Turnover device for turning square pin terminal

Abstract

The utility model relates to the technical field of electronic connector production and processing, in particular to an overturning device for overturning square pin terminals, which comprises a mounting seat, a plurality of rotating shafts are rotatably arranged on the mounting seat according to the number of terminals and intervals, and a square pin hole is formed in the center of each rotating shaft and is used for inserting the square pin terminals; the tail part of each rotating shaft is provided with a connecting rod; the push-and-pull plate is arranged on the mounting seat, longitudinal notches with the same number as the connecting rods are formed in the push-and-pull plate, and the connecting rods are mounted in the corresponding longitudinal notches respectively. The push-and-pull plate is pushed to drive the multiple rotating shafts at the same time, so that synchronous overturning of the whole row of terminals is completed, complex independent adjustment or multi-step operation is omitted, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electronic connector production and processing, and in particular to a flipping device for flipping four-way terminals. Background Technology

[0002] With the miniaturization and high performance of electronic products, insert injection molding technology has been widely used in fields such as electronic connectors, automotive electronics, and communication equipment. Insert injection molding refers to the process of pre-placing metal terminals or other inserts into a mold during injection molding, forming a tightly integrated structure with the plastic part.

[0003] In actual production, four-pronged terminals, as a commonly used metal insert, are typically manufactured from square copper wire through processes such as stamping and bending. The tips of these terminals usually have four faces: two stamped faces and two sheared faces. Due to limitations in the stamping process, only the sheared faces can form rounded corners (R-angle), while the stamped faces are generally chamfered (C-angle). During the injection molding process, to ensure smooth insertion of the terminal into the mold's pinhole, the terminal tip needs to fit well with the mold slider. However, due to unavoidable angle fluctuations during the bending process, coupled with the sharp corner characteristics of the chamfered structure, the terminal is prone to friction and scratches with the mold slider during insertion, generating metal powder. This not only affects the appearance but may also reduce the electrical performance of the finished product, leading to a higher defect rate.

[0004] To address these issues, terminal tips with rounded corners (R-angle) can be used to reduce scratching against the mold. However, since the R-angle of the four-pronged terminal is only located on the shearing surface, each terminal needs to be rotated 90° during production to ensure the R-angle faces the mold slider after bending and assembly. Existing production lines typically use manual rotation of each terminal, which is not only inefficient but also carries the risk of incorrect orientation during assembly, especially for products with a large number of terminals. Utility Model Content

[0005] The purpose of this invention is to provide a flipping device for flipping four-way terminals, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flipping device for flipping four-pronged terminals, comprising: a mounting base, wherein a plurality of rotating shafts are rotatably arranged on the mounting base according to the number and spacing of terminals, and each rotating shaft has a square pin hole at its center for inserting four-pronged terminals; a connecting rod, wherein a connecting rod is provided at the tail of each rotating shaft; and a push-pull plate, disposed on the mounting base, wherein the push-pull plate has longitudinal slots of the same number as the connecting rods, and the connecting rods are respectively installed in the corresponding longitudinal slots.

[0007] Preferably, the rotating shaft is provided with a limiting block for positioning the entire row of terminals, which is used to fix the position of the terminals after they are inserted.

[0008] Preferably, the mounting base is provided with a first support base and a second support base, which are respectively used to support the two ends of the rotating shaft.

[0009] Preferably, the push-pull plate includes a first push-pull plate disposed on the mounting base, a second push-pull plate disposed opposite to the first push-pull plate, and a connecting plate disposed above the first push-pull plate and the second push-pull plate.

[0010] Preferably, the longitudinal slot is a long, straight slot, which is arranged longitudinally along the first push-pull plate and the second push-pull plate respectively, and is used to guide the movement of the connecting rod.

[0011] Preferably, one end of the connecting rod is misaligned with the tail of the rotating shaft, and the other end of the connecting rod is slidably disposed in the longitudinal groove.

[0012] Preferably, the rotating shaft is provided with a chip removal hole for discharging water vapor, oil and dust carried during the insertion of the terminal into the pin hole.

[0013] The beneficial effects of this utility model are:

[0014] Pushing the push-pull plate can simultaneously drive multiple rotating shafts, completing the synchronous flipping of the entire row of terminals, eliminating the need for complex individual adjustments or multi-step operations, and significantly improving production efficiency.

[0015] By setting up a linkage structure between the connecting rod and the longitudinal slot, the movement stroke of the connecting rod is precisely controlled, ensuring that the drive shaft can achieve a precise 90° rotation. This guarantees the consistency and standardization of the entire row of four-way terminal blocks after rotation, meeting the requirements of subsequent processes such as insert injection molding.

