A fast unloading fixture for lead frame

Abstract

The present application relates to the technical field of fixtures, and provides a fast unloading fixture for lead frames, including a mounting plate and a plurality of limit assemblies, wherein the plurality of limit assemblies are arranged at intervals along the length direction and the width direction of the mounting plate; both ends of the mounting plate are provided with positioning grooves for positioning with the injection mold; the limit assemblies include a plurality of limit posts, a first limit baffle and a second limit baffle; the plurality of limit posts are arranged on one side of the mounting plate, and a limit space for limiting the placement of the lead frame is formed between the plurality of limit posts and the mounting plate; the first limit baffle and the second limit baffle are respectively arranged on opposite sides of the limit space, and the first limit baffle and the second limit baffle are both rotatably connected to the mounting plate and the axis of rotation is both located outside the limit space. Based on this, the unloading efficiency of the lead frame can be improved, and the occurrence of scalding accidents can be reduced.

Description

Technical Field

[0001] The present application relates to the field of clamps, and in particular to a fast blanking clamp for lead frames. Background Art

[0002] The SMD emitting tube is an electronic component, usually used for signal transmission or amplification in electronic devices. The SMD emitting tube adopts the SMD packaging form, which has the advantages of small size, light weight, and easy integration. It is widely used in wireless communication, audio amplification and other fields.

[0003] At present, in the production process of SMD transmitting tubes, an injection mold is usually used to inject epoxy resin into the lead frame. When the lead frame is placed in the injection mold, it needs to be manually aligned one by one, which is not only time-consuming and labor-intensive, but also easy to cause burns due to the high temperature of the injection mold, so it needs to be improved. Utility Model Content

[0004] In order to improve the efficiency of cutting lead frames and reduce the occurrence of scalding accidents, the present application provides a quick cutting fixture for lead frames.

[0005] The present application provides a fast blanking fixture for lead frames using the following technical solutions:

[0006] A quick blanking fixture for a lead frame comprises a mounting plate and a plurality of limit assemblies, wherein the plurality of limit assemblies are arranged at intervals along the length and width directions of the mounting plate; both ends of the mounting plate are provided with positioning grooves for positioning with an injection mold; the limit assembly comprises a plurality of limit posts, a first limit baffle and a second limit baffle; the plurality of limit posts are arranged on one side of the mounting plate, and a limit space for limiting the placement of the lead frame is formed between the plurality of limit posts and the mounting plate; the first limit baffle and the second limit baffle are respectively arranged on opposite sides of the limit space, and the first limit baffle and the second limit baffle are both rotatably connected to the mounting plate and the axes of rotation are both located outside the limit space.

[0007] By adopting the above technical solution, in actual application, the staff first places each lead frame in each limiting space, and then rotates the first limiting baffle and the second limiting baffle so that the first limiting baffle and the second limiting baffle are partially rotated into the limiting space to limit the lead frame from falling from the limiting space; then the mounting plate is placed on one side of the limiting column on the injection mold, and the positioning with the injection mold is achieved through two positioning grooves, so that each lead frame is aligned with the corresponding blanking position; at this time, it is only necessary to rotate the first limiting baffle and the second limiting baffle so that the first limiting baffle and the second limiting baffle are rotated out of the limiting space, and each lead frame is accurately blanked under the action of gravity, without the need for manual alignment one by one, thereby improving the blanking efficiency of the lead frame, and the staff does not need to directly contact the injection mold, which can effectively reduce the occurrence of scalding accidents.

[0008] Preferably, the first limit blocking piece and the second limit blocking piece are spaced apart along the length direction of the mounting plate, the number of the first limit blocking piece and the second limit blocking piece is multiple, and the multiple first limit blocking pieces and the multiple second limit blocking pieces are spaced apart along the width direction of the mounting plate.

[0009] By adopting the above technical solution and providing a plurality of first limiting baffles and a plurality of second limiting baffles, the limiting effect on the lead frame is improved.

