Metal ceramic package outline semiconductor discrete device manual limiting tool
By designing a manual limit fixture for semiconductor discrete devices with a fixed frame, grippers, and drive components, the problems of cumbersome operation and low precision of traditional fixtures are solved, achieving precise workpiece positioning and stable processing, and improving processing efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIHUA MICROELECTRONICS CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-06-23
AI Technical Summary
In the traditional metal-ceramic packaged semiconductor device processing, existing tooling is cumbersome, inefficient, and lacks precise lifting control and self-locking function. It is also prone to workpiece displacement due to vibration or accidental touch, affecting processing accuracy and stability.
A manual limiting fixture for semiconductor discrete devices was designed, comprising a fixing frame, pressure claws, a placement component, and a driving component. The vertical raising or lowering of the placement component is achieved by the damped rotation of the driving component. Combined with the damping structure and the rigid support of the pressure claws, the workpiece is accurately positioned and prevented from loosening.
It achieves precise lifting control of workpieces under purely manual drive, significantly improving work efficiency, avoiding accidental displacement caused by gravity or vibration, and requires no external air source or electricity, ensuring the stability and accuracy of workpieces during processing.
Smart Images
Figure CN224402080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor technology, specifically to a manual limiting fixture for a metal-ceramic packaged semiconductor discrete device. Background Technology
[0002] In the traditional metal-ceramic packaged semiconductor device processing, the workpiece often needs to be placed in a fixture for positioning and fixation. Existing tooling often uses bolt locking or pneumatically driven grippers for positioning, which is cumbersome, inefficient, or dependent on external air sources. Manually operated positioning mechanisms generally lack precise lifting control and self-locking function, and are prone to workpiece displacement due to vibration or accidental contact, affecting processing accuracy and stability. Utility Model Content
[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore, one objective of this utility model is to provide a manual positioning fixture for metal-ceramic packaged semiconductor discrete devices, comprising:
[0004] Fixture;
[0005] Two sets of pressure claws are respectively located on both sides of the fixing.
[0006] A storage assembly is provided on the fixed frame. The storage assembly can rise or fall vertically, and a fixture containing a workpiece can be placed on the storage assembly.
[0007] A drive assembly, damped and rotatably mounted within the fixed frame, engages with the storage assembly for transmission, adapted to drive the storage assembly to rise or fall, so that the fixture on the storage assembly abuts against or moves away from the two sets of pressure claws; when the drive assembly rotates clockwise, the storage assembly rises vertically, so that the fixture abuts against the two sets of pressure claws; when the drive assembly rotates counterclockwise, the storage assembly falls vertically, so that the fixture moves away from the two sets of pressure claws.
[0008] Preferably, support blocks are provided on both sides of the top of the fixing frame, the height of the support blocks is higher than the top of the fixing frame, and the support blocks are in the shape of "T".
[0009] Preferably, the two sets of pressure claws are respectively disposed on the support blocks on both sides of the fixing frame.
[0010] Preferably, each group of pressure claws has at least two, and the pressure claws in each group are equally spaced on the support block.
[0011] Preferably, the storage component includes:
[0012] A fixing plate, which is disposed on the fixing frame;
[0013] Two racks are vertically arranged on both sides of the bottom of the fixing plate;
[0014] Two sliding grooves are respectively disposed in the two racks and are respectively arranged along the vertical direction of the two racks;
[0015] Two sets of fixing rods are respectively located on both sides of the fixing frame, and the two sets of fixing rods are respectively located in the two sliding grooves and are slidably connected to the sliding grooves.
[0016] Preferably, each group of fixing rods has at least two rods, which are equally spaced on the inner side of the fixing frame.
[0017] Preferably, the fixing plate is provided with a storage slot, one end of which passes through the end face of the fixing plate, and the other end is closed.
[0018] Preferably, the fixing frame is provided with a support plate, which is spaced apart from the bottom of the fixing frame.
[0019] Preferably, the driving component includes:
[0020] A rotating shaft is rotatably disposed within the fixed frame, and both ends of the rotating shaft extend to both sides of the fixed frame, respectively.
