Elastic strip automatic production forming tool

Abstract

The application discloses a kind of e elastic strip automation production forming tool, including one sequence, two sequences, three sequences tool, wherein: one sequence tool includes the upper die plate, upper die frame and upper die connected in sequence, left lower die seat and right lower die seat are set in the both ends of lower die plate, lower die roller is set on left lower die seat and right lower die seat, and material lifting mechanism is installed in the middle of lower die plate;Two sequence tool includes the upper die plate, upper die frame, upper die and hanging material block connected in sequence;Roller seat, positioning seat and support are provided on lower die plate, roller is provided on roller seat, blocking block and air cylinder are provided on support, and flexible pushing device is fixed on the front end of piston rod of air cylinder;Three sequence tool includes the upper die plate, upper die gasket and upper die frame connected in sequence, middle limb upper die, toe end upper die and heel end upper die are provided on upper die frame;Toe end lower die, middle limb lower die, heel end lower die, limiting seat and large arch support are provided on lower die gasket.

Description

TECHNICAL FIELD

[0001] The present application relates to an e spring strip automatic production forming tool. BACKGROUND

[0002] The e spring strip used in China's railways at present is hot-pressed into shape by Φ18\Φ20 spring steel, quenched by residual heat, tempered by a net belt type continuous tempering furnace, and then surface corrosion is carried out. The appearance size and quality of the spring strip are entirely guaranteed by the tooling mold.

[0003] The existing tooling mold is manually operated, the labor intensity of the staff is large, the working environment is poor (high temperature + dust), the per capita productivity is low, and at least 5 operators are required for the existing manual production line, therefore, the existing tooling mold cannot adapt to robot automatic production. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the present application provides an e spring strip automatic production forming tool.

[0005] The technical scheme adopted by the present application to solve its technical problems is: an e spring strip automatic production forming tool, comprising first, second and third sequence toolings, wherein:

[0006] The first sequence tooling comprises an upper mold plate, an upper mold frame and an upper mold connected in sequence, left and right lower mold seats are arranged at both ends of a lower mold plate, lower mold rollers are arranged on the left and right lower mold seats, left and right positioning seats are arranged outside both ends of the lower mold plate, a jack screw is arranged on each of the left and right positioning seats, and a material lifting rod is further arranged on the right positioning seat; a material lifting mechanism is installed in the middle of the lower mold plate;

[0007] The second sequence tooling comprises an upper mold plate, an upper mold frame, an upper mold and a material hanging block connected in sequence; a roller seat, a positioning seat and a support are arranged on the lower mold plate, rollers are arranged on the roller seat, a material lifting rod and a lifting rod are arranged on the positioning seat, a material blocking block and a cylinder are arranged on the support, and a flexible material pushing device is fixed to the front end of the piston rod of the cylinder;

[0008] The third sequence tooling comprises an upper mold plate, an upper mold gasket and an upper mold frame connected in sequence, a middle limb upper mold, a toe end upper mold and a heel end upper mold are arranged on the upper mold frame, a jack screw is arranged on both sides of the toe end upper mold and the heel end upper mold of the upper mold frame, and a product marking head is arranged in the middle of the toe end upper mold; a gasket and a lower mold gasket are arranged in sequence above the lower mold plate, a toe end lower mold, a middle limb lower mold, a heel end lower mold, a limiting seat and a large arch support are arranged on the lower mold gasket, limiting blocks are arranged on the limiting seat, located on both sides of the heel end upper mold, and a jack screw is arranged on the gasket.

[0009] Compared with the prior art, the present application has the following positive effects:

[0010] The forming tool of the application can realize the automatic production of e elastic strip by only 2 operators, greatly improving the product quality and production efficiency of e elastic strip. The specific performance is as follows:

[0011] (1) The first sequence tool of the application:

[0012] The upper die plate is connected with the upper die frame by bolts, the upper die is embedded with hard alloy which contacts with the workpiece, and the middle of the lower die plate is provided with a material lifting mechanism. One end of all the roller pins is processed into a flat shape, and the base body has a groove, thereby reducing the wear of the roller seat base body.

[0013] (2) The second sequence tool of the application:

[0014] The upper die frame is provided with a material hanging device, and the lower die has a flexible material pushing mechanism at one end.

