 51 is connected to a lifting block 52. Guide rods 53 are provided on both sides of the bottom surface of the lifting block 52. A guide cylinder 54 matching the guide rod 53 is provided on the frame 1. When the lifting cylinder 51 drives the lifting block 52 to rise and fall, the guide rod 53 slides in the guide cylinder 54, so that the lifting block 52 runs smoothly. The base 31 is provided with a through hole 34 for the lifting block 52 to pass through. When the stacking rack 3 needs to be moved, the lifting block 52 is lowered below the base 31, and then the stacking rack 3 can be moved.

[0030] A blowing mechanism 12 is provided on one side of the stacking rack 3, and the blowing mechanism 12 includes a supporting column 121. A blowing head 122 is provided on the top of the supporting column 121, which is directly opposite to the two stamped sheets on the top of the stacking rack 3. The blowing head 122 is provided with a blowing hole, and the blowing hole blows out gas, so that the two stamped sheets on the top of the stacking rack 3 are easier to separate, which can further avoid the two stamped sheets from sticking together when taking the materials.

[0031] There are two stacking racks 3, which are respectively located on both sides of the frame 1. The two stacking racks 3 are correspondingly arranged with a first material detection mechanism 6, a second material detection mechanism 7, a lifting slide 4, a jacking mechanism 5 and a blowing mechanism 12, which can not only improve the loading efficiency of the equipment, but also realize non-stop operation. When the stamping sheet material on one stacking rack 3 is used up, it can be withdrawn for loading, and the other stacking rack 3 can still be in a working state, thereby avoiding the shutdown of subsequent equipment caused by shutdown.

[0032] like Figure 6 and Figure 7 (Combined Figure 1 and Figure 2 ), a three-axis material picking mechanism 8 and a positioning mechanism 9 are provided on the frame. The three-axis material picking mechanism 8 is used to take out the stamping sheet material on the stacking rack 3 and place it on the positioning mechanism 9 for precise positioning. The three-axis material picking mechanism 8 includes a longitudinal driving mechanism 81, a transverse driving mechanism 82 is provided on the longitudinal driving mechanism 81, a transverse driving mechanism 82 is provided on the transverse driving mechanism 82, a transverse shift seat 83 is provided on the transverse driving mechanism 82, the transverse shift seat 83 is connected to a lifting mechanism 84, and the lifting mechanism 84 is connected to a first material picking suction cup group 85. The first material picking suction cup group 85 can absorb the stamping sheet material, thereby realizing material picking, and the driving of the longitudinal driving mechanism 81, the transverse driving mechanism 82 and the lifting mechanism 84 enables the absorbed stamping sheet material to be transported in multiple directions.

[0033] The positioning mechanism 9 includes a positioning platform 91, on which a positioning column 92 and a positioning cylinder 93 are provided, and the positioning cylinder 93 is connected to a positioning push block 94. In order to make it easy to take out the stamping sheet from the stacking rack 3, there is a certain gap between the limit rod 33 and the stamping sheet, so that the position of the stamping sheet cannot be accurately positioned, and the positioning mechanism 9 is required for accurate positioning. The positioning cylinder 93 pushes the positioning push block 94 to press the edge of the stamping sheet close to the positioning column 92, so that it can be accurately positioned. After the positioning is completed, the positioning cylinder 93 drives the positioning push block 94 to retract, and the stamping sheet that has been positioned well can be easily taken out.

[0034] like Figure 8 (Combined Figure 1 and Figure 2 ), a robotic arm material picking mechanism 10 and a material recovery box 11 are provided on one side of the frame 1. When it is detected that the stamping sheet material is not a single piece when picking up the material, the material picking will fail and the material will be placed in the material recovery box 11. The robotic arm material picking mechanism 10 is used to take out the stamping sheet material that has been precisely positioned from the positioning mechanism 9 and place it into the relevant stamping equipment. The robotic arm material picking mechanism 10 includes a multi-joint robotic arm 101, and the multi-joint robotic arm 101 is connected to a second material picking suction cup group 102. The multi-joint robotic arm 101 can move in multiple axes, and can drive the second material picking suction cup group 102 to suck the stamping sheet material and transport the material at multiple angles.

[0035] Working process: first, the stamping sheets are stacked and placed on the stacking rack 3, and the lifting slide 4 carries the stamping sheets. Then the stacking rack 3 is driven to move along the feed guide rail 2 to a predetermined position, and the lifting cylinder 51 drives the lifting block 52 to rise. The lifting block 52 lifts the lifting slide 4 after passing through the through hole 34, thereby raising the stamping sheets. When the first material detection mechanism 6 detects the stamping sheets, the lifting cylinder 51 stops, and the three-axis material picking mechanism 8 takes the first stamping sheet on the top of the stacking rack 3. At this time, the blowing mechanism 12 blows out gas, making it easier to separate the two stamping sheets on the top of the stacking rack 3, so as to avoid the two stamping sheets sticking together when picking up the materials. After the three-axis material picking mechanism 8 picks up the material, the first material detection mechanism 6 and the second material detection mechanism 7 detect the material at the same time. If the first material detection mechanism 6 detects that there is no material, the second material detection mechanism 7 will detect that there is material. At this time, the material picking is normal, and the three-axis material picking mechanism 8 places the stamping sheet material on the positioning mechanism 9 for precise positioning. If the first material detection mechanism 6 and the second material detection mechanism 7 both detect that there is no material, the material picking is abnormal. The three-axis material picking mechanism 8 places the stamping sheet material in the material recovery box, and the robotic arm material picking mechanism 10 takes the stamping sheet material that has been precisely positioned from the positioning mechanism 9 and puts it into the relevant stamping equipment for stamping processing.

