A bending machine

Abstract

The present invention discloses a bending machine for sheet metal bending, comprising: a base, the base is provided with a support platform, the support platform is fixedly connected with a material rack, a guide assembly, a drive assembly, a cutting assembly and a bending assembly, the sheet metal conveyed from the material rack passes through the guide assembly, the drive assembly, the cutting assembly in sequence and finally to the bending assembly for bending; a meter is provided between the drive assembly and the transmission assembly. The sheet metal of the present invention passes through the material rack, the guide assembly, the drive assembly, the cutting assembly and the bending assembly to bend and blank the product, the meter between the drive assembly and the transmission assembly records the product transmission length and drives the cutting assembly to cut the sheet metal parts, and the guide assembly matches the sheet metal parts of different thicknesses.

Description

Technical Field

[0001] The invention relates to the field of bending, and in particular to a bending machine. Background Art

[0002] In the field of sheet metal bending, sheet metal bending machines have simple structures and are easy to use, but their functions are too single and they have high requirements for product size specifications. Sheet metal parts of different lengths, widths and thicknesses cannot be cut and bent on the same device. Sheets need to be cut one by one and then placed on the bending machine by technicians. Bending with a bending machine is inefficient, and the manufacturing cost is high, time-consuming and labor-intensive. Summary of the invention

[0003] The object of the present invention is to provide a bending machine which can effectively solve the above-mentioned technical problems.

[0004] In order to achieve the purpose of the present invention, the following technical scheme is adopted: a bending machine for sheet metal bending, comprising: a base, the base is provided with a support platform, the support platform is fixedly connected with a material rack, a guide assembly, a drive assembly, a cutting assembly and a bending assembly, the sheet metal conveyed from the material rack passes through the guide assembly, the drive assembly, the cutting assembly in sequence and finally to the bending assembly for bending; a meter is provided between the drive assembly and the guide assembly;

[0005] The guide assembly includes a plurality of first guide wheels rotatably matched with the support platform, a plurality of second guide wheels are arranged directly above the first guide wheels, the second guide wheels are driven by a first positioning block, and the support platform is provided with a first T-slot for moving the first positioning block; the first positioning block is driven by a first screw.

[0006] Preferably, the driving assembly includes a driving wheel rotatably connected to the support platform, a driving motor that drives the driving wheel to rotate, and a driven wheel rotatably arranged above the driving wheel; the driven wheel is driven by a second positioning block, the support platform is provided with a second T-slot for the second positioning block to move, and the second positioning block is driven by a second screw.

[0007] Preferably, the first guide wheel, the second guide wheel and the driven wheel are all coaxially provided with a first baffle; the first baffle is coaxially fixed with a first guide column, the first guide column passes through the first guide wheel, the second guide wheel and the driven wheel are all fixedly connected with a first limit plate, and the first guide column passes through the support platform; the driving wheel is provided with a second baffle, the second baffle is provided with a second guide column, the second guide column passes through the driving wheel and is fixedly connected with a second limit plate, and the second guide column passes through the support platform; a first spring is provided between the first limit plate and the second limit plate and the support platform; the second baffle is coaxially fixed with a gear; the second guide column is provided with a limit rib, and the driving wheel is provided with a limit groove matching the limit rib.

[0008] Preferably, the cutting assembly comprises: a cutting table and a first hydraulic cylinder, wherein the first hydraulic cylinder is arranged directly above the cutting table, and a cutting knife is fixed to the telescopic rod of the first hydraulic cylinder.

[0009] Preferably, the bending assembly includes: a second hydraulic cylinder hinged to the support table; a bending block is hinged on the telescopic rod of the second hydraulic cylinder, the bending block is rotatably matched with the support table, the bending block is provided with a positioning column, the axis of the positioning column coincides with the rotation center of the bending block; the bending block is provided with a plurality of bending holes, one of which is fixed with a bending column.

[0010] Preferably, a positioning assembly is provided between the cutting assembly and the bending assembly, and the positioning assembly includes: a limit block, and the support platform is provided with a third T-slot for moving the limit block; the limit block is driven by a third screw rod, and the third screw rod is coaxially provided with a hand wheel, and the hand wheel has a plurality of locking grooves arrayed around the axis, and the support platform is fixed with a locking assembly that cooperates with the locking groove.