[0016] The staggered connection of the linkages and the staggered arrangement of the push-pull plates can avoid interference between the linkages when the spacing between the four-way terminals is small and the arrangement is dense, thus ensuring the smoothness and reliability of the flipping operation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a flipping device for flipping four-way terminals according to an embodiment of the present invention;

[0019] Figure 2 This invention relates to a flipping device for flipping four-way terminals. Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is an exploded view of the overall structure of a flipping device for flipping four-way terminals according to an embodiment of the present invention;

[0021] Figure 4 This invention relates to a flipping device for flipping four-way terminals. Figure 3 Enlarged view of the structure at point B in the middle.

[0022] The components are labeled as follows: mounting base (100), rotating shaft (101), square pinhole (102), four-way terminal block (103), connecting rod (104), push-pull plate (105), first push-pull plate (105a), second push-pull plate (105b), connecting plate (105c), longitudinal slot (106), chip removal hole (107), limiting block (108), first support base (110), and second support base (111). Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 4As shown in the specific embodiment of this utility model, a flipping device for flipping four-pronged terminals includes: a mounting base 100, on which multiple rotating shafts 101 are rotatably arranged according to the number and spacing of terminals; each rotating shaft 101 has a square pinhole 102 at its center for inserting four-pronged terminals 103; a connecting rod 104, one end of which is connected to the tail of each rotating shaft 101; and a push-pull plate 105, disposed on the mounting base 100, with longitudinal slots 106 in the same number as the connecting rods 104, and the other ends of the connecting rods 104 slidingly disposed in the corresponding longitudinal slots 106. When the push-pull plate 105 is moved horizontally, one end of the connecting rod 104 moves linearly in the vertical direction within the longitudinal slots 106, driving the rotating shafts 101 to rotate, causing the entire row of terminals to flip 90°, adjusting the R angle on the shear surface to the horizontal direction for subsequent insert injection molding.

[0026] The rotating shaft 101 is provided with a chip removal hole 107, which is used to remove moisture, oil and dust carried during the insertion of the terminal into the pin hole. In particular, removing moisture, oil or dust carried by the terminal during repeated insertion or rotation helps to keep the pin hole clean and prevents contamination from affecting the subsequent connection quality and processing accuracy.

[0027] A limiting block 108 is provided on the rotating shaft 101 for positioning the entire row of terminals and for fixing the position of the terminals after they are inserted. Each rotating shaft 101 is provided with a limiting block 108, which is detachably set in a limiting hole 109 on one side of the chip removal hole 107. The limiting block 108 is used to position and fix the terminals after the four-point terminal 103 is inserted into the square pin hole 102 in the center of the rotating shaft 101.

[0028] The mounting base 100 is provided with a first support base 110 and a second support base 111, which are used to support both ends of the rotating shaft 101, respectively. The first support base 110 and the second support base 111 provide support to both ends of the rotating shaft 101, which passes through both support bases, ensuring the stability and smooth rotation of the rotating shaft 101. This dual-end support effectively prevents the rotating shaft 101 from wobbling or swaying during rotation.

[0029] The push-pull plate 105 includes a first push-pull plate 105a disposed on the mounting base 100, a second push-pull plate 105b disposed opposite to the first push-pull plate 105a, and a connecting plate 105c disposed above the first push-pull plate 105a and the second push-pull plate 105b. The first push-pull plate 105a and the second push-pull plate 105b are slidably disposed on the mounting base 100 via a connecting rod 104. The connecting plate 105c connects the first push-pull plate 105a and the second push-pull plate 105b into a whole to ensure that they are subjected to force and move synchronously during horizontal movement, thereby improving the overall structural strength and stability.

[0030] The longitudinal slot 106 is a long, straight groove, arranged longitudinally along the first push-pull plate 105a and the second push-pull plate 105b, respectively, and is used to guide the movement of the connecting rod 104. Specifically, the longitudinal slot 106 guides the linear sliding of the connecting rod 104 in the longitudinal direction, allowing the connecting rod 104 to move stably and smoothly up and down within the longitudinal slot 106 when the push-pull plate moves one end of the connecting rod 104, thus enabling the other end of the rotating shaft 101 to achieve precise rotation. By precisely limiting the maximum movement distance of the connecting rod 104 within the slot, it is ensured that when the push-pull plate pushes the connecting rod 104, the rotating shaft 101 rotates 90 degrees.

[0031] One end of each of the multiple connecting rods 104 is offsetly connected to the tail of the rotating shaft 101, and the other end of each connecting rod 104 is slidably disposed in the longitudinal slot 106. Because the spacing between the four terminal blocks 103 is very small, to avoid interference between the connecting rods 104, this invention employs an offset connection method: one end of the connecting rod is offsetly connected to the tail of the corresponding rotating shaft 101, and the other end of the connecting rod is slidably disposed in the longitudinal slot 106. Part of the longitudinal slot 106 is formed on the first push-pull plate 105a, and another part of the longitudinal slot 106 is formed on the opposite second push-pull plate 105b. The staggered arrangement of the two push-pull plates achieves smooth linkage and flipping even when the terminals are densely arranged.