[0010] Preferably, the limiting assembly also includes two connecting rods, and the two connecting rods are both slidably connected to the side of the mounting plate away from the limiting column along the width direction of the mounting plate; a first connecting column is eccentrically provided on the rotating shaft of the first limiting baffle, and each of the first connecting columns is passed through one of the connecting rods; a second connecting column is eccentrically provided on the rotating shaft of the second limiting baffle, and each of the second connecting columns is passed through the other of the connecting rods.

[0011] By adopting the above technical solution and setting two connecting rods, the sliding connecting rod can realize the rotation of multiple first limit baffles or multiple second limit baffles, without rotating each first limit baffle or second limit baffle, thereby facilitating the blanking of the lead frame.

[0012] Preferably, the limiting assembly further comprises a plurality of limiting blocks, the plurality of limiting blocks are detachably connected to a side of the mounting plate away from the limiting column, and the connecting rod is limited between the limiting blocks and the mounting plate.

[0013] By adopting the above technical solution and providing a plurality of limit blocks, the connecting rod can be slidably connected to the mounting plate, and the installation between the connecting rod and the plurality of first limit blocks or the plurality of second limit blocks is facilitated.

[0014] Preferably, the quick unloading fixture also includes a linkage assembly, which includes a linkage rod and a plurality of guide blocks. The linkage rod is slidably connected to the mounting plate along the length direction of the mounting plate, and the plurality of guide blocks are spaced apart on the linkage rod along the length direction of the mounting plate. Inclined guide grooves are provided on both sides of the guide blocks, and two adjacent connecting rods are respectively slidably limited in the two guide grooves.

[0015] By adopting the above technical solution, a linkage rod and multiple guide blocks are set, and a sliding linkage rod is used to drive the multiple guide blocks to slide. Under the action of the guide groove, each connecting rod is made to slide, that is, the sliding linkage rod can drive each connecting rod to slide, so as to rotate each first limit baffle and each second limit baffle, thereby realizing batch rapid unloading of lead frames.

[0016] Preferably, the linkage assembly further comprises a holding head, and the holding head is arranged at one end of the linkage rod.

[0017] By adopting the above technical solution and providing a holding head, it is convenient for a worker to hold the linkage rod to slide.

[0018] Preferably, a plurality of observation slots are provided on the mounting plate, and each of the observation slots is communicated with each of the limiting spaces.

[0019] By adopting the above technical solution and providing a plurality of observation slots, it is convenient to observe the position of the lead frame and the injection mold during blanking.

[0020] Preferably, two handles are provided on one side of the mounting plate, and the two handles are spaced apart along the width direction of the mounting plate.

[0021] By adopting the above technical solution and providing two handles, it is convenient to lift or lower the mounting plate.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. No need to align manually one by one, so as to improve the efficiency of lead frame unloading, and the staff does not need to directly contact the injection mold, which can effectively reduce the occurrence of scalding accidents;

[0024] 2. By setting two connecting rods, the sliding connecting rods can realize the rotation of multiple first limit baffles or multiple second limit baffles, without rotating each first limit baffle or second limit baffle, thereby facilitating the blanking of the lead frame;

[0025] 3. By setting a linkage rod and multiple guide blocks, a sliding linkage rod is used to drive the multiple guide blocks to slide, and each connecting rod is made to slide under the action of the guide groove, that is, the sliding linkage rod can drive each connecting rod to slide, so as to rotate each first limit block piece and each second limit block piece, thereby realizing batch rapid unloading of lead frames. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the rapid material removal fixture in the embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the overall structure of the quick material removal fixture in the embodiment of the present application from another perspective.

[0028] Figure numerals: 1. mounting plate; 11. positioning groove; 12. observation groove; 13. handle; 2. limit assembly; 21. limit column; 22. first limit baffle; 221. first connecting column; 23. second limit baffle; 231. second connecting column; 24. limit space; 25. connecting rod; 251. through hole; 252. connecting protrusion; 26. limit block; 3. linkage assembly; 31. linkage rod; 32. guide block; 321. guide groove; 33. holding head. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-2 This application is described in further detail.

