High-precision bending forming die for elastic piece

Abstract

The utility model belongs to the technical field of forming dies, and discloses an elastic piece high-precision bending forming die which comprises a lower die plate and a second replacement block, a bending groove is formed in the outer wall of the second replacement block, a lower die is arranged at the top of the lower die plate, an air cylinder is arranged at the top of the lower die plate, and an upper die plate is arranged at the top of the air cylinder. An upper die is arranged at the bottom of the upper die plate. Through the arrangement of the lower die, the air cylinder, the upper die, the first replacement block, the bending plates, the second replacement block and the bending grooves, the multiple bending plates and the multiple bending grooves are arranged, the multiple bending plates and the multiple bending grooves are matched in shape, and then a rotating rod is rotated so that the bending plates in other shapes can be located outside the upper die groove; the second replacement block is adjusted according to the principle of adjusting the first replacement block, the bending groove matched with the bending plate in shape is adjusted to be under the bending plate, and the shape of the formed elastic piece can be replaced.

Description

Technical Field

[0001] The present application relates to the technical field of forming dies, and more specifically, to a high-precision bending forming die for springs. Background Art

[0002] As we all know, shrapnel is a workpiece used in mechanical buffer and shockproof devices and relay delay devices. Most shrapnel are irregular shapes with bending arcs. Therefore, high-precision bending forming molds are used in the production of shrapnel. The principle of the mold is to open a mold groove and bend the original shrapnel sheet through great pressure.

[0003] However, most of the existing high-precision bending molds for shrapnel on the market cannot change the shape of the shrapnel original plate bent and formed, and different molds need to be replaced when shrapnel of different shapes needs to be bent and formed, which greatly increases the cost of the mold equipment. Utility Model Content

[0004] In order to solve the above problems, the present application provides a high-precision bending forming die for springs.

[0005] The high-precision bending forming die for springs provided in this application adopts the following technical solution:

[0006] A high-precision bending forming mold for a spring piece comprises a lower template and a second replacement block, wherein the outer wall of the second replacement block is provided with a bending groove, the top of the lower template is provided with a lower mold, the top of the lower template is provided with a cylinder, the top of the cylinder is provided with an upper template, the bottom of the upper template is provided with an upper mold, the front of the upper mold is provided with an upper mold groove, and the inner bottom wall of the upper mold groove is provided with a channel.

[0007] The inner wall of the upper mold groove is inlaid with a bearing, the inner ring of the bearing is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly sleeved with a first replacement block, the outer wall of the first replacement block is fixedly connected to a bending plate, the outer wall of the rotating rod is provided with a groove, the inner wall of the groove is fixedly connected to a spring, one end of the spring is fixedly connected to a limiting block, and the top of the lower mold is provided with a lower mold groove.

[0008] Furthermore, a limit rod is fixedly connected to the top of the lower template, and the limit rod is slidably sleeved with the upper template.

[0009] Through the above technical solution, the limiting rod can connect and support the upper template and the lower template.

[0010] Furthermore, the bending plate is slidably connected to the channel, and the limiting block is a "ball" shaped structure.

[0011] Through the above technical solution, the number of the bending plates is four, which are respectively arranged on the four sides of the first replacement block.

[0012] Furthermore, a through groove is provided on the inner side wall of the upper die groove, and the rotating rod is rotatably sleeved in the through groove.

[0013] Through the above technical solution, the rotation of the first replacement block can be controlled by the outside of the upper mold.

[0014] Furthermore, the outer wall of the limit block is slidably connected to the inner wall of the groove, and one end of the rotating rod is fixedly connected to a rotating handle.

[0015] Through the above technical solution, the limit block will move toward the inside of the groove when encountering resistance, so that the first replacement block can be rotated.

[0016] Furthermore, a clamping slot is provided on the inner wall of the through slot, and the limiting block is movably engaged with the clamping slot.