[0032] Working principle: The present invention provides a flipping device for flipping four-prong terminals. It is mainly used to flip the entire row of terminals 90° by mechanical linkage after the four-prong terminals 103 are inserted into the rotating shaft 101, so that the R angle on the shear surface is adjusted to the horizontal direction, providing a standardized terminal placement direction for subsequent insert injection molding.

[0033] The specific work process is as follows:

[0034] First, the four-pronged terminals 103 are sequentially inserted into the square pin holes 102 at the center of each rotating shaft 101 on the mounting base 100. The limiting block 108 on each rotating shaft 101 is used to position and fix the inserted terminals, ensuring that the terminals do not loosen or shift during rotation. The two ends of the rotating shaft 101 are supported by the first support base 110 and the second support base 111, respectively, to ensure its rotational stability.

[0035] When a flipping operation is required, the operator or drive mechanism pushes the push-pull plate horizontally along the direction of the terminal strip. The push-pull plate connects the first push-pull plate 105a and the second push-pull plate 105b into a whole through the connecting plate 105c above, ensuring that the two push-pull plates move synchronously. During the horizontal movement of the push-pull plate, the longitudinal slots 106 on the push-pull plate provide longitudinal guidance for the connecting rods 104, so that each connecting rod 104 moves linearly in the vertical direction within the slot.

[0036] Because one end of each connecting rod 104 is misaligned with the tail of the corresponding rotating shaft 101, and the other end is slidably disposed in the longitudinal slot 106, when the connecting rod 104 moves up and down in the slot, it drives the rotating shaft 101 to rotate around its own axis. To avoid interference between the connecting rods 104, the longitudinal slots 106 are arranged in an alternating pattern, with one part disposed on the first push-pull plate 105a and the other part disposed on the second push-pull plate 105b. This structural design enables smooth flipping operation even under conditions of high terminal density.

[0037] In addition, by precisely designing the length of the longitudinal slot 106, the maximum sliding distance of the connecting rod 104 in the slot is limited, ensuring that when the push-pull plate drives the connecting rod 104 to move, the rotation angle of the driven shaft 101 is precisely controlled at 90°, thereby ensuring that the entire row of terminals flips in a consistent manner and meets the process requirements of subsequent processing steps.

[0038] During the flipping process, the rotating shaft 101 is provided with a chip removal hole 107, which is used to remove moisture, oil or dust carried by the terminal during multiple insertions, which helps to keep the square pin hole 102 clean and prevents contamination from affecting the subsequent connection quality or processing accuracy.

[0039] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0040] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flipping device for flipping four-way terminal blocks, characterized in that, Includes a mounting base (100), on which multiple rotating shafts (101) are rotatably arranged according to the number and spacing of terminals. Each rotating shaft (101) has a square pin hole (102) at its center for inserting a four-pronged terminal (103). A connecting rod (104), one end of which is connected to the tail of each of the rotating shafts (101); A push-pull plate (105) is disposed on the mounting base (100). The push-pull plate (105) has the same number of longitudinal slots (106) as the connecting rods (104). The other end of the connecting rods (104) is slidably disposed in the corresponding longitudinal slots (106).

2. The flipping device for flipping four-way terminals according to claim 1, characterized in that, The rotating shaft (101) is provided with a limiting block (108) for positioning the entire row of terminals, which is used to fix the position of the terminals after they are inserted.

3. The flipping device for flipping four-way terminals according to claim 2, characterized in that, The mounting base (100) is provided with a first support base (110) and a second support base (111), which are respectively used to support the two ends of the rotating shaft (101).

4. The flipping device for flipping four-way terminals according to claim 3, characterized in that, The push-pull plate (105) includes a first push-pull plate (105a) disposed on the mounting base (100), a second push-pull plate (105b) disposed opposite to the first push-pull plate (105a), and a connecting plate (105c) disposed above the first push-pull plate (105a) and the second push-pull plate (105b).

5. The flipping device for flipping four-way terminals according to claim 4, characterized in that, The longitudinal slot (106) is a long strip straight slot, which is arranged longitudinally along the first push-pull plate (105a) and the second push-pull plate (105b) respectively, and is used to guide the movement of the connecting rod (104).

6. The flipping device for flipping four-way terminals according to claim 5, characterized in that, One end of the connecting rod (104) is misaligned with the tail of the rotating shaft (101), and the other end of the connecting rod (104) is slidably disposed in the longitudinal slot (106).

7. The flipping device for flipping four-way terminals according to claim 6, characterized in that, The rotating shaft (101) is provided with a chip removal hole (107) for discharging water vapor, oil and dust carried during the insertion of the terminal into the pin hole.

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