[0015] (3) The third sequence tool of the application:

[0016] The lower die is a split type, which can adapt to the production of various types of elastic strips, and the upper die is designed as a split type, which is more convenient to adjust the size. BRIEF DESCRIPTION OF DRAWINGS

[0017] The application will be illustrated by examples and with reference to the accompanying drawings, in which:

[0018] Figure 1 is a front view of the first sequence tool;

[0019] Figure 2 is a side view of the first sequence tool;

[0020] Figure 3 is a top view of the first sequence tool;

[0021] Figure 4 is a schematic view of the first sequence press reaching the lower dead point;

[0022] Figure 5 is a front view of the second sequence tool;

[0023] Figure 6 is a side view of the second sequence tool;

[0024] Figure 7 is a top view of the second sequence tool;

[0025] Figure 8 is a front view of the third sequence tool;

[0026] Figure 9 is a top view of the third sequence tool;

[0027] Figure 10 is a side view of the third sequence tool;

[0028] Figure 11is the front view of the e-elastic strip product after final forming;

[0029] Figure 12 is the side view of the e-elastic strip product after final forming;

[0030] Figure 13 is the top view of the e-elastic strip product after final forming. DETAILED DESCRIPTION

[0031] An e-elastic strip automatic production forming tool includes a first sequence, a second sequence, and a third sequence, wherein:

[0032] The structure of the first sequence tool is shown in Figures 1 to 4 The first sequence tool includes raw materials 1, a lower die plate 2, a top pin 3, a locking nut 4, a left positioning seat 5, a left lower die seat 6, a lower die roller 7, an upper die frame 8, a hexagonal bolt 9, an upper die plate 10, a right lower die seat 11, a roller pin 12, a right positioning seat 13, a locking nut 14, a material lifting rod 15, a hexagonal bolt 16, an upper die 17, a hexagonal bolt 18, a hexagonal bolt 19, a material lifting sliding shaft 20, a material lifting guide sleeve 21, a spiral compression spring 22, a pull rod 23, a locking nut 24, a first sequence forming workpiece 25, and the like, wherein:

[0033] The upper die frame 8 is fixed on the upper die plate 10 by the hexagonal bolt 9. The upper die 17 is fixed on the upper die frame 8 by the hexagonal bolt 18. The lower die roller 7 is fixed on the left lower die seat 6 and the right lower die seat 11 by the roller pin 12, wherein one lower die roller is arranged on the left lower die seat 6, and two lower die rollers are arranged on the right lower die seat 11. A groove with a radius of R is formed on the lower die roller 7. The left lower die seat 6 and the right lower die seat 11 are fixed on both ends of the lower die plate 2 with the groove by the hexagonal bolt 16, and can be adjusted left and right. The left positioning seat 5 and the right positioning seat 13 are arranged on the outer sides of both ends of the lower die plate 2, and the top pin 3 with the locking nut 4 is arranged on both the left and right positioning seats. The material lifting rod 15 with the locking nut 14 is further arranged above the right positioning seat 13. A material lifting mechanism is installed in the middle of the lower die plate 2, which includes the material lifting guide sleeve 21 fixed on the lower die plate 2 by the hexagonal bolt 19. The material lifting sliding shaft 20, the spiral compression spring 22, and the pull rod 23 are arranged in the material lifting guide sleeve 21. A groove is formed on the upper end of the material lifting sliding shaft 20 to cooperate with the groove on the lower die roller 7 to jointly limit the swing of the workpiece. The locking nut 24 is arranged on the pull rod 23 to adjust the material lifting position of the material lifting sliding shaft 20.