[0030] The embodiment of the present application discloses a quick blanking fixture for a lead frame.

[0031] Reference Figure 1 The quick blanking fixture includes a mounting plate 1 and a plurality of limit assemblies 2. The plurality of limit assemblies 2 are arranged at intervals along the length direction and the width direction of the mounting plate 1. In the present embodiment, the number of the limit assemblies 2 is eight, four of which are arranged in the length direction of the mounting plate 1 and two are arranged in the width direction of the mounting plate 1, that is, the eight limit assemblies 2 are distributed in four rows and two columns.

[0032] The mounting plate 1 is in a rectangular plate shape, and positioning grooves 11 are provided at both ends of the mounting plate 1 . The two positioning grooves 11 cooperate with the injection mold to achieve positioning between the mounting plate 1 and the injection mold, thereby achieving positioning and placement of the mounting plate 1 .

[0033] The limiting assembly 2 includes a plurality of limiting posts 21, a first limiting baffle 22 and a second limiting baffle 23. The plurality of limiting posts 21 are fixedly connected to one side of the mounting plate 1. The plurality of limiting posts 21 are distributed in a rectangular shape and form a limiting space 24 between the plurality of limiting posts 21 and the mounting plate 1. The limiting space 24 is arranged in a rectangular shape and its length direction is parallel to the width direction of the mounting plate 1, so as to provide a limiting position for the lead frame. The first limiting baffle 22 and the second limiting baffle 23 are respectively arranged on both sides of the limiting space 24. The first limiting baffle 22 and the second limiting baffle 23 are both rotatably connected to one side of the mounting plate 1 located at the limiting post 21, and the axes of rotation of the first limiting baffle 22 and the second limiting baffle 23 are both located outside the limiting space 24. Among them, in the length direction of the mounting plate 1, the second limiting baffle 23 of one limiting assembly 2 can simultaneously serve as the first limiting baffle 22 of the other limiting assembly 2.

[0034] In actual application, the staff first places the mounting plate 1 on one side of the limiting column 21 facing upward, places each lead frame in each limiting space 24, and then rotates the first limiting baffle 22 and the second limiting baffle 23 so that the first limiting baffle 22 and the second limiting baffle 23 are partially rotated into the limiting space 24. When the mounting plate 1 is located on one side of the limiting column 21 facing downward, it can prevent the lead frame from falling from the limiting space 24.

[0035] Afterwards, the mounting plate 1 is placed on the injection mold with one side of the limiting column 21 facing downward, and the two positioning grooves 11 are used to realize positioning with the injection mold, so that each lead frame is aligned with the corresponding blanking position. At this time, it is only necessary to rotate the corresponding first limiting baffle 22 and the second limiting baffle 23 so that the first limiting baffle 22 and the second limiting baffle 23 rotate out of the limiting space 24, and each lead frame is accurately blanked under the action of gravity, without the need for manual alignment one by one, thereby improving the blanking efficiency of the lead frame, and the staff does not need to directly contact the injection mold, which can effectively reduce the occurrence of scalding accidents.

[0036] In some embodiments, the first limiting baffle 22 and the second limiting baffle 23 are spaced apart along the length direction of the mounting plate 1, the number of the first limiting baffle 22 is two and they are spaced apart along the width direction of the mounting plate 1, the number of the second limiting baffle 23 is two and they are spaced apart along the width direction of the mounting plate 1, and the two first limiting baffles 22 and the two second limiting baffles 23 are used to limit the four sides of the lead frame, further limiting the lead frame from falling from the limiting space 24, thereby improving the limiting effect on the lead frame.

