A bending tool for special-shaped accessories

Abstract

The present invention provides a bending tool for special-shaped accessories, comprising a lower base plate, an upper top plate and a driving cylinder, wherein corresponding threaded holes are opened at four corners of the upper surface of the lower base plate and four corners of the lower surface of the upper top plate, guide pillars are connected with threads in the threaded holes, the driving cylinder is fixedly connected to the upper surface of the upper top plate, the movable end of the driving cylinder passes through the upper top plate, and a connecting block is fixedly installed on the end that passes through, the lower surface of the connecting block is opened with threaded holes, a bending mold is connected with threads in the threaded holes, a supporting plate is arranged on the upper surface of the lower base plate, a pair of side plates are arranged on both sides of the supporting plate along the length direction, a fixing device is arranged on the periphery of the upper surface of the supporting plate, and a bending platform is arranged on the middle part of the upper surface of the supporting plate, so as to solve the problem that the lower mold base of the bending machine is too wide and cannot be operated, and manual bending has to be adopted, which leads to high labor intensity for operators, not only low work efficiency and increased cost consumption, but also certain safety risks.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing equipment, and in particular relates to a bending tool for special-shaped accessories. Background Art

[0002] The invention with the publication number CN211651421U discloses a hole position detection tool for a special-shaped workpiece, the lower part of which is made into an arched bend, and a vertical surface bent upward is integrally formed on the middle side wall of the arched bend, and a plurality of reserved holes are formed on the arched bend and the vertical surface; the hole position detection tool comprises a base plate, an arched door frame and a sliding support plate, wherein the top of the base plate is fixedly provided with an arched door frame matched and supported on the bottom of the arched bend, and a linear guide is fixedly provided on the top surface of the base plate, and a sliding support plate matched and supported on the side wall of the vertical surface is slidably connected to the linear guide; a plurality of positioning columns inserted and positioned inside the reserved holes are fixedly provided on the base plate, the sliding support plate and the arched door frame. The hole position detection tool can accurately locate a plurality of reserved holes on a special-shaped workpiece, effectively improving the hole position detection and processing efficiency of batch-processed workpieces.

[0003] However, in the above technology, since the lower die base of the bending machine is too wide to operate, it has to be manually bent by fire bending, which leads to high labor intensity for operators. Not only is the work efficiency low and the cost consumption increased, but there are also certain safety risks. The traditional positioning method of the bending machine is to use a single-sided straight plane fixing fixture for the bending positioning edge to fix the workpiece on the operating table and bend the workpiece. However, in the workpiece bending process, some workpieces with irregular shear edges often appear, and the traditional method cannot be used to position the special-shaped workpiece. Summary of the invention

[0004] The purpose of the present invention is to provide a special-shaped accessory bending tool, aiming to effectively solve the problems in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] The cam is provided with a plurality of holes on the top of the upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of upper and lower surfaces of the plurality of

[0007] As a preferred embodiment of the present invention, a pair of placement grooves are opened on the upper surface of the lower base plate, and feet are fixedly installed at the four corners of the lower surface of the lower base plate by bolts, and anti-slip pads are provided on the contact surfaces between the feet and the table top.

[0008] As a preferred embodiment of the present invention, the bending die comprises a punch and a threaded rod, a flat surface of the punch is welded and fixed to the threaded rod, and the threaded rod is matched with a threaded hole on the lower surface of the connecting block.

[0009] As a preferred embodiment of the present invention, the fixing device includes four groups of cylinder pads, which are respectively located at the four corners of the upper surface of the support plate, a pair of slide rails are arranged on the support plate located on the inner side of the right side plate, a hydraulic clamping cylinder is installed on each of the cylinder pads, a pushing cylinder is arranged between the two groups of cylinder pads located in the width direction of the support plate, a first clamping plate is arranged on the movable end of the pushing cylinder, a pair of square notches are opened on one side of the support plate along the length direction, a T-shaped mounting plate is arranged in each of the square notches, a pair of clamping cylinders are fixedly installed on the lower surface of the support plate by bolts, the movable ends of the clamping cylinders are fixedly connected to the bottom end of the T-shaped mounting plate, and a pair of clamping cylinders are matched with a pair of placement grooves.

