Edge folding device of side plate forming machine

Abstract

The invention discloses an edge folding device of a side plate forming machine. The edge folding device comprises a rack, a transverse moving mechanism, a mounting plate, an upper pressing die mechanism and a lower pressing die mechanism. The mounting plate is connected to the rack in a sliding mode, the upper pressing die mechanism is connected with the mounting plate and located on the mounting plate, and the lower pressing die mechanism is connected with the mounting plate; the transverse moving mechanism drives the mounting plate to transversely move; the upper pressing die mechanism comprises a first driving assembly, an upper die frame and a pressing head, and the first driving assembly drives the pressing head to move in the vertical direction through the upper die frame; the lower pressing die mechanism comprises a second driving assembly, a lower die frame and an upper punch, and the second driving assembly drives the upper punch to move in the vertical direction through the lower die frame. In the automatic edge folding process of the pressing head and the upper punch, the upper pressing die mechanism and the lower pressing die mechanism can move transversely, the structure is simplified (a device special for clamping and feeding is omitted), and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of side plate production, specifically to a hemming device for a side plate forming machine. Background Art

[0002] Profiles such as radiator side plates are subjected to forming operations such as punching, hemming, and cutting by a side plate forming machine. Among them, hemming is the most important operation. In the existing side plate forming machines, the hemming device needs to be used in combination with a material clamping and feeding device, and during the hemming process, a large oil cylinder is often used for the lifting of the hemming die, resulting in a high failure rate and affecting the hemming efficiency. Summary of the Invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a hemming device for a side plate forming machine, which simplifies the structure (eliminates the material clamping and feeding device) and improves the production efficiency.

[0004] To achieve the above purpose, the following technical solutions are adopted:

[0005] Advantages of the present invention:

[0006] 1. During the automatic hemming process of the pressing head and the upper punch, the upper die pressing mechanism and the lower die pressing mechanism can perform lateral movement, which simplifies the structure (eliminates the device specifically for material clamping and feeding), and improves the production efficiency;

[0007] 2. The upper die pressing mechanism and the lower die pressing mechanism adopt a transmission structure of a motor, a screw nut pair, and a linkage mechanism, with stable, accurate, and labor-saving transmission and low failure rate;

[0008] 3. The structure of the present invention is reasonable and compact, easy to use, and the action is precise, greatly improving the hemming efficiency and hemming quality. Brief Description of the Drawings

[0009] Figure 1 It is a schematic structural diagram of the present invention;

[0010] Figure 2 It is a schematic structural diagram of the present invention (from another angle);

[0011] Figure 3 It is a schematic structural diagram of the present invention (from another angle, hiding the housing outside the frame and the first nut);

[0012] Figure 4 It is a schematic structural diagram of the upper die pressing mechanism of the present invention;

[0013] Figure 5 It is a schematic structural diagram of the lower die pressing mechanism of the present invention;

[0014] Figure 6 It is a schematic structural diagram of the calibration device of the present invention.

[0015] Description of the drawing symbols:

[0016] Frame 1, slide rail 11, lateral movement mechanism 2, first motor 21, first lead screw 22, first nut 23, mounting plate 3, slider 31, upper pressing die mechanism 4, first driving assembly 41, second motor 411, speed reducer 412, second lead screw 413, second nut 414, first guide post 421, first guide plate 422, support table 423, first linkage mechanism 424, first crank 4241, first linkage rod 4242, first connecting block 4243, first linkage shaft 4244, second guide post 4245, template 4246, first ejector pin 4247, lateral bolt shaft 4248, pressing head 43, lower pressing die mechanism 5, upper punch 51, punch holder 511, punch block 512, third guide post 521, second guide plate 522, second linkage mechanism 523, second crank 5231, second linkage rod 5232, second connecting block 5233, second linkage shaft 5234, second ejector pin 5235, abutting block 53, second driving assembly 54, second motor 541, speed reducer 542, second lead screw 543, calibration device 6, air cylinder 61, side pressing plate 62, mounting block 63. Detailed implementation manners

[0017] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] Embodiment 1

[0019] Refer to Figure 1-6 , the hemming device of the side plate forming machine, including a frame 1, a lateral movement mechanism 2, a mounting plate 3, an upper pressing die mechanism 4 and a lower pressing die mechanism 5;

[0020] The mounting plate 3 is slidably connected to the frame 1. The upper pressing die mechanism 4 is connected to the mounting plate 3 and is located above the mounting plate 3. The lower pressing die mechanism 5 is connected to the mounting plate 3;