[0011] Preferably, the locking assembly includes: a positioning shell fixedly connected to the support table; a locking block slidingly provided in the positioning shell and cooperating with the locking groove; a second spring for resetting the locking block is provided in the positioning shell; a cover plate is fixed to the positioning shell, the locking block is provided with a driving part, and the cover plate is provided with a rectangular groove for moving the driving part.

[0012] Preferably, a third hydraulic cylinder is fixed to the limiting block, and an L-shaped push rod is fixed to the telescopic rod of the third hydraulic cylinder.

[0013] Preferably, a material guide platform is provided directly below the bending assembly, the material guide platform is provided with a material outlet, the material outlet is connected to a material receiving box, and the support platform is fixedly connected to a sensor, and the sensor controls the length of the sheet metal bending.

[0014] Preferably, four supporting columns are provided at the bottom of the base.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The sheet metal passes through the material rack, guide assembly, drive assembly, cutting assembly and bending assembly to be bent and blanked. The meter recorder between the drive assembly and the guide assembly records the product transmission length and drives the cutting assembly to cut the sheet metal. The guide assembly matches sheet metal parts of different thicknesses.

[0017] The first baffle plate and the second baffle plate cooperate with the first spring to facilitate matching of sheet metal parts of different widths and improve production efficiency.

[0018] By coordinating different bending holes and bending columns for different bending thicknesses, the phenomenon of pulling up the sheet metal during the bending process can be reduced.

[0019] The positioning assembly supports the sheet metal parts to reduce deformation during the sheet metal bending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for describing the embodiments are briefly introduced below.

[0021] Figure 1 It is a schematic diagram of the overall structure of the bending machine in an embodiment of the present invention;

[0022] Figure 2 It is a partial exploded view of the bending machine in the embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the base structure of the bending machine in an embodiment of the present invention;

[0024] Figure 4 This is a partial enlarged view of the bending machine A in the embodiment of the present invention.

[0025] 1. Base 2. Support table 3. Material rack 4. Meter counter 5. First guide wheel 6. Second guide wheel 7. First positioning block 8. First T-slot 9. First screw 10. Drive wheel 11. Drive motor 13. Driven wheel 14. Second positioning block 15. Second T-slot 16. Second screw 17. First baffle 18. First limit plate 19. Second baffle 20. Second guide column 21. Second limit plate 22. First spring 23. Gear 26. Cutting table 27. First hydraulic cylinder 28. Cutting knife 29. Second hydraulic cylinder 30. Bending block 31. Positioning column 32. Bending hole 33. Limiting block 34. Third T-slot 35. Third screw 36. Hand wheel 37. Locking groove 38. Third hydraulic cylinder 39. L-shaped push rod 40. Positioning shell 41. Locking block 42. Second spring 43. Cover plate 45. Material guide table 47. Material collection box 48. Sensor 49. Support column. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] like Figure 1 As shown, a bending machine is used for sheet metal bending, comprising: a base 1, comprising: a base 1, the base 1 is provided with a supporting platform 2, and four supporting columns 49 are provided at the bottom of the base 1.

[0028] The support table 2 is fixedly connected with a material rack 3, a guide assembly, a drive assembly, a cutting assembly and a bending assembly. The sheet metal conveyed from the material rack 3 passes through the guide assembly, the drive assembly, the cutting assembly and finally the bending assembly for bending. A meter 4 is provided between the drive assembly and the guide assembly.

[0029] like Figure 1 , Figure 2 As shown, the guide assembly includes three first guide wheels 5 rotatably matched with the support platform 2 , and a plurality of second guide wheels 6 are arranged directly above the first guide wheels 5 .

[0030] The second guide wheel 6 is driven by the first positioning block 7. The support platform 2 is provided with a first T-slot 8 for the first positioning block 7 to move, and the first positioning block 7 is driven by a first screw rod 9.

[0031] A first driving disk is fixed to the first screw rod 9, and the first driving disk drives the first screw rod 9 to rotate. The first screw rod 9 cooperates with the first positioning block 7 to drive the first positioning block 7 to move up and down along the first T-slot 8. The height between the first guide wheel 5 and the second guide wheel 6 is adjusted to facilitate matching of sheet metals of different thicknesses.