[0010] As a preferred embodiment of the present invention, the oil hydraulic clamping cylinder includes a piston rod, the upper end of the piston rod is rotatably connected to a pressure arm through a pin shaft, a connecting block is provided on the oil hydraulic clamping cylinder under the pressure arm, a first rotating shaft is penetrated through the connecting block, a second rotating shaft is penetrated through the middle of the pressure arm, a connecting rod is rotatably connected between the first rotating shaft and the second rotating shaft, and a pressure plate is connected between the pressure arms of the two groups of oil hydraulic clamping cylinders along the width direction of the support plate.

[0011] As a preferred embodiment of the present invention, the bending platform includes a panel, four groups of support plates are connected between the panel and the supporting plate, a pair of modules are rotatably connected between the front and rear support plates, a spring seat is connected between the pair of modules and the supporting plate, and the punch is matched with the pair of modules.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The bending die provided in the present invention is connected to the connecting block by threads, so that punches of different shapes can be easily replaced. Since the forming is performed in one step, the precision of both appearance and size is effectively improved.

[0014] 2. The present invention drives the bending die to press the special-shaped workpiece into the bending platform by driving the air cylinder. In order to prevent the special-shaped workpiece from being displaced due to force during the bending process, fixing devices are installed on both sides of the bending platform to solve the problem that the lower die base of the bending machine is too wide to operate, and fire bending has to be used for manual bending, which leads to high labor intensity for operators, low work efficiency and increased cost consumption, and also certain safety risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the bending mold structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the fixing device of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the oil pressure clamping cylinder of the present invention;

[0020] Figure 5 It is a schematic diagram of the internal structure of the bending platform of the present invention.

[0021] In the figure: 1. lower base plate; 11. guide column; 12. foot pad; 13. anti-skid pad; 14. placement groove; 15. support plate; 16. side plate; 2. upper top plate; 3. drive cylinder; 4. connecting block; 5. bending die; 51. punch; 52. threaded rod; 6. fixing device; 61. cylinder pad; 62. slide rail; 63. push cylinder; 631. first clamping plate; 64. square notch; 65. T-type mounting plate; 66. clamping cylinder; 67. hydraulic clamping cylinder; 671. piston rod; 672. pressure arm; 6721. second rotating shaft; 673. connecting block; 6731. first rotating shaft; 674. connecting rod; 675. pressing plate; 7. bending platform; 71. panel; 72. support plate; 73. module; 74. spring seat. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Example

[0025] See also Figure 1-5 The present invention provides the following technical solutions: a special-shaped accessory bending tool, comprising a lower base plate 1, an upper top plate 2 and a driving cylinder 3, corresponding threaded holes are opened at the four corners of the upper surface of the lower base plate 1 and the four corners of the lower surface of the upper top plate 2, and a guide column 11 is threadedly connected in the threaded hole, the driving cylinder 3 is fixedly connected to the upper surface of the upper top plate 2 through a pin shaft, the movable end of the driving cylinder 3 passes through the upper top plate 2, and a connecting block 4 is fixedly installed on the end that passes through, a threaded hole is opened on the lower surface of the connecting block 4, and a bending mold 5 is threadedly connected in the threaded hole, a supporting plate 15 is arranged on the upper surface of the lower base plate 1, a pair of side plates 16 are arranged on both sides of the supporting plate 15 along the length direction, a fixing device 6 is arranged on the periphery of the upper surface of the supporting plate 15, and a bending platform 7 is arranged in the middle of the upper surface of the supporting plate 15.

[0026] In a specific embodiment of the present invention: the lower bottom plate 1 and the upper top plate 2 are arranged to cooperate with the four groups of guide pillars 11 to play a supporting role. The driving cylinder 3 arranged on the upper top plate 2 drives the bending die 5 to press the special-shaped workpiece into the bending platform 7 through the driving cylinder 3. In order to prevent the special-shaped workpiece from being displaced due to force during the bending process, fixing devices 6 are installed on both sides of the bending platform 7 to solve the problem that the lower die base of the bending machine is too wide to operate, and fire bending has to be used for manual bending, which leads to high labor intensity for operators, not only low work efficiency and increased cost consumption, but also certain safety risks.

[0027] Specifically, a pair of placement grooves 14 are opened on the upper surface of the lower base plate 1, and feet 12 are fixedly installed at the four corners of the lower surface of the lower base plate 1 by bolts, and anti-slip pads 13 are provided on the contact surface between the feet 12 and the table top.

