CN220914159U

CN220914159U - Lead frame fixed point correction jig

Info

Publication number: CN220914159U
Application number: CN202322518184.8U
Authority: CN
Inventors: 陈庆麟
Original assignee: Suzhou Zhongmeida Electronic Technology Co ltd
Current assignee: Suzhou Zhongmeida Electronic Technology Co ltd
Priority date: 2023-09-17
Filing date: 2023-09-17
Publication date: 2024-05-07
Anticipated expiration: 2033-09-17

Abstract

The utility model relates to the technical field of jigs, and discloses a lead frame fixed-point correction jig which comprises a base, wherein a chute is formed in the upper surface of the base, a bidirectional screw rod is rotatably arranged in the chute, and a motor is fixedly arranged at the position, corresponding to the tail end of the bidirectional screw rod, of the outer wall of the base. This kind of lead frame fixed point correction tool, through motor drive two-way lead screw rotation, can adjust the position of two movable blocks inside the spout under screw drive's effect, and make the movable block can stably stay in the position after the adjustment, can avoid the device when using, lead frame self tension's effect down lead frame leads to the movable block to appear the displacement in the spout, and then influence the device to lead frame's correction effect, and when two grip block centre gripping fixed lead frame, the user can drive motor is further adjusted to the distance between two movable blocks for the device reaches best to the correction effect of the lead frame of deformation.

Description

Lead frame fixed point correction jig

Technical Field

The utility model relates to the technical field of jigs, in particular to a lead frame fixed-point correction jig.

Background

The lead frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electric connection between an internal circuit leading-out end of the chip and an external lead by means of bonding materials (gold wires, aluminum wires and copper wires) to form an electric loop, plays a role of a bridge connected with an external lead, and is an important basic material in the electronic information industry because the lead frame is needed to be used in most of semiconductor integrated blocks. With the development of large-scale integrated circuits and very large-scale integrated circuits, the integrated circuits are being developed towards high integration, multifunction, high density of circuits, diversification of packages and high performance, and the requirements on lead frame materials are also increasing.

The lead frame production process generally comprises three steps of stamping, electroplating and slicing, and in the production process, the lead frame often has deformation problems, such as transverse bending deformation, namely, the middle part of the lead frame is arched upwards or downwards, and the deformed lead frame can be scrapped due to out-of-tolerance dimension, so that material waves are caused.

In the prior art, patent publication number CN216487995U provides a deformation correction jig for lead frame, which comprises a base and at least two correction components, wherein the two correction components are oppositely arranged at two sides of the base, and the distance between the two correction components is adjustable; the correction assembly comprises a connecting piece, a guide wheel, a limit gasket and a nut, wherein the nut is in threaded connection with the connecting piece, the guide wheel is detachably connected to the base through the connecting piece and the nut, the limit gasket is connected between the guide wheel and the base, a preset distance is reserved between the guide wheel and the top surface of the base, the guide wheel can rotate around the connecting piece, grooves are formed in the peripheral wall of the guide wheel, the grooves extend along the circumference of the guide wheel, and in the vertical direction, the heights of the two grooves are equal. The utility model has the advantages of simple structure, convenient operation, strong compatibility and capability of effectively improving the deformation of the lead frame.

The technical scheme has the advantages of simple structure, convenient operation, strong compatibility and capability of effectively improving the deformation of the lead frame, but the technical scheme is characterized in that the lower end of the correction component and the sliding groove lack a limiting structure when in use, and the whole correction component can slide under the action of the tension of the lead frame when the lead frame is placed between two guide wheels for correction, so that the lead frame is difficult to achieve the expected correction effect.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides the fixed-point correction jig for the lead frame, so that the device can stably fix the lead frame when in use, and the expected correction effect is achieved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a lead frame fixed point correction tool, includes the base, the spout has been seted up to the base upper surface, the inside rotation of spout is installed two-way lead screw, the outer wall of base corresponds position fixed mounting with two-way lead screw end and has the motor, the output of motor and the terminal fixed connection of two-way lead screw, the outer wall threaded connection of two-way lead screw has two movable blocks that match the setting with the spout, and two movable block symmetry sets up, the up end of two movable blocks rotates and installs the threaded rod, the outer wall threaded connection of threaded rod has the supporting shoe, the outer wall of threaded rod is located the top cover of supporting shoe and is equipped with the grip block, the upper surface of base corresponds the position with two threaded rods and is provided with adjusting part.

Preferably, the adjusting part specifically includes two fixed blocks, two fixed blocks respectively with the both sides outer wall fixed connection of base, rotate between two fixed blocks and install the worm, the outer wall fixed mounting of one of them fixed block has the motor, the output of motor and the terminal fixed connection of worm, the lower extreme of threaded rod corresponds position fixed mounting with the worm and has the turbine, and turbine and worm meshing set up, the lower extreme outer wall of threaded rod is located the below rotation of turbine and is connected with the backup pad, and backup pad and base upper surface sliding connection, the upper surface fixed mounting of backup pad has the gag lever post, the upper end of gag lever post runs through the one end through the supporting shoe and extends to the top of supporting shoe.

