Lead frame with positioning function

Abstract

The utility model provides a lead frame with a positioning function, which comprises a lead frame, an antiskid handle, a transmission screw, a first transmission gear, a transmission chain and a second transmission gear, a bearing plate is fixed on the inner wall of the lead frame, a fixed clamping plate is mounted on the upper end face of the bearing plate, and a fixed seat is mounted on the upper end face of the bearing plate. A transmission box is fixed to the upper end face of the bearing plate, an anti-skid handle is installed on the right end face of the transmission box, a second transmission gear is installed on the rear end face of the anti-skid handle, a transmission screw is rotationally connected between the fixing base and the transmission box, and a first transmission gear is fixed to the outer side of the ring face of the transmission screw. The first transmission gear and the second transmission gear are connected through a transmission chain, the transmission screws are provided with threaded sliding seats in a penetrating mode, and by means of the design, a worker can rotate the two transmission screws at the same time only by screwing an anti-skid handle, so that clamping plates move stably, namely, positioning and fixing of a chip are stable, operation is more convenient, and the fixing effect is good.

Description

Technical Field

[0001] The utility model discloses a lead frame with a positioning function, belonging to the technical field of lead frames. Background Art

[0002] As the chip carrier of integrated circuits, the lead frame is a key structural component that uses bonding materials (gold wire, aluminum wire, copper wire) to achieve electrical connection between the internal circuit lead ends of the chip and the external leads to form an electrical circuit. It serves as a bridge to connect to external wires. Lead frames are required in most semiconductor integrated blocks and are an important basic material in the electronic information industry.

[0003] Chinese Patent No.: CN211629089U, a lead frame with a positioning function, the design scheme can drive the sleeve block to move outward by moving the clamp plate outward, so that the sleeve block stretches the spring, and the spring can lose external force by loosening the clamp plate, driving the sleeve block and the clamp plate to move inward, prompting the clamp plate to clamp the chip, and when the fastening nut is rotated to move inward and in close contact with the sleeve block, the sleeve block, the clamp plate and the chip can be stably positioned and fixed, so that the chip of the integrated circuit can be stably positioned and fixed with the lead frame, preventing the lead frame and the chip from loosening, avoiding affecting the normal operation of the chip, and facilitating wide promotion. However, the staff of this technical scheme cannot operate and rotate two sets of fastening nuts at the same time, resulting in unstable movement of the clamp plate, that is, unstable positioning and fixation of the chip. Now there is an urgent need for a lead frame with a positioning function to solve the above problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a lead frame with a positioning function to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure. The design enables the staff to simultaneously rotate two sets of transmission screws by only twisting the anti-slip handle, so that the movement of the clamp is stable, that is, the positioning and fixation of the chip is stable, which is more convenient to operate and has a good fixing effect.

[0005] In order to achieve the above-mentioned purpose, the utility model is realized by the following technical scheme: a lead frame with a positioning function, comprising a lead frame, an anti-slip handle, a transmission screw, a first transmission gear, a transmission chain and a second transmission gear, a bearing plate is fixed to the inner wall of the lead frame, a fixing clamp is installed on the upper end surface of the bearing plate, and a fixing seat is installed on the upper end surface of the bearing plate;

[0006] A transmission box is fixed on the upper end surface of the carrying plate, an anti-slip handle is installed on the right end surface of the transmission box, and a second transmission gear is installed on the rear end surface of the anti-slip handle. A transmission screw is rotatably connected between the fixed seat and the transmission box, a first transmission gear is fixed on the outer side of the transmission screw ring surface, the first transmission gear and the second transmission gear are connected by a transmission chain, a threaded slide is penetrated by the transmission screw, and a movable splint is fixed between the threaded slides.

[0007] Furthermore, a first bearing seat is disposed inside the fixing seat and the transmission housing, the inner diameter of the first bearing seat is equal to the outer diameter of the transmission screw, and the two are rotatably connected.

[0008] Furthermore, the inner diameter of the threaded sliding seat is equal to the outer diameter of the driving screw, and the two can be rotatably connected in a fitting manner.