[0017] Through the above technical solution, the first replacement block will not rotate automatically, thereby improving the stability of the device.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] (1) By setting up a lower mold, a cylinder, an upper mold, a first replacement block, a bending plate, a second replacement block and a bending groove, since there are multiple bending plates and bending grooves, and the shapes of the multiple bending plates and bending grooves are all compatible, the rotating rod is rotated so that the bending plates of other shapes are located outside the upper mold groove, and the second replacement block is adjusted by adjusting the principle of the first replacement block, and the bending groove that is compatible with the shape of the bending plate is adjusted to the bottom of the bending plate, so that the shape of the formed spring sheet can be replaced. The device can change the shape of the spring sheet original plate bent, and then there is no need to replace different mold equipment when bending spring sheets of different shapes, thereby greatly reducing the cost of the mold equipment.

[0020] (2) By setting the rotating rod, the card slot, the groove, the spring and the limit block, the rotating rod is rotated, and the limit block will move toward the inside of the groove due to the resistance. After the bending plate of the required shape is rotated to the outside of the channel, the limit block is engaged with the card slot due to the elastic force of the spring, and the first replacement block will not rotate automatically, thereby improving the stability of the device, thereby further meeting the use requirements of the device, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a high-precision bending forming die for spring pieces;

[0022] Figure 2 It is a front cross-sectional view of a high-precision bending forming die for a spring piece;

[0023] Figure 3It is a front cross-sectional view of the rotating rod in this application;

[0024] Figure 4 for Figure 3 A magnified view of the structure in the middle.

[0025] Description of the numbers in the figure:

[0026] 1. Lower template; 2. Lower mold; 3. Cylinder; 4. Upper template; 5. Limit rod; 6. Upper mold; 7. Upper mold groove; 8. Bearing; 9. Rotating rod; 10. Rotating handle; 11. First replacement block; 12. Bending plate; 13. Channel; 14. Through groove; 15. Slot; 16. Recess; 17. Spring; 18. Limit block; 19. Lower mold groove; 20. Second replacement block; 21. Bending groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The following is combined with Figure 1-4 This application is described in further detail.

[0031] The present application embodiment discloses a high-precision bending forming die for a spring piece. Figure 1-4, including a lower template 1 and a second replacement block 20, the outer wall of the second replacement block 20 is provided with a bending groove 21, the top of the lower template 1 is provided with a lower mold 2, the top of the lower template 1 is provided with a cylinder 3, the top of the cylinder 3 is provided with an upper template 4, the bottom of the upper template 4 is provided with an upper mold 6, the front of the upper mold 6 is provided with an upper mold groove 7, and the inner bottom wall of the upper mold groove 7 is provided with a channel 13.

[0032] The inner wall of the upper die groove 7 is inlaid with a bearing 8, the inner ring of the bearing 8 is fixedly connected to a rotating rod 9, the outer wall of the rotating rod 9 is fixedly sleeved with a first replacement block 11, the outer wall of the first replacement block 11 is fixedly connected to a bending plate 12, the number of the bending plates 12 and the bending grooves 21 is multiple, the shapes of the multiple bending plates 12 and the bending grooves 21 are all adapted, the outer wall of the rotating rod 9 is provided with a groove 16, the inner wall of the groove 16 is fixedly connected to a spring 17, one end of the spring 17 is fixedly connected to a limiting block 18, and the top of the lower die 2 is opened. A lower die groove 19 is provided, and then the rotating rod 9 is rotated so that the bending plate 12 of other shapes is located outside the upper die groove 7. The second replacement block 20 is adjusted by adjusting the principle of the first replacement block 11, and the bending groove 21 adapted to the shape of the bending plate 12 is adjusted directly below the bending plate 12, so that the shape of the formed spring piece can be replaced. The device can change the shape of the spring piece original plate bent, and then there is no need to replace different mold equipment when bending spring pieces of different shapes, thereby greatly reducing the cost of the mold equipment.

[0033] In this embodiment, the top of the lower template 1 is fixedly connected to a limiting rod 5 , and the limiting rod 5 is slidably sleeved with the upper template 4 , and the limiting rod 5 can connect and support the upper template 4 and the lower template 1 .

[0034] In this embodiment, the bending plate 12 is slidably connected to the channel 13, and the limiting block 18 is a "spherical" structure. There are four bending plates 12, which are respectively arranged on the four sides of the first replacement block 11.