Preferably, the upper end face of the limiting rod is flush with the upper end face of the threaded rod.

Preferably, the cross section of the limiting rod is T-shaped, and a side wall surface of the transverse edge of the limiting rod is correspondingly arranged close to the threaded rod.

Preferably, the cross section of the clamping block is rectangular, and the outer wall of the tail end of the clamping block abuts against the outer wall of one side, close to the threaded rod, of the limiting rod.

Preferably, the outer wall of the clamping block is provided with a clamping groove, and the cross section of the clamping groove is V-shaped.

Preferably, the upper end surface of the threaded rod is in threaded connection with an anti-falling block.

Compared with the prior art, the utility model has the following beneficial effects:

This kind of lead frame fixed point correction tool, through motor drive two-way lead screw rotation, can adjust the position of two movable blocks inside the spout under screw drive's effect, and make the movable block can stably stay in the position after the adjustment, can avoid the device when using, lead frame self tension's effect down lead frame leads to the movable block to appear the displacement in the spout, and then influence the device to lead frame's correction effect, and when two grip block centre gripping fixed lead frame, the user can drive motor is further adjusted to the distance between two movable blocks for the device reaches best to the correction effect of the lead frame of deformation.

Drawings

FIG. 1 is a schematic view of the overall structure of the main body of the present utility model;

FIG. 2 is a schematic cross-sectional view of a chute according to the present utility model;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2A in accordance with the present utility model;

FIG. 4 is a schematic view of the movable block structure of the present utility model.

In the figure: 1. a base; 2. a chute; 3. a two-way screw rod; 4. a movable block; 5. a threaded rod; 6. a support plate; 7. a motor; 8. a limit rod; 9. a support block; 10. a clamping block; 11. a motor; 12. a worm; 13. a fixed block; 14. and (3) a turbine.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The technical scheme of the utility model is further described below with reference to the attached drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present utility model are shown.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

Referring to fig. 1-4, a fixed point correction jig for a lead frame comprises a base 1, a chute 2 is formed in the upper surface of the base 1, a bidirectional screw rod 3 is rotatably mounted in the chute 2, a motor 7 is fixedly mounted at the position corresponding to the tail end of the bidirectional screw rod 3 on the outer wall of the base 1, the output end of the motor 7 is fixedly connected with the tail end of the bidirectional screw rod 3, two movable blocks 4 matched with the chute 2 are connected with the outer wall of the bidirectional screw rod 3 in a threaded manner, the two movable blocks 4 are symmetrically arranged, a threaded rod 5 is rotatably mounted on the upper end surfaces of the two movable blocks 4, a supporting block 9 is connected with the outer wall of the threaded rod 5 in a threaded manner, a clamping block 10 is sleeved above the supporting block 9, and an adjusting component is arranged at the position corresponding to the upper surface of the base 1 and the two threaded rods 5.

According to the lead frame fixed-point correction jig provided by the utility model, the main structure of the technical scheme is similar to that of a lead frame deformation correction jig provided by the patent number CN216487995U, when the technical scheme is used, a user can drive the bidirectional screw rod 3 to rotate through the motor 7, the two movable blocks 4 can be driven to adjust the positions of the two movable blocks 4 under the action of screw transmission when the bidirectional screw rod 3 rotates, when the movable blocks 4 move to the corresponding positions, the two ends of the lead frame can be clamped and fixed by the clamping blocks 10 arranged on the outer wall of the threaded rod 5, and the lead frame can be stably stopped at the adjusted positions, so that the two clamping blocks 10 can not move under the action of the self tension of the lead frame, the correction effect of the lead frame can be ensured, and when the two clamping blocks 10 clamp and fix the lead frame, the lead frame can be further adjusted by the motor 7, so that the correction effect of the deformed lead frame is achieved by the device.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the adjusting assembly specifically includes two fixed blocks 13, two fixed blocks 13 are respectively with the both sides outer wall fixed connection of base 1, install worm 12 in the rotation between two fixed blocks 13, the outer wall fixed mounting of one of them fixed block 13 has motor 11, the output of motor 11 and the terminal fixed connection of worm 12, the lower extreme of threaded rod 5 corresponds position fixed mounting with worm 12 and has turbine 14, and turbine 14 and worm 12 meshing setting, the lower extreme outer wall of threaded rod 5 is located turbine 14's below rotation and is connected with backup pad 6, and backup pad 6 and base 1 upper surface sliding connection, the upper surface fixed mounting of backup pad 6 has gag lever post 8, the upper end of gag lever post 8 runs through the one end of passing through supporting block 9 and extends to the top of supporting block 9, when using, motor 11 in the adjusting assembly drives worm 12 rotation, namely when the distance between two movable blocks 4 is adjusted in the rotation to two-way lead screw 3, motor 11 can drive worm 12 synchronous rotation, worm 12 is in the time rotating, in the meshing effect between worm 12 and turbine 14, can drive 5 synchronous rotation 5 and the supporting block 5 and then can be adjusted the clamping frame 10 at the different distance between the different height of two end and the different clamping frame, can be adjusted at the different length between the different clamping frame, the different clamping frame 10 and the different length between the two end and the different clamping frame, the clamping frame can be realized, the different clamping frame length is adjusted at the length between the different height and the clamping frame 10 at the different length between the two end and the clamping frame is realized.