[0032] like Figure 2 , Figure 3 As shown, the driving assembly includes a driving wheel 10 rotatably connected to the support platform 2, a driving motor 11 driving the driving wheel 10 to rotate, and a driven wheel 13 rotatably arranged above the driving wheel 10. The driven wheel 13 is driven by a second positioning block 14.

[0033] The support platform 2 is provided with a second T-slot 15 for the movement of the second positioning block 14, and the second positioning block 14 is driven by a second screw 16. A second driving disk is fixed to the second screw 16, and the second driving disk drives the second screw 16 to rotate. The second screw 16 cooperates with the second positioning block 14 to drive the second positioning block 14 to move up and down along the second T-slot 15, and adjusts the height of the driving wheel 10 and the driven wheel 13, so as to match sheet metals of different thicknesses.

[0034] The first guide wheel 5, the second guide wheel 6 and the driven wheel 13 are coaxially provided with a first baffle 17, and a first guide column is coaxially fixed to the first baffle 17. The first guide column passes through the first guide wheel 5, the second guide wheel 6 and the driven wheel 13 and is fixedly connected with a first limit plate 18, and the first guide column is arranged through the support platform 2.

[0035] The driving wheel 10 is provided with a second baffle 19 , and the second baffle 19 is coaxially provided with a second guide column 20 . The second guide column 20 passes through the driving wheel 10 and is fixedly connected with a second limit plate 21 . The second guide column 20 is arranged through the support platform.

[0036] A first spring 22 is provided between the first limit plate 18 and the second limit plate 21 and the support platform 2. When the width of the sheet metal is greater than the width of the first guide wheel 5, the second guide wheel 6, the driven wheel 13 and the driving wheel 10, the first baffle 17 drives the first limit plate 18 and the second baffle 19 drives the second limit plate 21 to compress the first spring 22 to fix the end surface of the sheet metal.

[0037] A gear 23 is coaxially fixed to the second baffle 19, and a limiting rib is provided on the second guide column 20. The driving wheel 10 is provided with a limiting groove that cooperates with the limiting rib. The limiting rib cooperates with the limiting groove, and the driving motor 11 drives the gear 23 to rotate. The gear 23 drives the driving wheel 10 to rotate under the action of the limiting rib, and the driving wheel 10 drives the sheet metal to move toward the cutting assembly.

[0038] like Figure 1 , Figure 4 As shown, the cutting assembly includes: a cutting table 26 and a first hydraulic cylinder 27. The first hydraulic cylinder 27 is arranged directly above the cutting table 26, and a cutting knife 28 is fixed to the telescopic rod of the first hydraulic cylinder 27.

[0039] The cutting table 26 is provided with a cutting groove matched with the cutting knife 28. When the meter counter 4 reaches a set value, the first hydraulic cylinder 27 drives the cutting knife 28 downward to cut the sheet metal part.

[0040] After passing through the cutting assembly, the sheet metal piece moves to the bending assembly, and the bending assembly bends the sheet metal piece. The bending assembly includes: a second hydraulic cylinder 29 hinged to the support platform 2, and a bending block 30 is hinged to the telescopic rod of the second hydraulic cylinder 29.

[0041] The bending block 30 is rotatably matched with the support platform 2. The bending block 30 is provided with a positioning column 31. The axis of the positioning column 31 coincides with the rotation center of the bending block 30. The bending block 30 is provided with a plurality of bending holes 32, one of which is fixed with a bending column. The bending column can selectively match one of the bending holes 32 to facilitate matching of sheet metal parts of different thicknesses.

[0042] The support platform 2 is fixedly connected with a sensor 48, which controls the length of the sheet metal bending. When the sheet metal passes through the bending block 30 and moves to the sensor 48, the driving motor 11 stops rotating, the second hydraulic cylinder 29 drives the telescopic rod downward, and the bending block 30 drives the sheet metal to bend around the positioning column 31.

[0043] When the second hydraulic cylinder 29 drives the telescopic rod back to the initial position, the drive motor 11 starts to rotate. The sheet metal continues to move forward, and when the sheet metal contacts the sensor 48 again, the drive motor 11 stops rotating. The second hydraulic cylinder 29 drives the telescopic rod downward, and the bending block 30 drives the sheet metal to bend around the positioning column 31, and the sheet metal is bent three times in this reciprocating manner.