[0021] Two gears are respectively mounted on the rotating shaft, and the two gears mesh with the two racks respectively;
[0022] A rotating wheel, the rotating wheel being disposed at the end of the rotating shaft;
[0023] A handle is provided on the side of the wheel.
[0024] Preferably, the end face of the fixing frame is further provided with two spaced locking pins, which are threadedly rotatably connected to the fixing frame and correspond to the rotating shaft.
[0025] The above-described solution of this utility model has at least the following beneficial effects:
[0026] The operator places the fixture containing the workpiece onto the placement component. The drive component is in its initial position, the placement component is in its low position, and the fixture is separated from the pressure claws. Then, the operator rotates the drive component clockwise. The drive component drives the placement component to rise vertically through meshing transmission, pushing the fixture upward until it comes into contact with the two sets of pressure claws. The pressure claws apply vertical downward pressure to the fixture to achieve rigid positioning of the workpiece. Subsequently, external equipment processes the workpiece on the fixture.
[0027] After the workpiece is processed, the drive assembly is rotated counterclockwise. The drive assembly drives the placement assembly to descend vertically through meshing transmission. The fixture is disengaged from the pressure claw limit, and the workpiece can be freely picked up and put in.
[0028] The drive assembly features damped rotation, ensuring that the placement assembly automatically locks at any height, preventing accidental displacement caused by gravity or vibration. It is purely manually driven, requiring no external air or electricity source. The lifting and lowering can be precisely controlled by rotating the drive assembly, significantly improving work efficiency. The rigid contact between the placement assembly and the pressure claw forms a vertical limit, combined with a damping structure to prevent loosening, ensuring that there is no risk of workpiece displacement during processing.
[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0031] Figure 1 This is a schematic diagram of the structure of the manual limiting tooling for metal-ceramic packaged semiconductor discrete devices provided in this embodiment of the utility model;
[0032] Figure 2 This is a structural schematic diagram of the fixing frame provided in an embodiment of this utility model;
[0033] Figure 3 yes Figure 1 A schematic diagram of the AA cross-sectional structure.
[0034] Explanation of icon numbers:
[0035] 1. Fixing frame; 2. Pressure claw; 3. Storage assembly; 4. Drive assembly; 5. Locking pin;
[0036] 101. Support block; 102. Support plate;
[0037] 301. Fixing plate; 302. Rack; 303. Slide groove; 304. Fixing rod;
[0038] 3011, Storage tray;
[0039] 401. Shaft; 402. Gear; 403. Wheel; 404. Handle.
[0040] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0042] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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.
[0043] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0044] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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; and 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 according to the specific circumstances.
[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0046] The following describes in detail, with reference to the accompanying drawings, the manual limiting fixture for the metal-ceramic packaged semiconductor discrete device according to an embodiment of the present invention.
[0047] Please see Figures 1-3 In this embodiment, the device includes: a fixed frame 1; two sets of pressure claws 2, which are respectively disposed on both sides of the fixed frame; a placement assembly 3, which is disposed on the fixed frame 1 and can rise or fall vertically, and a fixture containing a workpiece can be placed on the placement assembly 3; and a drive assembly 4, which is damped and rotatably disposed within the fixed frame 1 and engages with the placement assembly 3 for transmission, so as to drive the placement assembly 3 to rise or fall, so that the fixture on the placement assembly 3 abuts against or moves away from the two sets of pressure claws 2; when the drive assembly 4 rotates clockwise, the placement assembly 3 rises vertically, so that the fixture abuts against the two sets of pressure claws 2; when the drive assembly 4 rotates counterclockwise, the placement assembly 3 falls vertically, so that the fixture moves away from the two sets of pressure claws 2.
[0048] The operator places the fixture containing the workpiece onto the placement component 3. The drive component 4 is in the initial position, the placement component 3 is in the low position, and the fixture is separated from the pressure claws 2. Then the operator rotates the drive component 4 clockwise. The drive component 4 drives the placement component 3 to rise vertically through meshing transmission, pushing the fixture upward until it comes into contact with the two sets of pressure claws 2. The pressure claws 2 apply vertical downward pressure to the fixture to achieve rigid positioning of the workpiece. Subsequently, external equipment processes the workpiece on the fixture.