[0028] In a further embodiment: a pair of placement grooves 14 are provided to place the clamping cylinder 66. In order to prevent the device from being corroded by oil on the table top, the provided feet 12 raise the integrity of the device. At the same time, the contact surface between the provided feet 12 and the ground is provided with an anti-slip pad 13. According to actual conditions, the anti-slip pad 13 can be made of rubber material, and the lower surface of the anti-slip pad 13 is in an irregular pattern, which can increase the friction with the table top.

[0029] Specifically, the bending die 5 includes a punch 51 and a threaded rod 52 . A flat surface of the punch 51 is welded and fixed to the threaded rod 52 . The threaded rod 52 is matched with a threaded hole on the lower surface of the connecting block 4 .

[0030] In a further embodiment: the bending die 5 is threadedly connected to the connecting block 4, so as to facilitate replacement of punches 51 of different shapes.

[0031] Specifically, the fixing device 6 includes four groups of cylinder pads 61, which are respectively located at the four corners of the upper surface of the supporting plate 15. A pair of slide rails 62 are arranged on the supporting plate 15 located on the inner side of the right side plate 16. A hydraulic clamping cylinder 67 is installed on each cylinder pad 61. A pushing cylinder 63 is arranged between the two groups of cylinder pads 61 located in the width direction of the supporting plate 15. A first clamping plate 631 is arranged on the movable end of the pushing cylinder 63. A pair of square notches 64 are opened on one side of the supporting plate 15 along the length direction. A T-shaped mounting plate 65 is arranged in each square notch 64. A pair of clamping cylinders 66 are fixedly installed on the lower surface of the supporting plate 15 by bolts. The movable end of the clamping cylinder 66 is fixedly connected to the bottom end of the T-shaped mounting plate 65, and the pair of clamping cylinders 66 are matched with a pair of placement grooves 14.

[0032] In a further embodiment: In order to fix the special-shaped workpiece in the horizontal direction, a pair of pushing cylinders 63 can be used to adjust the position of the pushing cylinder 63 on the slide rail 62 according to the size of the special-shaped workpiece, so that the first clamping plate 631 at the movable end of the pushing cylinder 63 contacts the special-shaped workpiece, and a rubber pad can be set on the contact surface of the first clamping plate 631 to play an anti-slip role. The T-shaped mounting plate 65 is driven by a pair of clamping cylinders 66 to fix the special-shaped workpiece.

[0033] Specifically, the oil pressure cylinder 67 includes a piston rod 671, the upper end of the piston rod 671 is rotatably connected to a pressure arm 672 via a pin shaft, a connecting block 673 is provided on the oil pressure cylinder 67 under the pressure arm 672, a first rotating shaft 6731 is passed through the connecting block 673, a second rotating shaft 6721 passes through the middle of the pressure arm 672, a connecting rod 674 is rotatably connected between the first rotating shaft 6731 and the second rotating shaft 6721, and a pressure plate 675 is connected between the pressure arms 672 of the two groups of oil pressure cylinders 67 along the width direction of the support plate 15.

[0034] In a further embodiment: In order to fix the special-shaped workpiece during the bending process, the piston rod 671 of the oil pressure cylinder 67 rises to drive the pressure arm 672. Under the action of the connecting rod 674, the front end of the pressure arm 672 is tilted, and the pressure plate 675 arranged in front of the piston rod 671 fixes the special-shaped workpiece in the vertical direction.

[0035] Specifically, the bending platform 7 includes a panel 71, four groups of support plates 72 are connected between the panel 71 and the support plate 15, a pair of modules 73 are rotatably connected between the front and rear support plates 72, a spring seat 74 is connected between the pair of modules 73 and the support plate 15, and the punch 51 is matched with the pair of modules 73.

[0036] In a further embodiment: the special-shaped workpiece is placed on the panel 71, and the punch 51 is pressed down by driving the cylinder 3 to press the special-shaped workpiece into a groove formed by a pair of modules 73, and the special-shaped workpiece is bent. The spring seat 74 provided plays a role in resetting the pair of modules 73.