[0034] The structure of the second sequence tool is shown in Figures 5 to 7As shown, it includes: 26 socket head cap screws, 27 hanging block, 28 upper mold base, 29 socket head cap screws, 30 upper template, 31 socket head cap screws, 32 second-stage forming workpiece, 33 positioning seat, 34 ejector rod, 35 roller, 36 locking nut, 37 roller pin, 38 ejector rod, 39 socket head cap screws, 40 lower template, 41 roller seat, 42 stop block, 43 support, 44 cylinder, 45 piston rod, 46 locking nut, 47 connecting sleeve, 48 spiral compression spring, 49 sliding sleeve, 50 end cap, 51 upper mold, 52 socket head cap screws, etc., among which:

[0035] The upper mold frame 28 is fastened to the middle of the upper template 30 by hexagon socket head cap bolts 29. The upper template 30 is connected to the secondary press by hexagon socket head cap bolts 31. The upper mold 51 is fixed to the lower end of the upper mold frame 28 by hexagon socket head cap bolts 52. The material hanging block 27 is fastened to the upper mold 51 by hexagon socket head cap bolts 26 and can be finely adjusted up and down in the grooved upper mold 51. The roller seats 41 are symmetrically fixed to both ends of the grooved lower template 40 by hexagon socket head cap bolts 39 and can be adjusted left and right. The rollers 35 are set on the roller seats 41 by roller pins 37. Positioning seats 33 and supports 43 are respectively set on the outer sides of both ends of the lower template 40. The positioning seats 33 are equipped with a push rod 34 with a locking nut 36 and a push rod 38. The rollers 35 are provided with grooves of radius R. A stop block 42 is connected to the support 43 by an internal hex bolt. The cylinder 44 is connected to the support 43 by an internal hex bolt 46. A soft pushing device with a helical compression spring 48 is fixed to the front end of the cylinder piston rod 45. The soft pushing device includes a connecting sleeve 47, a helical compression spring 48, a sliding sleeve 49, and an end cap 50. The connecting sleeve 47 is connected to the front end of the cylinder piston rod 45. A sliding sleeve 49 is provided outside the connecting sleeve 47. A helical compression spring 48 is provided inside the sliding sleeve 49. An end cap 50 is provided on the sliding sleeve 49.

[0036] The structure of the three-stage tooling is as follows: Figures 8 to 10 As shown, it includes: lower template 53, pad 54, lower mold pad 55, toe lower mold 56, middle limb lower mold 57, toe upper mold 58, letter 59, set screw 60, set rod 61, middle limb upper mold 62, upper mold frame 63, pad block 64, upper mold pad 65, upper template 66, socket head cap screw 67, pad block 68, spiral compression spring 69, heel upper mold 70, heel lower mold 71, set screw 72, lock nut 73, socket head cap screw 74, socket head cap screw 75, socket head cap screw 76, socket head cap screw 77, limit block 78, socket head cap screw 79, limit seat 80, set screw 81, lock nut 82, wedge block 83, socket head cap screw 84, large arch support 85, socket head cap screw 86, pad block 87, etc., among which:

[0037] The upper die plate 66 is connected with the three sequence press through the inner hexagonal bolt 67, and the upper die backing plate 65 is arranged below the upper die plate 66. The upper die frame 63 is fixed on the upper die backing plate 65 through the inner hexagonal bolt 67. The middle limb upper die 62 is fixed in the middle of the upper die frame 63 through the inner hexagonal bolt 84. The helical compression spring 69 and the ejector pin 61 are arranged in the middle limb upper die 62. The toe end upper die 58 and the heel end upper die 70 are respectively fixed in the two sides of the upper die frame 63 with the slot through the ejector pin 81 with the locking nut 82. The toe end upper die 58 and the heel end upper die 70 can be adjusted left and right. The wedge block 83 is arranged in the front end of the ejector pin 81. The gasket 64 and the gasket 68 are respectively arranged between the toe end upper die 58 and the heel end upper die 70 and the upper die frame 63. The product marking head 59 is fixed in the middle of the toe end upper die 58 through the ejector pin 60. The gasket 54 is arranged above the lower die plate 53. The lower die backing plate 55 is fixed on the gasket 54 through the inner hexagonal bolt 74. The toe end lower die 56, the middle limb lower die 57, the heel end lower die 71, the limiting seat 80 and the large arch support 85 are respectively fixed on the lower die backing plate 55 through the inner hexagonal bolt 75, the inner hexagonal bolt 76, the inner hexagonal bolt 77, the inner hexagonal bolt 79 and the inner hexagonal bolt 86. The limiting block 78 is arranged on the limiting seat 80 and located on the two sides of the heel end upper die 70. The gasket 87 is also arranged in the middle of the lower die backing plate 55. The ejector pin 72 with the locking nut 73 is arranged on the gasket 54, which is used for limiting the large arch support 85. The heel end lower die 71 is fixed on the lower die backing plate 55 through the inner hexagonal bolt 77 and can be adjusted slightly forward and backward. The toe end lower die 56 is inlaid with hard alloy.

