A bending angle adjusting device

Abstract

This utility model provides a bending angle adjustment device, comprising: a first fixed part and a movable part, the fixed part being disposed on a forming machine, and the movable part being connected to the fixed part via several guide columns; a second fixed part being disposed on the forming machine, and a pressure block being disposed on the second fixed part; a driving block, one end of which is disposed on the first fixed part, and the other end passing through an operating hole on the movable part; a bending mechanism for rotating under the action of the driving block, disposed within the movable part; in use, the bending mechanism contacts the bending position under the push of the driving block, and pushes the bending position into contact with the pressure block; the bending angle adjustment device proposed in this utility model does not directly impact the bending part, reducing the probability of scratches on the bending part; in addition, since the bending mechanism does not directly impact the bending part, lateral force can be eliminated, thereby reducing the probability of cracks at the bending position and further reducing the scrap rate.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a bending angle adjustment device. Background Technology

[0002] In daily production, some metal parts need to be bent and then cut to obtain components such as connector terminals. In actual production, the strip needs to be stamped and the stamped part of the strip needs to be bent. However, due to different usage requirements, in some fields, it is necessary to ensure that the bent part will not deform under its own elastic deformation, so a secondary bending operation is required to meet the usage requirements.

[0003] In existing technology, a slider is used to perform secondary bending on the stamped part. The slider moves linearly under the drive of the mold and comes into instantaneous contact with the surface of the bent part during bending, causing an impact on the surface of the bent part, which is prone to scratches. In addition, a large lateral force is generated when bending through the slider. This can cause cracks at the bending position, especially for electroplated layers, which are prone to cracking, resulting in an increased scrap rate. Utility Model Content

[0004] The purpose of this utility model is to provide a bending angle adjustment device that can solve the above-mentioned technical problems. This utility model provides a bending angle adjustment device, comprising: A first fixed part and a movable part are provided on the molding machine. The first fixed part is provided on the molding machine and the movable part is connected to the first fixed part through several guide columns. The second fixing part is provided on the molding machine; and the second fixing part is provided with a pressure block. The drive block has one end set on the first fixed part and the other end passing through the operating hole on the movable part; A bending mechanism for rotating under the action of a drive block is installed in the movable part; in use, it contacts the bending position under the push of the drive block and pushes the bending position into contact with the pressure block.

[0005] As a further technical solution, the bending mechanism includes: The bending seat is located inside the movable part; The bending block is rotatably mounted on the bending seat.

[0006] As a further technical solution, the bending block includes: Blocks and bending heads; The block is connected to the bending seat via a rotating shaft; the bending head is located at one end of the block.

[0007] As a further technical solution, a reset hole is provided on the block, and a reset body is provided inside the reset hole.

[0008] Preferably, the other end of the block is provided with an arc-shaped surface.

[0009] Preferably, an inclined surface is provided on the other end of the drive block.

[0010] As a further technical solution, several positioning pins are also inserted inside the bending seat.

[0011] As a further technical solution, it also includes: several limiting blocks, which are disposed on the second fixing part.

[0012] As a further technical solution, a limiting groove is provided on the limiting block; in the conveying state, the material belt is placed in the limiting groove.

[0013] As a further technical solution, the movable part is provided with several receiving holes, and the several receiving holes are arranged opposite to several limiting blocks.

[0014] The technical solution of this utility model utilizes a driving block mounted on the first fixed part and a bending mechanism mounted on the movable part. During mold closing, the movable part contacts the second fixed part, and the bending mechanism is positioned at the pressure block. As the mold closing action continues, the driving block contacts the bending mechanism and pushes it to rotate. During the rotation of the bending mechanism, it contacts the bent portion on the strip, allowing the bent portion to undergo a secondary bending operation under the support of the pressure block. Compared with the prior art, the technical solution of this utility model does not directly impact the bent portion, reducing the probability of scratches on the bent portion. In addition, since the bending mechanism does not directly impact the bent portion, lateral forces are eliminated, thereby reducing the probability of cracks at the bending position and further reducing the scrap rate. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a perspective view of a bending angle adjustment device according to the present invention; Figure 2 This is a schematic diagram of the structure of a bending angle adjustment device according to the present invention; Figure 3 for Figure 2 A sectional view of section AA; Figure 4 This is an enlarged perspective view of the bending mechanism in this utility model; Figure 5 This is an enlarged structural schematic diagram of the bending mechanism in this utility model; Figure 6 for Figure 5 A sectional view of section BB; Figure 7 for Figure 5 A sectional view of the CC section.