[0037] Reference Figure 1 and Figure 2In some embodiments, the limiting assembly 2 further includes two connecting rods 25, and the two connecting rods 25 are both slidably connected to the side of the mounting plate 1 away from the limiting column 21 along the width direction of the mounting plate 1. Among them, the first limiting block 22 has a first connecting column 221 protruding from the rotating shaft, and the first connecting column 221 is eccentrically arranged. The connecting rod 25 is provided with two penetration holes 251, and the two first connecting columns 221 are respectively penetrated through the two penetration holes 251 of one of the connecting rods 25. Similarly, the second limiting block 23 has a second connecting column 231 protruding from the rotating shaft, and the second connecting column 231 is eccentrically arranged. The two second connecting columns 231 are respectively penetrated through the two penetration holes 251 of the other connecting rod 25. The sliding connecting rod 25 can realize the rotation of multiple first limiting blocks 22 or multiple second limiting blocks 23, without rotating each first limiting block 22 or second limiting block 23, so as to facilitate the blanking of the lead frame.

[0038] In some embodiments, the limit assembly 2 further includes four limit blocks 26, which are detachably connected to the mounting plate 1 on one side of the connecting rod 25. In this embodiment, the limit blocks 26 are fixedly connected to the mounting plate 1 by bolts. In other embodiments, the detachable connection of the limit blocks 26 can also be achieved by plugging, snapping, etc., which is not limited by the present application. Two of the limit blocks 26 cooperate with one of the connecting rods 25, so that the connecting rod 25 is limited between the limit blocks 26 and the mounting plate 1, so as to achieve the sliding connection of the connecting rod 25 to the mounting plate 1. At the same time, after the penetration hole 251 of the connecting rod 25 is penetrated into the first connecting column 221 or the second connecting column 231, the limit blocks 26 are installed to achieve the installation of the connecting rod 25, thereby facilitating the installation between the connecting rod 25 and the plurality of first limit blocks 22 or the plurality of second limit blocks 23.

[0039] In some embodiments, the rapid blanking fixture further comprises a linkage assembly 3. Specifically, the linkage assembly 3 comprises a linkage rod 31 and a plurality of guide blocks 32. The linkage rod 31 is slidably connected to one side of the mounting plate 1 located at the connecting rod 25 along the length direction of the mounting plate 1. The plurality of guide blocks 32 are rectangular blocks and are fixedly connected to the linkage rod 31 at intervals along the length direction of the mounting plate 1. The two sides of the guide blocks 32 are symmetrically provided with inclined guide grooves 321. One end of each connecting rod 25 close to the guide block 32 protrudes to form a connecting protrusion 252. The connecting protrusions 252 of the two connecting rods 25 located in the width direction of the mounting plate 1 are respectively slidably limited in the two guide grooves 321. The sliding linkage rod 31 drives the plurality of guide blocks 32 to slide, and the connecting rods 25 slide under the action of the guide grooves 321, that is, the sliding linkage rod 31 can drive the connecting rods 25 to slide, so as to rotate the first limit baffles 22 and the second limit baffles 23, thereby realizing batch rapid blanking of the lead frame.

[0040] In some embodiments, the linkage assembly 3 also includes a holding head 33, which is spherical and fixedly connected to one end of the linkage rod 31, so that the staff can hold the linkage rod 31 to slide, thereby facilitating the rapid batch unloading of lead frames.

[0041] In some embodiments, eight observation slots 12 are provided on the mounting plate 1, and each observation slot 12 is connected to a corresponding limiting space 24, so as to facilitate observation of the position of the lead frame and the injection mold during blanking, and can reduce the material used in the mounting plate 1 to reduce production costs.

[0042] In some embodiments, two handles 13 are fixedly connected to one side of the mounting plate 1 , and the two handles 13 are spaced apart along the width direction of the mounting plate 1 to facilitate lifting or lowering the mounting plate 1 .

[0043] The implementation principle of this embodiment is: in actual application, the staff first places the mounting plate 1 on one side of the limiting column 21 facing upward, places each lead frame in each limiting space 24, and then rotates the first limiting baffle 22 and the second limiting baffle 23 so that the first limiting baffle 22 and the second limiting baffle 23 are partially rotated into the limiting space 24. When the mounting plate 1 is located on one side of the limiting column 21 facing downward, the lead frame can be restricted from falling from the limiting space 24.