[0044] A positioning assembly is provided between the cutting assembly and the bending assembly. The positioning assembly includes: a limiting block 33 . The support platform 2 is provided with a third T-slot 34 for movement of the limiting block 33 . The limiting block 33 is driven by a third screw rod 35 .

[0045] The third screw rod 35 is coaxially provided with a hand wheel 36, and the hand wheel 36 has four locking grooves 37 arranged around the axis. The support platform 2 is fixed with a locking assembly matched with the locking groove 37, and the hand wheel 36 drives the limit block 33 to move along the third T-shaped groove 34, driving the limit block 33 to contact with the upper surface of the sheet metal part, thereby reducing the deformation of the sheet metal part during the bending process.

[0046] like Figure 1 , Figure 2 As shown, the locking assembly includes: a positioning shell 40 fixedly connected to the support platform 2, and a locking block 41 that cooperates with the locking groove 37 is slidably provided in the positioning shell 40.

[0047] A second spring 42 for resetting the locking block 41 is arranged in the positioning shell 40, and a cover plate 43 is fixed to the positioning shell 40. The locking block 41 is provided with a driving part, and the cover plate 43 is provided with a rectangular groove for the driving part to move.

[0048] The driving unit drives the locking block 41 to slide along the rectangular groove, and compresses the second spring 42 to drive the locking block 41 out of the locking groove 37. The hand wheel 36 drives the third screw 35 to move, and the third screw 35 drives the positioning block to move to contact the upper surface of the sheet metal. Under the action of the second spring 42, the locking block 41 cooperates with the locking groove 37 to achieve locking.

[0049] like Figure 1 , Figure 4 As shown, a guide platform is provided between the bending assembly and the positioning assembly, and the guide platform is fixedly connected to the support platform 2. A third hydraulic cylinder 38 is fixed to the limit block 33, and an L-shaped push rod 39 is fixed to the telescopic rod of the third hydraulic cylinder 38.

[0050] After the sheet metal part is bent three times, the L-shaped push rod 39 drives the sheet metal part to fall off the guide platform and the positioning column 31 .

[0051] like Figure 1 As shown, a material guide platform 45 is provided directly below the bending assembly, and the material guide platform 45 is provided with a material discharge port 46, which is connected to a material receiving box 47. The material guide platform 45 forms a certain angle with the horizontal plane, and when the sheet metal part falls into the material guide platform 45 and passes through the inclined surface, under the action of the inclined surface, the sheet metal part falls from the material discharge port 46 into the material receiving box 47.

[0052] like Figures 1 to 4As shown, when working, the whole roll of sheet metal is placed on the material rack 3, and the sheet metal is placed in the guide assembly. The first baffle 17 is driven to compress the first spring 22, so that the first baffle 17 is in contact with the side of the sheet metal. The first driving disk drives the first screw 9 to rotate, and drives the first positioning block 7 downward, and the second guide wheel 6 clamps the upper surface of the sheet metal.

[0053] After the clamping work of the guide assembly is completed, the sheet metal part moves to the driving wheel 10. The second driving disc drives the second screw 16 to rotate, and the second screw 16 drives the second positioning block 14 and the driven wheel 13 to contact the upper surface of the sheet metal part.

[0054] After the clamping work of the driving component is completed, the sheet metal moves to the positioning component. The driving part drives the locking block 41 to disengage from the locking groove 37, rotates the hand wheel 36 and drives the third screw 35 to rotate. The third screw 35 drives the limit block 33 downward, and when the positioning block contacts the upper surface of the sheet metal. The locking block 41 cooperates with the locking groove 37 under the action of the second spring 42 to achieve locking.

[0055] After the limiting block 33 is fixed, the sheet metal moves to the bending block 30 , and the thickness of the sheet metal is matched by adjusting the positions of the bending column and the bending hole 32 .

[0056] When the sheet metal part contacts the sensor 48, the bending block 30 drives the sheet metal part to bend, and after the first bending is completed, the driving motor 11 drives the sheet metal part to continue to move toward the sensor 48. When the sheet metal part triggers the sensor 48 again, the bending block 30 drives the sheet metal part to bend for the second time.