[0017] Explanation of reference numerals in the attached figures: 101-First fixed part; 102-Moving part; 103-Guide column; 200-Second fixed part; 201-Pressure block; 301-Drive block; 302-Operating hole; 400-Bending mechanism; 401-Bending seat; 402-Bending block; 421-Block body; 422-Bending head; 423-Rotating shaft; 424-Reset hole; 425-Reset body; 426-Positioning pin; 501-Limiting block; 502-Limiting groove; 600-Material strip. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] like Figure 1-7 As shown, the present invention proposes a bending angle adjustment device, comprising: The first fixed part 101 and the movable part 102 are mounted on the molding machine and move linearly with the molding machine during use. The movable part 102 is connected to the first fixed part 101 through several guide posts 103. Specifically, the movable part 102 is provided with a limiting groove, and the guide posts 103 are provided with limiting protrusions. In the installed state, the limiting protrusions are placed in the limiting grooves. When the mold is opened, the movable part 102 slides on the guide posts 103 under its own weight. When the limiting protrusions are placed in the limiting grooves, the position of the movable part 102 is restricted by the limiting protrusions. When the mold is closed, the movable part 102 contacts the second fixed part 200 and slides on the guide posts 103 until the movable part 102 contacts the first fixed part 101. The number of guide posts 103 is determined according to the actual situation. In this utility model, it is preferred to provide 4 guide posts 103. The second fixing part 200 is mounted on the molding machine; and the second fixing part 200 is provided with a pressure block 201; during use, driven by the molding machine, the first fixing part 101 moves to the position of the second fixing part 200, and during the movement, the movable part 102 contacts the second fixing part 200; completing the mold closing operation; while the material strip 600 is conveyed between the second fixing part 200 and the movable part 102 through an external conveying mechanism (using existing technology, not further described); after mold closing, the material strip 600 is clamped by the movable part 102 and the second fixing part 200; One end of the drive block 301 is disposed on the first fixed part 101, and the other end passes through the operating hole 302 on the movable part 102; the bending mechanism 400 is disposed in the movable part 102, and the bending mechanism 400 rotates under the action of the drive block 301; in use, it contacts the bending position under the push of the drive block 301, and pushes the bending position to contact the pressure block 201; specifically, when the mold is closed, the movable part 102 first contacts the second fixed part 200, so that the bending mechanism 400 on the movable part 102 contacts the second fixed part 200 and is placed in the bending position. Position; As the first fixing part 101 continues to operate, the driving block 301 contacts the bending mechanism 400 and pushes the bending mechanism 400 to rotate. During the rotation, the bending mechanism 400 contacts the bent portion of the material strip 600 placed on the pressure block 201 and performs a second bend on the bent portion. After the second bend, the mold is opened under the drive of the forming machine, causing the bending mechanism 400 to separate from the second fixing part 200. Under the drive of the external conveying mechanism, the material strip 600 continues to be conveyed. The cycle operation realizes that the bent portions on the material strip 600 are bent a second time one by one.

[0022] The technical solution of this utility model utilizes the cooperation of a driving block 301 provided on the first fixed part 101 and a bending mechanism 400 provided on the movable part 102. During mold closing, the movable part 102 contacts the second fixed part 200, and the bending mechanism 400 is positioned at the pressure block 201. As the mold closing action continues, the driving block 301 contacts the bending mechanism 400 and pushes the bending mechanism 400 to rotate. During the rotation of the bending mechanism 400, it contacts the bent portion on the strip 600, allowing the bent portion to undergo a secondary bending operation under the support of the pressure block 201. Compared with the prior art, the technical solution of this utility model does not directly impact the bent portion, reducing the probability of scratches on the bent portion. In addition, since the bending mechanism 400 does not directly impact the bent portion, lateral forces are eliminated, thereby reducing the probability of cracks at the bending position and further reducing the scrap rate.

[0023] like Figure 4-7 As shown, the bending mechanism 400 includes a bending seat 401 and a bending block 402. The bending seat 401 is disposed within the movable part 102. The bending block 402 is rotatably disposed on the bending seat 401. When the bent part is bent a second time, the drive block 301 contacts the bending block 402 and pushes the bending block 402 to rotate within the bending seat 401, thereby realizing the second bending of the bent part.

[0024] The bending block 402 includes a block 421 and a bending head 422. The block 421 is connected to the bending seat 401 via a rotating shaft 423. The bending head 422 is located at one end of the block 421. During the secondary bending, the driving block 301 contacts one end of the block 421 and, after contact, pushes one end of the block 421 to rotate under the support of the rotating shaft 423, thus driving the other end of the block 421 to rotate. Since the bending head 422 is located at the other end of the block 421, the bending head 422 is activated during the rotation of the other end of the block 421. When the bending head 422 contacts the bending part, it continues to move under the push of the driving block 301, completing the secondary bending of the bending part. Figure 6 As shown, the contact area between the bending head 422 and the bending part is an arc-shaped structure, which can reduce the contact area with the bending part and reduce the friction between them.