[0021] The lateral movement mechanism 2 drives the mounting plate 3 to move laterally. Specifically, the lateral movement mechanism 2 includes a first motor 21, a first lead screw 22 and a first nut 23; the first motor 21 is installed on the frame 1, the first lead screw 22 is horizontally arranged and connected to the first motor 21, the first nut 23 is sleeved on the first lead screw 22, and the mounting plate 3 is connected to the first nut 23 through a connecting block; a horizontal slide rail 11 is provided on the frame 1, and a slider 31 adapted to the slide rail 11 is provided at the bottom of the mounting plate 3. Thus, the first motor 21 drives the first lead screw 22 to rotate, the first nut 23 drives the mounting plate 3 to move laterally, and further drives the upper pressing die mechanism 4 and the lower pressing die mechanism 5 to move laterally.

[0022] The upper pressing die mechanism 4 includes a first driving component 41, an upper die holder, and a pressing head 43. The first driving component 41 drives the pressing head 43 to move in the vertical direction.

[0023] Specifically, the first driving component 41 includes a second motor 411, a speed reducer 412, a second lead screw 413, and a second nut 414. The second lead screw 413 is vertically arranged and connected to the second motor 411 through the speed reducer 412. The second nut 414 is sleeved on the second lead screw 413.

[0024] The upper die holder includes a plurality of first guide columns 421, a first guide plate 422, a support table 423, and a first linkage mechanism 424. There are a plurality of first guide columns 421, which are arranged on the support table 423. The first guide plate 422 is sleeved on the first guide columns 421 and connected to the second nut 414. The second motor 411 and the speed reducer 412 are connected to the bracket at the upper end of the first guide column 421;

[0025] There are two groups of first linkage mechanisms 424, which are symmetrically arranged on the left and right. Each group of first linkage mechanisms 424 includes a first crank 4241, a first linkage rod 4242, a first connecting block 4243, a first linkage shaft 4244, a plurality of second guide columns 4245, and a template 4246. One end of the first crank 4241 is connected to the second nut 414 of the first driving component 41, and the other end of the first crank 4241 is rotatably connected to the support table 423; A first through hole is provided in the middle of the first crank 4241, the first linkage rod 4242 passes through the first through hole, a first top bolt 4247 is provided at the upper end of the first linkage rod 4242, and the lower end of the first linkage rod 4242 is connected to the first connecting block 4243; The upper end of the first linkage shaft 4244 is connected to the first connecting block 4243; There are a plurality of second guide columns 4245, which are arranged on the mounting plate 3. The template 4246 is sleeved on the second guide columns 4245 and connected to the lower end of the first linkage shaft 4244.

[0026] A transverse bolt shaft 4248 is horizontally inserted through the corresponding position between the middle of the first crank 4241 and the first linkage rod 4242. The transverse bolt shaft 4248 passes through the first linkage rod 4242, and both ends are supported by bearings.

[0027] The pressing head 43 is connected to the template 4246 and is located below the template 4246.

[0028] The second motor 411 drives the second lead screw 413 to rotate through the speed reducer 412. The second nut 414 drives the first guide plate 422 and the first crank 4241 to move downward. Further, the first linkage rod 4242 drives the first linkage shaft 4244 to move downward, and then drives the pressing head 43 on the template 4246 to press downward.

[0029] The downward pressing die mechanism 5 includes a second driving assembly 54, a lower die holder, and an upper punch 51. The second driving assembly 54 drives the upper punch 51 to move in the vertical direction through the lower die holder.

[0030] Specifically, the second driving assembly 54 includes a second motor 541, a speed reducer 542, a second lead screw 543, and a second nut. The second lead screw 543 is vertically arranged and connected to the second motor 541 through the speed reducer 542. The second nut is sleeved on the second lead screw 543.

[0031] The lower die holder includes multiple third guide columns 521, a second guide plate 522, and a second linkage mechanism 523. There are multiple third guide columns 521, which are arranged on the mounting plate 3. The second guide plate 522 is sleeved on the third guide columns 521 and connected to the second nut of the second driving assembly 54.