As shown in fig. 1, 2 and 4, the upper end surface of the limit rod 8 is flush with the upper end surface of the threaded rod 5, and the limit rod 8 plays a role in limiting the support block 9, so that the limit rod can be prevented from rotating together with the threaded rod 5, and the height of the limit rod 8 is matched with the displacement of the support block 9 on the threaded rod 5, so that the support block 9 moves to the upper end of the threaded rod 5.

As shown in fig. 1, 2 and 4, the cross section of the stop lever 8 is T-shaped, and a side wall surface of the stop lever 8 corresponding to the lateral edge is close to the threaded rod 5, and the special arrangement of the stop lever 8 can increase the area of the outer wall of the stop lever, so that the contact area between the stop lever and the tail ends of the supporting block 9 and the clamping block 10 can be increased.

As shown in fig. 1, 2 and 4, the cross section of the clamping block 10 is rectangular, and the outer wall of the tail end of the clamping block 10 abuts against the outer wall of one side of the limit rod 8, which is close to the threaded rod 5, and the outer wall of the clamping block 10 abuts against the outer wall of the limit rod 8, so that the threaded rod 5 can be prevented from rotating, and the clamping block 10 can shake to influence the clamping stability of the lead frame.

As shown in fig. 1 and 2, the outer wall of the clamping block 10 is provided with a clamping groove, the cross section of the clamping groove is V-shaped, and the clamping groove can limit the tail end of the lead frame to avoid sliding between the tail end of the lead frame and the outer wall of the clamping block 10.

As shown in fig. 1, 2 and 4, the upper end surface of the threaded rod 5 is in threaded connection with an anti-falling block, and the anti-falling block can prevent the clamping block 10 from continuously moving under the action of the supporting block 9 and then separating from the upper end of the threaded rod 5.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The utility model provides a lead frame fixed point correction tool, includes base (1), and spout (2), its characterized in that have been seted up to base (1) upper surface: the inside rotation of spout (2) is installed two-way lead screw (3), the outer wall of base (1) and the terminal corresponding position fixed mounting of two-way lead screw (3) have motor (7), the output of motor (7) and the terminal fixed connection of two-way lead screw (3), the outer wall threaded connection of two-way lead screw (3) has two movable blocks (4) that match and set up with spout (2), and two movable blocks (4) symmetry sets up, threaded rod (5) are installed in the up end rotation of two movable blocks (4), the outer wall threaded connection of threaded rod (5) has supporting shoe (9), the outer wall of threaded rod (5) is located the top cover of supporting shoe (9) and is equipped with grip block (10), the upper surface of base (1) is provided with adjusting part with two threaded rod (5) corresponding position.

2. The lead frame fixed point correction jig of claim 1, wherein: the adjusting component specifically comprises two fixed blocks (13), the two fixed blocks (13) are fixedly connected with the outer walls of the two sides of the base (1) respectively, a worm (12) is rotatably installed between the two fixed blocks (13), a motor (11) is fixedly installed on the outer wall of one fixed block (13), the output end of the motor (11) is fixedly connected with the tail end of the worm (12), a turbine (14) is fixedly installed at the position, corresponding to the worm (12), of the lower end of the threaded rod (5), the turbine (14) is meshed with the worm (12), the outer wall of the lower end of the threaded rod (5) is located below the turbine (14) and is rotatably connected with a supporting plate (6), the supporting plate (6) is slidably connected with the upper surface of the base (1), a limit rod (8) is fixedly installed on the upper surface of the supporting plate (6), and the upper end of the limit rod (8) penetrates through one end of the supporting block (9) and extends to the upper portion of the supporting block (9).

3. The lead frame fixed point correction jig of claim 2, wherein: the upper end face of the limiting rod (8) is flush with the upper end face of the threaded rod (5).

4. A lead frame fixed point correction jig according to claim 3, wherein: the cross section of the limiting rod (8) is T-shaped, and a side wall surface of the transverse edge of the limiting rod (8) is correspondingly arranged close to the threaded rod (5).

5. The lead frame fixed point correction jig of claim 1, wherein: the cross section of the clamping block (10) is rectangular, and the outer wall of the tail end of the clamping block (10) is propped against the outer wall of one side of the limit rod (8) close to the threaded rod (5).

6. The leadframe setpoint correction fixture of claim 5, wherein: the outer wall of the clamping block (10) is provided with a clamping groove, and the cross section of the clamping groove is V-shaped.

7. A lead frame fixed point correction jig according to claim 3, wherein: the upper end surface threaded connection of threaded rod (5) has the anticreep piece.