[0025] In addition, a reset hole 424 is provided on the block 421, and a reset body 425 is provided in the reset hole 424; when the driving block 301 contacts the block 421 and pushes the block 421 to rotate, the block 421 compresses the reset body 425 during the rotation of the block 421, so that the reset body 425 is in a compressed state; when the bent part is bent a second time, the driving block 301 separates from the block 421 when the mold is opened; the reset body 425 pushes the block 421 to reset under the action of elastic deformation; preferably, the reset body 425 is a spring.

[0026] In this invention, to reduce the friction between the block 421 and the driving block 301, and to enable the bending head 422 to gradually perform a secondary bending on the bent portion, preferably, the other end of the block 421 is provided with an arc-shaped surface; the other end of the driving block 301 is provided with an inclined surface; when the driving block 301 contacts the block 421, the inclined surface on the driving block 301 contacts the arc-shaped surface on the block 421, and the block 421 gradually rotates under the push of the inclined surface of the driving block 301.

[0027] like Figure 6 and Figure 7 As shown, a number of positioning pins 426 are also inserted inside the bending seat 401; during the mold closing stage, the positioning pins 426 are inserted into the positioning holes on the strip 600, and the strip 600 is positioned by the positioning pins 426, which can avoid displacement when the bent part on the strip 600 is bent again; the number of positioning pins 426 depends on the actual situation. In this utility model, it is preferred to provide two positioning pins 426.

[0028] like Figure 3As shown, a plurality of limiting blocks 501 are provided on the second fixing part 200. When the material belt 600 is conveyed, the position of the material belt 600 is limited by the limiting blocks 501 to ensure the stability of the material belt 600 during the conveying process. Specifically, the limiting blocks 501 are provided with limiting grooves 502. In the conveying state, the material belt 600 is placed in the limiting grooves 502. The position of the material belt 600 is limited by the limiting grooves 502, so that the movement range of the material belt 600 is limited by the limiting grooves 502 during the conveying process, ensuring the stability of the material belt 600 during the conveying process.

[0029] Of course, in the mold-closing state, to avoid the limiting blocks 501 affecting the mold-closing between the movable part 102 and the second fixed part 200, it is preferable that the movable part 102 is provided with a plurality of receiving holes, and the plurality of receiving holes are arranged opposite to the plurality of limiting blocks 501; in this way, when the mold is closed, the plurality of limiting blocks 501 can be placed in the plurality of receiving holes, and thus, when the mold is closed, the plurality of limiting blocks 501 will not affect the movable part 102 and the second fixed part 200; wherein, the number of limiting blocks 501 is determined according to actual needs, and this utility model does not further limit it; but it is necessary to ensure that the number of the plurality of limiting blocks 501 and the plurality of receiving holes are the same.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bending angle adjustment device characterized by comprising: include: The first fixed part (101) and the movable part (102) are provided on the molding machine. The first fixed part (101) is provided on the molding machine. The movable part (102) is connected to the first fixed part (101) by a plurality of guide posts (103). A second fixing part (200) is provided on the molding machine; and a pressure block (201) is provided on the second fixing part (200). The driving block (301) has one end disposed on the first fixed part (101) and the other end passing through the operating hole (302) on the movable part (102); A bending mechanism (400) for rotating under the action of the drive block (301) is provided in the movable part (102); in use, it contacts the bending position under the push of the drive block (301) and pushes the bending position to contact the pressure block (201).

2. The bend angle adjustment device according to claim 1, characterized by The bending mechanism (400) includes: A bending seat (401) is disposed within the movable part (102); The bending block (402) is rotatably mounted on the bending seat (401).

3. The bend angle adjustment device according to claim 2, characterized by The bending block (402) includes: Block (421) and bending head (422); The block (421) is connected to the bending seat (401) via a rotating shaft (423); the bending head (422) is located at one end of the block (421).

4. The bend angle adjustment device according to claim 3, wherein The block (421) is provided with a reset hole (424), and a reset body (425) is provided in the reset hole (424).

5. The bend angle adjustment device according to claim 3, wherein The other end of the block (421) is provided with an arc-shaped surface.

6. The bend angle adjustment device according to claim 5, wherein An inclined surface is provided on the other end of the drive block (301).

7. The bend angle adjustment device according to claim 2, wherein Several positioning pins (426) are also inserted inside the bending seat (401).

8. The bend angle adjustment device according to claim 1, wherein Also includes: Several limiting blocks (501) are disposed on the second fixing part (200).

9. The bending angle adjustment device according to claim 8, characterized in that, The limiting block (501) is provided with a limiting groove (502); in the conveying state, the material belt (600) is placed in the limiting groove (502).

10. The bending angle adjustment device according to claim 8, characterized in that, The movable part (102) is provided with a plurality of receiving holes, and the plurality of receiving holes are arranged opposite to the plurality of limiting blocks (501).

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