[0038] Specific working principle:

[0039] The one sequence machine hand places the raw material 1 heated to the process requirement through the medium frequency heating on the groove of the lower die roller 7 stably, and then retreats to the safe position. The one sequence press receives the signal, starts to move downward, the workpiece contacts the material retreat slide shaft 20 to compress the helical compression spring 22, until the press reaches the lower dead point. At this time, the raw material 1 is processed into the one sequence forming workpiece 25. Then the press moves upward, the helical compression spring 22 pushes the material retreat slide shaft 20 to drive the workpiece 25 to move upward. The material retreat slide shaft 20 is adjusted through the locking nut 24 to adjust the material retreat position. The groove of the lower die roller 7 and the groove of the material retreat slide shaft 20 make the workpiece 25 be placed in the same position stably every time. Then the press returns to the upper dead point.

[0040] The second sequence machine hand receives the signal, and clamps the first sequence formed workpiece 25 to the second sequence, and then retreats to the safe position. The second sequence press receives the signal and moves downward. Meanwhile, the cylinder 44 receives the signal, and the piston rod 45 pushes the helical compression spring 48 to drive the pushing end cover 50 to move rightward, and pushes the workpiece 25 to move rightward. The right end surface of the workpiece 25 contacts the material lifting rod 34. By adjusting the position of the material lifting rod 34, the size of the chamfer of the product can be adjusted. When the second sequence press reaches the lower dead point, the first sequence formed workpiece 25 is processed into the second sequence formed workpiece 32. At this time, the press sends a signal to the cylinder 44, and the piston rod 45 retreats to the left. Then the press moves upward, and the second sequence formed workpiece 32 is clamped on the upper die through the hanging block 27. By adjusting the position of the material blocking block 42, the inclination angle of the first sequence formed workpiece 25 after being placed can be changed, so that the workpiece can be clamped on the upper die after being formed, and no damage occurs. By adjusting the left and right positions of the roller seat 41, the toe end and the heel end of the product are parallel, and the second sequence formed workpiece 32 is also more stable on the upper die. Then the second sequence press moves to the upper dead point.

[0041] The third sequence machine hand receives the signal, clamps the second sequence formed workpiece 32 to the third sequence, and contacts the limit block 78 at the vertex of the outer circular arc of the middle limb and the heel end. The middle limb is placed in the groove of the middle limb lower die 57. When the third sequence machine hand retreats to the safe position, the third sequence press moves downward. The heel end upper die 70, the middle limb upper die 62 and the toe end upper die 58 contact the second sequence formed workpiece 32. Under the action of the heel end lower die 71, the toe end lower die 56 and the large arch support 85, the second sequence formed workpiece 32 is formed to obtain the final formed e elastic strip product as shown in FIG. 8. Figures 11 to 13 By adjusting the front and back positions of the large arch support 85, the height dimension E of the large arch can be adjusted. By adjusting the left and right positions of the toe end upper die 58, the flattened length L of the toe end can be adjusted. By adjusting the size of the pad block 64 on the upper end surface of the toe end upper die 58 and the pad block 87 under the toe end lower die 56, the width M and the size J of the toe end can be changed. By adjusting the left and right positions of the heel end upper die 70, the minimum pressing point size B of the heel end can be adjusted. By adjusting the thickness dimension of the pad block 68 on the upper end surface of the heel end upper die 70, the small arch height dimension H can be changed. The toe end upper die 58 is provided with a character head 59, on which the manufacturer's logo and the production batch number are engraved. By replacing the character head, the logo can be conveniently printed. Technical requirement: 10,000 pieces per production batch. The third sequence press reaches the lower dead point to form the product. The third sequence press moves upward, and the helical compression spring 69 in the middle limb upper die 62 pushes the ejector rod 61 to place the formed product on the lower die. Finally, the third sequence press reaches the upper dead point.