[0009] Furthermore, a second bearing seat is arranged inside the transmission housing, the inner diameter of the second bearing seat is equal to the outer diameter of the anti-slip handle, and the two can be rotatably connected in a fitting manner.

[0010] Furthermore, the specifications of the first transmission gear and the second transmission gear are matched with the specifications of the transmission chain, and the transmission chain can be meshed and connected with the first transmission gear and the second transmission gear.

[0011] Furthermore, the first transmission gear, the transmission screw and the threaded slide seat constitute a transmission sliding assembly, and the transmission sliding assembly is provided with two groups, and the composition structure of the two groups of transmission sliding assemblies is the same and they are symmetrically arranged.

[0012] The beneficial effects of the utility model: the utility model is a lead frame with a positioning function. Since the utility model adds an anti-slip handle, a transmission screw, a first transmission gear, a transmission chain and a second transmission gear, the design enables the staff to simultaneously rotate the two sets of transmission screws only by twisting the anti-slip handle, so that the movement of the clamp is stable, that is, the positioning and fixation of the chip is stable, it is more convenient to operate and has a good fixing effect, which solves the problem that the staff in the original lead frame with a positioning function cannot operate and rotate the two sets of fastening nuts at the same time, resulting in unstable movement of the clamp, that is, unstable positioning and fixation of the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a structural diagram of a lead frame with positioning function of the utility model;

[0015] Figure 2This is a partial structural diagram of a lead frame with positioning function of the utility model;

[0016] Figure 3 This is a partial structural diagram of a lead frame with positioning function of the utility model;

[0017] In the figure: 1-lead frame, 2-fixed clamping plate, 3-fixed seat, 4-carrying plate, 5-movable clamping plate, 6-threaded sliding seat, 7-transmission box, 8-anti-slip handle, 9-transmission screw, 10-first transmission gear, 11-transmission chain, 12-second transmission gear. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 3 The utility model provides a technical solution: a lead frame with a positioning function, comprising a lead frame 1, an anti-slip handle 8, a transmission screw 9, a first transmission gear 10, a transmission chain 11 and a second transmission gear 12, a bearing plate 4 is fixed to the inner wall of the lead frame 1, a fixing clamping plate 2 is installed on the upper end surface of the bearing plate 4, and a fixing seat 3 is installed on the upper end surface of the bearing plate 4;

[0020] A transmission box 7 is fixed to the upper end face of the carrying plate 4, and an anti-slip handle 8 is installed on the right end face of the transmission box 7. A second transmission gear 12 is installed on the rear end face of the anti-slip handle 8. A transmission screw 9 is rotatably connected between the fixed seat 3 and the transmission box 7. A first transmission gear 10 is fixed to the outer side of the ring surface of the transmission screw 9. The first transmission gear 10 and the second transmission gear 12 are connected by a transmission chain 11. A threaded slide 6 is set through the transmission screw 9, and a movable splint 5 is fixed between the threaded slides 6. This design allows the staff to simultaneously rotate the two sets of transmission screws 9 by only twisting the anti-slip handle 8, so that the movement of the splint is stable, that is, the positioning and fixation of the chip is stable, it is more convenient to operate and the fixing effect is good.

[0021] As the first embodiment of the utility model: a first bearing seat is provided inside the fixed seat 3 and the transmission housing 7, the inner diameter of the first bearing seat is equal to the outer diameter of the transmission screw 9, and the two can be rotatably connected. This design enables the transmission screw 9 to rotate between the fixed seat 3 and the transmission housing 7, the inner diameter of the threaded slide 6 is equal to the outer diameter of the transmission screw 9, and the two can be fitted and rotatably connected. This design allows the threaded slide 6 to drive the movable clamp 5 to move left and right as the transmission screw 9 rotates, thereby clamping chips of different specifications;