[0044] Afterwards, the mounting plate 1 is placed on the injection mold with one side of the limiting column 21 facing downward, and the two positioning grooves 11 are used to realize positioning with the injection mold, so that each lead frame is aligned with the corresponding blanking position. At this time, it is only necessary to rotate the corresponding first limiting baffle 22 and the second limiting baffle 23 so that the first limiting baffle 22 and the second limiting baffle 23 rotate out of the limiting space 24, and each lead frame is accurately blanked under the action of gravity, without the need for manual alignment one by one, thereby improving the blanking efficiency of the lead frame, and the staff does not need to directly contact the injection mold, which can effectively reduce the occurrence of scalding accidents.

[0045] 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 fast blanking fixture for a lead frame, characterized in that: The invention comprises a mounting plate (1) and a plurality of limiting components (2), wherein the plurality of limiting components (2) are arranged at intervals along the length direction and the width direction of the mounting plate (1); both ends of the mounting plate (1) are provided with positioning grooves (11) for positioning with the injection mold; the limiting components (2) comprise a plurality of limiting columns (21), a first limiting baffle (22) and a second limiting baffle (23); the plurality of limiting columns (21) are arranged on one side of the mounting plate (1), and a limiting space (24) for limiting the placement of a lead frame is formed between the plurality of limiting columns (21) and the mounting plate (1); the first limiting baffle (22) and the second limiting baffle (23) are respectively arranged on opposite sides of the limiting space (24), and the first limiting baffle (22) and the second limiting baffle (23) are both rotatably connected to the mounting plate (1), and the axes of rotation are both located outside the limiting space (24).

2. A fast blanking fixture for a lead frame according to claim 1, characterized in that: The first limit blocking piece (22) and the second limit blocking piece (23) are arranged at intervals along the length direction of the mounting plate (1); the number of the first limit blocking piece (22) and the second limit blocking piece (23) is multiple, and the multiple first limit blocking pieces (22) and the multiple second limit blocking pieces (23) are all arranged at intervals along the width direction of the mounting plate (1).

3. A fast blanking fixture for lead frame according to claim 2, characterized in that: The limiting assembly (2) further comprises two connecting rods (25), both of which are slidably connected to a side of the mounting plate (1) away from the limiting column (21) along the width direction of the mounting plate (1); a first connecting column (221) is eccentrically provided on the rotation axis of the first limiting baffle (22), and each of the first connecting columns (221) is passed through one of the connecting rods (25); and a second connecting column (231) is eccentrically provided on the rotation axis of the second limiting baffle (23), and each of the second connecting columns (231) is passed through another of the connecting rods (25).

4. A fast blanking fixture for a lead frame according to claim 3, characterized in that: The limiting assembly (2) further comprises a plurality of limiting blocks (26), wherein the plurality of limiting blocks (26) are detachably connected to a side of the mounting plate (1) away from the limiting column (21), and the connecting rod (25) is limited between the limiting blocks (26) and the mounting plate (1).

5. A fast blanking fixture for lead frame according to claim 3, characterized in that: The rapid material removal fixture further comprises a linkage assembly (3), the linkage assembly (3) comprising a linkage rod (31) and a plurality of guide blocks (32), the linkage rod (31) being slidably connected to the mounting plate (1) along the length direction of the mounting plate (1), the plurality of guide blocks (32) being arranged at intervals on the linkage rod (31) along the length direction of the mounting plate (1), both sides of the guide blocks (32) being provided with inclined guide grooves (321), and two adjacent connecting rods (25) being slidably limited in the two guide grooves (321) respectively.

6. A fast blanking fixture for lead frame according to claim 5, characterized in that: The linkage assembly (3) further comprises a holding head (33), wherein the holding head (33) is arranged at one end of the linkage rod (31).

7. A fast blanking fixture for a lead frame according to claim 1, characterized in that: A plurality of observation slots (12) are provided on the mounting plate (1), and each of the observation slots (12) is in communication with each of the limiting spaces (24).

8. The fast blanking fixture for lead frame according to claim 1, characterized in that: Two handles (13) are provided on one side of the mounting plate (1), and the two handles (13) are arranged at intervals along the width direction of the mounting plate (1).

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