[0036] The above embodiments are preferred implementations of the invention and are not limitations of the invention. Without departing from the inventive concept of the invention, any obvious replacements are within the protection scope of the invention.

Claims

1. An automatic feeding device for stamping sheet materials, comprising a frame (1), characterized in that: The frame is provided with a feed guide rail (2), a stacking rack (3) is provided on the feed guide rail, a lifting slide (4) is provided on the stacking rack, a lifting mechanism (5) for lifting the lifting slide is provided on the frame, a first material detection mechanism (6) and a second material detection mechanism (7) for respectively detecting two stamping sheets on the top of the stacking rack are provided on one side of the stacking rack, a three-axis material picking mechanism (8) and a positioning mechanism (9) are provided on the frame, and a mechanical arm material picking mechanism (10) and a material recovery box (11) are provided on one side of the frame; A blowing mechanism (12) is provided on one side of the stacking rack (3), the blowing mechanism comprising a support column (121), a blowing head (122) is provided on the top of the support column, facing between two stamping sheets at the top of the stacking rack, and a blowing hole is provided on the blowing head; The stamped sheets are stacked and placed on the stacking rack, and the lifting slide carries the stamped sheets, driving the stacking rack to move along the feed guide rail to the predetermined position. The lifting mechanism lifts the lifting slide to make the stamped sheets rise. When the first material detection mechanism detects the stamped sheets, the lifting mechanism stops, and the three-axis material picking mechanism takes the first stamped sheet on the top from the stacking rack. At this time, the blowing mechanism blows out gas. After the three-axis material picking mechanism picks up the materials, the first material detection mechanism and the second material detection mechanism detect the materials at the same time. If the first material detection mechanism detects that there is no material, the second material detection mechanism will detect that there is material. At this time, the material picking is normal, and the three-axis material picking mechanism places the stamped sheets on the positioning mechanism for precise positioning. If both the first material detection mechanism and the second material detection mechanism detect that there is no material, the material picking is abnormal, and the three-axis material picking mechanism places the stamped sheets in the material recovery box.

2. The automatic feeding device for stamping sheet materials according to claim 1 is characterized in that: The stacking rack (3) comprises a base (31), which is located on the feed guide rail (2), is connected to a feed drive cylinder (32), is provided with a plurality of vertically arranged limit rods (33), and is provided with sliding holes corresponding to the limit rods on the lifting slide (4), and the sliding holes can slide along the limit rods.

3. The automatic feeding device for stamping sheet materials according to claim 2 is characterized in that: The first material detection mechanism (6) comprises a first infrared transmitter (61) and a first infrared receiver (62) which are arranged correspondingly, and the first infrared transmitter is directly opposite to the first stamping sheet material on the top of the stacking rack (3).

4. The automatic feeding device for stamping sheet materials according to claim 3 is characterized in that: The second material detection mechanism (7) comprises a second infrared transmitter (71) and a second infrared receiver (72) which are arranged correspondingly, and the second infrared transmitter is directly opposite to the second stamping sheet material on the top of the stacking rack (3).

5. The automatic feeding device for stamping sheet materials according to claim 4 is characterized in that: The lifting mechanism (5) comprises a lifting cylinder (51) fixed to the frame (1), the lifting cylinder being connected to a lifting block (52), guide rods (53) being provided on both sides of the bottom surface of the lifting block, a guide cylinder (54) matching the guide rods being provided on the frame, and a through hole (34) for the lifting block to pass through being provided on the base (31).

6. The automatic feeding device for stamping sheet materials according to claim 5 is characterized in that: The three-axis material retrieving mechanism (8) comprises a longitudinal drive mechanism (81), a transverse drive mechanism (82) is provided on the longitudinal drive mechanism, a transverse shift seat (83) is provided on the transverse drive mechanism, the transverse shift seat is connected to a lifting mechanism (84), and the lifting mechanism is connected to a first material retrieving suction cup group (85).

7. The automatic feeding device for stamping sheet materials according to claim 6 is characterized in that: The mechanical arm material-retrieving mechanism (10) comprises a multi-joint mechanical arm (101), and the multi-joint mechanical arm is connected to a second material-retrieving suction cup group (102).

8. The automatic feeding device for stamping sheet materials according to claim 7, characterized in that: The positioning mechanism (9) comprises a positioning platform (91), on which a positioning column (92) and a positioning cylinder (93) are provided, and the positioning cylinder is connected to a positioning push block (94).

9. The automatic feeding device for stamping sheet materials according to any one of claims 1 to 8, characterized in that: The material stacking racks (3) are provided with two, respectively located on both sides of the frame (1), and the two material stacking racks are respectively provided with a first material detection mechanism (6), a second material detection mechanism (7), a lifting slide (4), a lifting mechanism (5) and an air blowing mechanism (12).

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