[0032] There are two groups of the first linkage mechanisms 523, which are symmetrically arranged left and right. Each second linkage mechanism 523 includes a second crank 5231, a second linkage rod 5232, a second connecting block 5233, and a second linkage shaft 5234. One end of the second crank 5231 is connected to the second nut of the second driving assembly 54, and the other end of the second crank 5231 is rotatably connected to the mounting plate 3 and located below the mounting plate 3. A second through hole is provided in the middle of the second crank 5231. The second linkage rod 5232 passes through the second through hole. A second top bolt 5235 is provided at the lower end of the second linkage rod 5232. The upper end of the second linkage rod 5232 is connected to the second connecting block 5233. The upper end of the second linkage shaft 5234 is connected to the second connecting block 5233. A third through hole is provided on the mounting plate 3. The second linkage shaft 5234 passes through the third through hole and is connected to the upper punch 51.

[0033] A transverse bolt shaft is horizontally inserted through the corresponding position between the middle of the second crank 5231 and the second linkage rod 5232. The transverse bolt shaft passes through the second linkage rod 5232, and both ends are supported by bearings.

[0034] The upper punch 51 includes a punch holder 511 and punch blocks 512. The punch holder 511 is a square box with an upper opening. There are two punch blocks 512, which are detachably connected to the punch holder 511 at intervals.

[0035] A support block 53 is provided between the two punch blocks 512. The length of the support block 53 is equal to the length of the pressing head 43, and the width of the support block 53 is slightly larger than the width of the pressing head 43. The position of the support block 53 corresponds to that of the pressing head 43. The height of the support block 53 is less than the height of the punch blocks 512, and the upper surface of the support block 53 is flush with the upper surface of the punch blocks 512 before movement. Correspondingly, a through hole is provided at the bottom of the punch holder 511, which can connect the support block 53 to the mounting plate 3 (it can be connected by a connecting rod). The above upper punch 51, punch blocks 512, and support block 53 can be replaced with appropriate specifications according to the bending width requirements of different side plates.

[0036] Workflow:

[0037] The side plate material feeding channel is located on the supporting block 53. The second motor 411 of the upper pressing die mechanism 4 drives the second lead screw 413 to rotate through the speed reducer 412. The second nut 414 drives the first guide plate 422 and the first crank 4241 to move downward. Then, the first linkage rod 4242 drives the first linkage shaft 4244 to move downward, and further drives the pressing head 43 on the template 4246 to press downward on the side plate material.

[0038] Then, the second motor 541 of the lower pressing die mechanism 5 drives the second lead screw 543 to rotate through the speed reducer 542. The second nut drives the second guide plate 522 and the second crank 5231 to move upward. Then, the second linkage rod 5232 drives the second linkage shaft 5234 to move upward, and further drives the upper punch 51 to move upward, causing the two sides of the side plate material to bend upward.

[0039] During the process of the pressing head 43 and the upper punch 51 cooperating to perform hemming, after each hemming is completed, the pressing head 43 retracts upward. The first motor 21 drives the first lead screw 22 to rotate. The first nut 23 drives the mounting plate 3 to move horizontally in the feeding direction, and further drives the upper pressing die mechanism 4 and the lower pressing die mechanism 5 to move horizontally in the feeding direction. Then, during the process of the pressing head 43 pressing downward on the side plate material that has not been hemmed and moving forward, a new hemming is performed.

[0040] During the automatic hemming process of the pressing head 43 and the upper punch 51, the upper pressing die mechanism 4 and the lower pressing die mechanism 5 can perform horizontal movement, which simplifies the structure (eliminates the device specifically for clamping and feeding materials), and improves production efficiency.

[0041] Embodiment 2

[0042] Combined with reference Figure 6 To ensure the centered transmission of the side plate material, the present invention further includes a correction device 6. The correction device 6 includes a cylinder 61, a side pressing plate 62, and a mounting block 63. The cylinder 61 is detachably mounted on the side of the upper punch 51 through the mounting block 63 (there are screw holes on the side of the upper punch 51 and the mounting block 63, and screws can be used for installation). The side pressing plate 62 is connected to the piston rod of the cylinder 61 and is located on the upper side of the cylinder 61. Multiple sets of symmetric correction devices 6 can be set. Each set of correction devices 6 is arranged oppositely and is respectively located on both sides of the upper punch 51.

[0043] When in use, different from Embodiment 1, the side pressing plates 62 of the correction device 6 clamp the side plate material with each other under the action of the cylinder 61 to make the side plate material centered. Then, the pressing head 43 presses downward on the side plate material, and the side pressing plates 62 of the correction device 6 retract and withdraw from the upper side of the upper punch 51, and the pressing head 43 folds the edge upward.