[0035] In this embodiment, a through slot 14 is formed on the inner side wall of the upper mold groove 7 , and the rotating rod 9 is rotatably sleeved with the through slot 14 , so that the first replacement block 11 can be rotated by controlling the outside of the upper mold 6 .

[0036] In this embodiment, the outer wall of the limit block 18 is slidably connected to the inner wall of the groove 16, and one end of the rotating rod 9 is fixedly connected to the rotating handle 10. The limit block 18 will move toward the inside of the groove 16 when encountering resistance, so that the first replacement block 11 can be rotated.

[0037] In this embodiment, a clamping groove 15 is formed on the inner wall of the through groove 14, and the limiting block 18 is movably engaged with the clamping groove 15, so that the first replacement block 11 does not rotate automatically, thereby improving the stability of the device.

[0038] The implementation principle of the high-precision bending forming die for a spring piece in the embodiment of the present application is as follows: first, the spring piece original plate is placed on the bending groove 21, the cylinder 3 drives the upper die 6 to move downward, and the bending plate 12 punches the original plate into the shape of the bending groove 21 to achieve the spring piece required for forming;

[0039] Secondly, the rotating rod 9 is rotated, and the limit block 18 is moved toward the inside of the groove 16 due to resistance, and then the first replacement block 11 can be rotated, so that the bending plate 12 of other shapes is located outside the upper die groove 7. After the bending plate 12 of the required shape is rotated to the outside of the channel 13, the limit block 18 is engaged with the card slot 15 by the elastic force of the spring 17, and the first replacement block 11 will not rotate automatically;

[0040] Finally, since there are two rotating rods 9, the other rotating rod 9 is fixed on the second replacement block 20. The second replacement block 20 is adjusted by adjusting the principle of the first replacement block 11. The bending groove 21 that matches the shape of the bending plate 12 is adjusted to the bottom of the bending plate 12, so that the shape of the formed spring piece can be replaced.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision bending mold for a spring piece, comprising a lower mold plate (1) and a second replacement block (20), characterized in that: The outer wall of the second replacement block (20) is provided with a bending groove (21), the top of the lower template (1) is provided with a lower mold (2), the top of the lower template (1) is provided with a cylinder (3), the top of the cylinder (3) is provided with an upper template (4), the bottom of the upper template (4) is provided with an upper mold (6), the front of the upper mold (6) is provided with an upper mold groove (7), and the inner bottom wall of the upper mold groove (7) is provided with a channel (13); The inner wall of the upper die groove (7) is inlaid with a bearing (8), the inner ring of the bearing (8) is fixedly connected to a rotating rod (9), the outer wall of the rotating rod (9) is fixedly sleeved with a first replacement block (11), the outer wall of the first replacement block (11) is fixedly connected to a bending plate (12), the outer wall of the rotating rod (9) is provided with a groove (16), the inner wall of the groove (16) is fixedly connected to a spring (17), one end of the spring (17) is fixedly connected to a limiting block (18), and the top of the lower die (2) is provided with a lower die groove (19).

2. A high-precision bending mold for springs according to claim 1, characterized in that: The top of the lower template (1) is fixedly connected to a limiting rod (5), and the limiting rod (5) is slidably sleeved with the upper template (4).

3. A high-precision bending mold for springs according to claim 2, characterized in that: The bending plate (12) is slidably sleeved with the channel (13), and the limiting block (18) is a "spherical" structure.

4. A high-precision bending mold for springs according to claim 3, characterized in that: A through groove (14) is provided on the inner side wall of the upper die groove (7), and the rotating rod (9) is rotatably sleeved with the through groove (14).

5. A high-precision bending mold for springs according to claim 4, characterized in that: The outer wall of the limit block (18) is slidably connected to the inner wall of the groove (16), and one end of the rotating rod (9) is fixedly connected to a rotating handle (10).

6. A high-precision bending mold for spring pieces according to claim 5, characterized in that: The inner wall of the through slot (14) is provided with a clamping slot (15), and the limiting block (18) is movably clamped with the clamping slot (15).

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