[0057] After the second bending is completed, the driving motor 11 drives the sheet metal part to continue to move toward the sensor 48, and the sheet metal part triggers the sensor 48 for the third time, and the bending block 30 bends the sheet metal part three times.

[0058] During the three bends, the meter 4 is triggered, the sheet metal moves to the set value, the first hydraulic cylinder 27 drives the cutting knife 28 to cut the sheet metal, and after the cutting is completed, the third hydraulic cylinder 38 drives the L-shaped push rod 39 to move.

[0059] The L-shaped push rod 39 drives the bent sheet metal part to fall into the material guide table 45 and finally into the material receiving box 47, and the sheet metal part is bent in this reciprocating manner.

[0060] Various modifications to these embodiments will be readily 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 invention.

Claims

1. A bending machine for sheet metal bending, characterized in that: The utility model comprises: a base, the base is provided with a support platform, the support platform is fixedly connected with a material rack, a guide assembly, a drive assembly, a cutting assembly and a bending assembly, the sheet metal conveyed from the material rack passes through the guide assembly, the drive assembly, the cutting assembly in sequence and finally to the bending assembly for bending; a meter is provided between the drive assembly and the guide assembly; The guide assembly includes a plurality of first guide wheels that are rotatably matched with the support platform, a plurality of second guide wheels are provided directly above the first guide wheel, the second guide wheel is driven by the first positioning block, and the support platform is provided with a first T-slot for the first positioning block to move; the first positioning block is driven by the first screw; the driving assembly includes a driving wheel rotatably connected to the support platform, a driving motor that drives the driving wheel to rotate, and a driven wheel that is rotatably provided above the driving wheel; the driven wheel is driven by the second positioning block, the support platform is provided with a second T-slot that moves the second positioning block, and the second positioning block is driven by the second screw; the first guide wheel, the second guide wheel and the driven wheel are all coaxially provided with a first baffle; the first baffle is coaxially fixed with a first guide column, the first guide column passes through the first guide wheel, the second guide wheel and the driven wheel are fixedly connected to the first limit plate, and the first guide column is arranged through the support platform; the driving wheel is provided with a second baffle, the second baffle is provided with a second guide column, the second guide column passes through the driving wheel and is fixedly connected with a second limit plate, and the second guide column is arranged through the support platform; the A first spring is provided between the first limit plate and the second limit plate and the support platform; a gear is coaxially fixed to the second baffle plate; a limit rib is provided on the second guide column, and a limit groove matched with the limit rib is provided on the driving wheel; the cutting assembly comprises: a cutting platform and a first hydraulic cylinder, the first hydraulic cylinder is arranged directly above the cutting platform, and a cutting knife is fixed on the telescopic rod of the first hydraulic cylinder; the bending assembly comprises: a second hydraulic cylinder hinged to the support platform; a bending block is hinged to the telescopic rod of the second hydraulic cylinder, and the bending block is matched with the support platform for rotation The bending block is provided with a positioning column, the axis of the positioning column coincides with the rotation center of the bending block; the bending block is provided with a plurality of bending holes, one of which is fixed with a bending column; a positioning assembly is provided between the cutting assembly and the bending assembly, and the positioning assembly comprises: a limit block, the support table is provided with a third T-slot for moving the limit block; the limit block is driven by a third screw rod, the third screw rod is coaxially provided with a hand wheel, the hand wheel has a plurality of locking grooves arrayed around the axis, and the support table is fixed with a locking assembly cooperating with the locking groove.

2. The bending machine according to claim 1, characterized in that: The locking assembly includes: a positioning shell fixedly connected to the support table; a locking block slidingly provided in the positioning shell and cooperating with the locking groove; a second spring for resetting the locking block is provided in the positioning shell; a cover plate is fixed to the positioning shell, the locking block is provided with a driving part, and the cover plate is provided with a rectangular groove for moving the driving part.

3. The bending machine according to claim 1, characterized in that: A third hydraulic cylinder is fixed to the limit block, and an L-shaped push rod is fixed to the telescopic rod of the third hydraulic cylinder.

4. The bending machine according to claim 1, characterized in that: Four supporting columns are arranged at the bottom of the base.

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