[0022] A second bearing seat is arranged inside the transmission box 7. The inner diameter of the second bearing seat is equal to the outer diameter of the anti-slip handle 8, and the two can be fitted and rotatably connected. The specifications of the first transmission gear 10 and the second transmission gear 12 match the specifications of the transmission chain 11, and the transmission chain 11 can be meshed and connected with the first transmission gear 10 and the second transmission gear 12. The first transmission gear 10, the transmission screw 9 and the threaded slide 6 constitute a transmission sliding assembly. The transmission sliding assembly is provided with two groups. The composition structure of the two groups of transmission sliding assemblies is the same and symmetrically arranged. This design allows the staff to rotate the second transmission gear 12 by twisting the anti-slip handle 8. The rotation of the second transmission gear 12 drives the two groups of first transmission gears 10 to rotate due to the existence of the transmission chain 11, and then drives the two groups of transmission screws 9 to rotate, so that the two groups of transmission screws 9 can drive the movable splint 5 to move left and right by rotation, so that the movement of the movable splint 5 is more stable, thereby improving the fixing effect of the chip.

[0023] As the second embodiment of the utility model: the staff first turns the anti-slip handle 8 to allow the second transmission gear 12 to rotate. The rotation of the second transmission gear 12 drives the two groups of first transmission gears 10 to rotate due to the existence of the transmission chain 11, and then drives the two groups of transmission screws 9 to rotate. As the transmission screw 9 rotates, the transmission screw 9 can be rotatably connected with the threaded slide 6, so that the rotation of the two groups of transmission screws 9 drives the movable splint 5 to move to the right. At this time, the chip is placed on the carrier plate 4, and the anti-slip handle 8 is turned in the opposite direction to allow the second transmission gear 12 to rotate in the opposite direction. The rotation of the second transmission gear 12 drives the two groups of first transmission gears 10 to rotate in the opposite direction due to the existence of the transmission chain 11, and then drives the two groups of transmission screws 9 to rotate in the opposite direction. As the transmission screw 9 rotates in the opposite direction, the transmission screw 9 can be rotatably connected with the threaded slide 6, so that the movable splint 5 moves to the left, thereby positioning and fixing the chip.

[0024] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0025] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as screws, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0026] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lead frame with a positioning function, comprising a lead frame, an anti-slip handle, a transmission screw, a first transmission gear, a transmission chain and a second transmission gear, characterized in that: A bearing plate is fixed to the inner wall of the lead frame, a fixing clamp is installed on the upper surface of the bearing plate, and a fixing seat is installed on the upper surface of the bearing plate; A transmission box is fixed on the upper end surface of the carrying plate, an anti-slip handle is installed on the right end surface of the transmission box, and a second transmission gear is installed on the rear end surface of the anti-slip handle. A transmission screw is rotatably connected between the fixed seat and the transmission box, a first transmission gear is fixed on the outer side of the transmission screw ring surface, the first transmission gear and the second transmission gear are connected by a transmission chain, a threaded slide is penetrated by the transmission screw, and a movable splint is fixed between the threaded slides.

2. The lead frame with positioning function according to claim 1, characterized in that: The fixing seat and the transmission housing are both provided with a first bearing seat, the inner diameter of the first bearing seat is equal to the outer diameter of the transmission screw, and the two are rotatably connected.

3. The lead frame with positioning function according to claim 1, characterized in that: The inner diameter of the threaded sliding seat is equal to the outer diameter of the driving screw, and the two can be fitted and rotatably connected.

4. The lead frame with positioning function according to claim 1, characterized in that: A second bearing seat is arranged inside the transmission housing, the inner diameter of the second bearing seat is equal to the outer diameter of the anti-slip handle, and the two can be rotatably connected in a fitting manner.

5. The lead frame with positioning function according to claim 1, characterized in that: The specifications of the first transmission gear and the second transmission gear both match the specifications of the transmission chain, and the transmission chain can be meshed and connected with the first transmission gear and the second transmission gear.

6. The lead frame with positioning function according to claim 1, characterized in that: The first transmission gear, the transmission screw and the threaded slide seat constitute a transmission sliding assembly. The transmission sliding assembly is provided in two groups. The two groups of transmission sliding assemblies have the same composition structure and are symmetrically arranged.

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