[0037] The working principle and use process of the present invention:

[0038] When in use, place the special-shaped workpiece on the panel 71 and start the pushing cylinder 63. The position of the pushing cylinder 63 can be adjusted on the slide rail 62 according to the size of the special-shaped workpiece, so that the first clamping plate 631 at the movable end of the pushing cylinder 63 contacts the special-shaped workpiece, and a pair of clamping cylinders 66 are started to drive the T-shaped mounting plate 65 to fix the special-shaped workpiece. The punch 51 is pressed down by the driving cylinder 3 to press the special-shaped workpiece into the groove formed by the pair of modules 73, and the special-shaped workpiece is bent. The spring seat 74 provided plays a role in resetting the pair of modules 73.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bending tool for special-shaped accessories, comprising a lower base plate (1), an upper top plate (2) and a driving cylinder (3), characterized in that: Corresponding threaded holes are provided at the four corners of the upper surface of the lower base plate (1) and the four corners of the lower surface of the upper top plate (2), and a guide column (11) is threadedly connected to the threaded hole. The driving cylinder (3) is fixedly connected to the upper surface of the upper top plate (2) through a pin shaft. The movable end of the driving cylinder (3) passes through the upper top plate (2), and a connecting block (4) is fixedly installed on the end that passes through. The lower surface of the connecting block (4) is provided with a threaded hole, and a bending mold (5) is threadedly connected to the threaded hole. The upper surface of the lower base plate (1) is provided with a supporting plate (11). 5), a pair of side plates (16) are arranged on both sides of the supporting plate (15) along the length direction, a fixing device (6) is arranged on the periphery of the upper surface of the supporting plate (15), and a bending platform (7) is arranged in the middle of the upper surface of the supporting plate (15); a pair of placement grooves (14) are opened on the upper surface of the lower base plate (1), and pads (12) are fixedly installed at the four corners of the lower surface of the lower base plate (1) by bolts, and the contact surface between the pads (12) and the table surface is provided with anti-slip pads (13); the bending die (5) includes a punch (51) and a threaded rod, and the The flat surface of the punch (51) is welded and fixed to the threaded rod (52), and the threaded rod (52) is matched with the threaded hole on the lower surface of the connecting block (4); the fixing device (6) includes four groups of cylinder pads (61), and the four groups of cylinder pads (61) are respectively located at four corners of the upper surface of the supporting plate (15). A pair of slide rails (62) are arranged on the supporting plate (15) located on the inner side of the right side plate (16), and each of the cylinder pads is installed with a hydraulic clamping cylinder (67). The two groups of cylinder pads (61) located in the width direction of the supporting plate (15) are A pushing cylinder (63) is arranged between the supporting plate (15), a first clamping plate (631) is arranged on the movable end of the pushing cylinder (63), a pair of square notches (64) are opened on one side along the length direction of the supporting plate (15), a T-shaped mounting plate (65) is arranged in each of the square notches (64), a pair of clamping cylinders (66) are fixedly installed on the lower surface of the supporting plate (15) by bolts, the movable end of the clamping cylinder (66) is fixedly connected to the bottom end of the T-shaped mounting plate (65), and the pair of clamping cylinders (66) are matched with a pair of placement grooves (14); The oil pressure clamping cylinder (67) comprises a piston rod (671), the upper end of the piston rod (671) is rotatably connected to a pressure arm (672) via a pin shaft, a connecting block (673) is provided on the oil pressure clamping cylinder (67) located under the pressure arm (672), a first rotating shaft (6731) is passed through the connecting block (673), a second rotating shaft is passed through the middle of the pressure arm (672), a connecting rod (674) is rotatably connected between the first rotating shaft (6731) and the second rotating shaft (6721), and a pressure plate (675) is connected between the pressure arms (672) of the two groups of oil pressure clamping cylinders (67) along the width direction of the support plate (15); The bending platform (7) comprises a panel (71), four groups of support plates (72) are connected between the panel (71) and the support plate (15), a pair of modules (73) are rotatably connected between the front and rear support plates (72), a spring seat (74) is connected between the pair of modules (73) and the support plate (15), and the punch (51) is matched with the pair of modules (73); When in use, place the special-shaped accessory on the panel and start the pushing cylinder. The position of the pushing cylinder can be adjusted on the slide rail according to the size of the special-shaped accessory so that the first clamping plate at the movable end of the pushing cylinder contacts the special-shaped accessory. Start a pair of clamping cylinders to drive the T-shaped mounting plate to fix the special-shaped accessory. The driving cylinder drives the punch to press down to press the special-shaped accessory into the groove formed by a pair of modules. The special-shaped accessory is bent, and the provided spring seat plays a role in resetting the module.

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