[0044] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. Flanging device of side plate forming machine, characterized in that: It includes a frame, a transverse movement mechanism, a mounting plate, an upper pressing die mechanism and a lower pressing die mechanism; The mounting plate is slidably connected to the frame, the upper pressing die mechanism is connected to the mounting plate and is located above the mounting plate, and the lower pressing die mechanism is connected to the mounting plate; the transverse movement mechanism drives the mounting plate to move horizontally; The upper pressing die mechanism includes a first driving component, an upper die holder and a pressing head, and the first driving component drives the pressing head to move in the vertical direction through the upper die holder; The lower pressing die mechanism includes a second driving component, a lower die holder and an upper punch, and the second driving component drives the upper punch to move in the vertical direction through the lower die holder.

2. The hemming device of the side plate forming machine according to claim 1, wherein: The transverse movement mechanism includes a first motor, a first lead screw and a first nut; The first motor is installed on the frame, the first lead screw is arranged horizontally and is connected to the first motor, the first nut is sleeved on the first lead screw, and the mounting plate is connected to the first nut; A horizontal slide rail is provided on the frame, and a slider adapted to the slide rail is provided at the bottom of the mounting plate.

3. The hemming device of the side plate forming machine according to claim 1, characterized in that: Both the first driving component and the second driving component include a second motor, a speed reducer, a second lead screw and a second nut. The second lead screw is arranged vertically and is connected to the second motor through the speed reducer, and the second nut is sleeved on the second lead screw.

4. The hemming device of the side plate forming machine according to claim 3, characterized in that: The upper die holder includes a plurality of first guide posts, a first guide plate, a support table and a first linkage mechanism. There are a plurality of first guide posts, which are arranged on the support table. The first guide plate is sleeved on the first guide posts and is connected to the second nut; There are two groups of the first linkage mechanisms, which are symmetrically arranged left and right. Each group of the first linkage mechanisms includes a first crank, a first linkage rod, a first connecting block, a first linkage shaft, a second guide post and a template. One end of the first crank is connected to the second nut of the first driving component, and the other end of the first crank is rotatably connected to the support table; a first through hole is provided in the middle of the first crank, the first linkage rod passes through the first through hole, a first top bolt is provided at the upper end of the first linkage rod, and the lower end of the first linkage rod is connected to the first connecting block; the upper end of the first linkage shaft is connected to the first connecting block; There are a plurality of second guide posts, which are arranged on the mounting plate. The template is sleeved on the second guide posts and is connected to the lower end of the first linkage shaft.

5. The hemming device of the side plate forming machine according to claim 4, characterized in that: A transverse bolt shaft is horizontally inserted through the corresponding position between the middle of the first crank and the first linkage rod. The transverse bolt shaft passes through the first linkage rod and is supported by bearings at both ends.

6. The hemming device of the side plate forming machine according to claim 4, characterized in that: The pressing head is connected to the template and is located below the template.

7. The hemming device of the side plate forming machine according to claim 3, characterized in that: The lower die holder includes a plurality of third guide posts, a second guide plate and a second linkage mechanism. There are a plurality of third guide posts, which are arranged on the mounting plate. The second guide plate is sleeved on the third guide posts and is connected to the second nut of the second driving component; There are two sets of the second linkage mechanisms, which are symmetrically arranged on the left and right. Each set of the second linkage mechanisms includes a second crank, a second linkage rod, a second connecting block and a second linkage shaft. One end of the second crank is connected to the second nut of the second driving component, and the other end of the second crank is rotatably connected to the mounting plate and is located below the mounting plate. A second through hole is provided in the middle of the second crank, the second linkage rod passes through the second through hole, a second top bolt is provided at the lower end of the second linkage rod, and the upper end of the second linkage rod is connected to the second connecting block. The upper end of the second linkage shaft is connected to the second connecting block. The mounting plate is provided with a third through hole, and the second linkage shaft passes through the third through hole and is connected to the upper punch.

8. The hemming device of the side plate forming machine according to claim 7, characterized in that: The upper punch includes a punch holder and a punch block. The punch holder is a square frame with an upper opening, and there are two punch blocks, which are detachably connected at intervals inside the punch holder.

9. The hemming device of the side plate forming machine according to claim 8, wherein: A supporting block is provided between the two punch blocks, the supporting block is connected to the mounting plate, and the position of the supporting block corresponds to that of the pressing head.

10. The hemming device of the side plate forming machine according to claim 1, characterized in that: It further includes a calibration device. The calibration device includes a cylinder, a side pressing plate and a mounting block. The cylinder is detachably mounted on the side of the upper punch through the mounting block, and the side pressing plate is connected to the piston rod of the cylinder and is located on the upper side of the cylinder.

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