[0042] The fourth sequence machine hand receives the signal to clamp the formed product. Meanwhile, the workpiece that meets the process requirements is placed in the quenching tank through the infrared temperature detector. When the product moves to the safe position, the third sequence machine hand starts to clamp the second sequence formed workpiece 32 to the third sequence.

Claims

1. An e-spring strip automated production forming tool, characterized in that: The application relates to a three-step tooling device for manufacturing shoes, which comprises a first-step tooling device, a second-step tooling device and a third-step tooling device. The first-step tooling device comprises a top die plate, a top die frame and a top die which are sequentially connected; a left lower die base and a right lower die base are arranged at the two ends of a lower die plate, lower die rollers are arranged on the left lower die base and the right lower die base, a left positioning base and a right positioning base are arranged outside the two ends of the lower die plate, a jack screw is arranged on the left and right positioning bases, and a material lifting rod is arranged on the right positioning base; a material lifting mechanism is arranged on the middle of the lower die plate. The second-step tooling device comprises a top die plate, a top die frame, a top die and a material hanging block which are sequentially connected; a roller base, a positioning base and a support are arranged on the lower die plate, rollers are arranged on the roller base, a material lifting rod and a jack rod are arranged on the positioning base, a material blocking block and a pneumatic cylinder are arranged on the support, and a flexible material pushing device is fixed to the front end of the piston rod of the pneumatic cylinder. The third-step tooling device comprises a top die plate, a top die cushion plate and a top die frame which are sequentially connected; a middle limb top die, a toe end top die and a heel end top die are arranged on the top die frame, a jack screw is arranged on the two sides of the toe end top die and the heel end top die of the top die frame, and the toe end top die and the heel end top die are adjusted leftward and rightward, a product marking head is arranged on the middle of the toe end top die; a cushion plate and a lower die cushion plate are sequentially arranged above the lower die plate, a toe end lower die, a middle limb lower die, a heel end lower die, a limiting base and a large arch support are arranged on the lower die cushion plate, limiting blocks are arranged on the limiting base and located on the two sides of the heel end top die, a jack screw is arranged on the cushion plate and used for limiting the large arch support; cushion blocks are arranged between the top die frame and the toe end top die and between the top die frame and the heel end top die of the third-step tooling device; cushion blocks are further arranged in the middle of the lower die cushion plate; the large arch height dimension E is adjusted by adjusting the front and back positions of the large arch support; the toe end flattening length L is adjusted by adjusting the left and right positions of the toe end top die; the toe end width M and the dimension J are changed by adjusting the sizes of the cushion blocks on the upper end face of the toe end top die and under the toe end lower die; the heel end lowest pressing point dimension B is adjusted by adjusting the left and right positions of the heel end top die; the small arch height dimension H is changed by adjusting the thickness dimension of the cushion block on the upper end face of the heel end top die.

2. The e-spring strip automated production forming tooling of claim 1, wherein: The material lifting mechanism of the first-step tooling device comprises a material lifting guide sleeve fixed on the lower die plate through an inner hexagonal bolt, a material lifting sliding shaft, a spiral compression spring and a pull rod arranged in the material lifting guide sleeve, and a locking nut arranged on the pull rod.

3. The e-spring strip automated production forming tooling of claim 2, wherein: A groove is formed on the upper end of the material lifting sliding shaft of the first-step tooling device.

4. The e-spring strip automated production forming tooling of claim 1, wherein: A groove is formed on the lower die roller of the first-step tooling device.

5. The e-spring strip automated production forming tooling of claim 1, wherein: A groove is formed on the top die of the second-step tooling device and used for arranging the material hanging block.

6. The e-spring strip automated production forming tooling of claim 1, wherein: The flexible material pushing device of the second-step tooling device comprises a connecting sleeve, a spiral compression spring, a sliding sleeve and an end cover, the connecting sleeve is connected with the front end of the piston rod of the pneumatic cylinder, the sliding sleeve is arranged outside the connecting sleeve, the spiral compression spring is arranged in the sliding sleeve, and the end cover is arranged on the sliding sleeve.

7. The e-spring strip automated production forming tooling of claim 1, wherein: A groove is formed on the roller of the second-step tooling device.

8. The e-spring strip automated production forming tooling of claim 1, wherein: A wedge block is arranged on the front end of the jack screw of the third-step tooling device.

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