[0049] After the workpiece is processed, the drive component 4 is rotated counterclockwise. The drive component 4 drives the placement component 3 to descend vertically through meshing transmission. The fixture is disengaged from the pressure claw 2 limit, and the workpiece can be freely picked up and put away.
[0050] The drive assembly 4 rotates with damping to ensure that the placement assembly 3 is automatically locked at any height, avoiding accidental displacement caused by gravity or vibration. It is purely manually driven and does not require an external air source or electricity. The lifting can be precisely controlled by rotating the drive assembly 4, which significantly improves work efficiency. The rigid contact between the placement assembly 3 and the pressure claw 2 forms a vertical limit, which, combined with the damping structure, prevents loosening and ensures that there is no risk of workpiece displacement during processing.
[0051] In this embodiment, support blocks 101 are provided on both sides of the top of the fixing frame 1. The height of the support blocks 101 is higher than the top of the fixing frame 1, and the support blocks 101 are in the shape of "T". Two sets of pressure claws 2 are respectively provided on the support blocks 101 on both sides of the fixing frame 1. Each set of pressure claws 2 is provided with at least two, and each set of pressure claws 2 is provided at equal intervals on the support blocks 101.
[0052] The "T"-shaped support block 101 provides a wide load-bearing surface, significantly improving the torsional resistance of the pressure claw 2 system and preventing the workpiece from tilting under pressure. Each set of pressure claws 2 is evenly spaced on the support block 101, ensuring uniform force distribution on the fixture and eliminating the risk of workpiece deformation caused by local stress concentration. The heightened design of the support block 101 expands the lifting stroke space of the storage assembly 3, which can accommodate thicker fixtures or multi-layer stacked workpieces. The pressure claws 2 are mounted above the top of the fixed frame 1 via the support block 101, ensuring vertical rigidity against the rising fixture and preventing horizontal displacement.
[0053] In this embodiment, the storage assembly 3 includes: a fixing plate 301 disposed on the fixing frame 1; two racks 302, which are vertically disposed on both sides of the bottom of the fixing plate 301; two sliding grooves 303, which are respectively disposed in the two racks 302 and are respectively disposed along the vertical direction of the two racks 302; and two sets of fixing rods 304, which are respectively disposed on both sides of the fixing frame 1 and are respectively disposed in the two sliding grooves 303 and are slidably connected to the sliding grooves 303; each set of fixing rods 304 has at least two rods, which are equally spaced on the inner side of the fixing frame 1.
[0054] The fixed plate 301 of the storage assembly 3 carries the fixture. The racks 302 on both sides of its bottom engage with the gears 402 of the drive assembly 4, converting the rotational motion into vertical lifting. The sliding grooves 303 inside the racks 302 and the fixed rods 304 on the fixed frame 1 form a sliding pair, forcibly restricting the storage assembly 3 to move only in the vertical direction, eliminating the risk of horizontal deviation. When the drive assembly 4 rotates, the gears 402 drive the racks 302 to move vertically, so that the fixed plate 301 lifts and lowers synchronously. The sliding grooves 303 slide along the fixed rods 304, forming a double-track guide system to ensure that the lifting trajectory is absolutely vertical. The fixed rods 304 run through the entire length of the sliding grooves 303, providing continuous support and preventing overturning during lifting. Furthermore, the racks 302 and sliding grooves 303 on both sides are symmetrically distributed, so that the driving force is evenly transmitted to both ends of the fixed plate 301, preventing jamming or wear caused by unilateral force.
[0055] In this embodiment, the fixing plate 301 is provided with a storage groove 3011. One end of the storage groove 3011 passes through the end face of the fixing plate 301, and the other end is closed. The through end allows the fixture to slide in or out quickly from the side, and the closed end forms a physical limit to prevent the fixture from slipping off from the rear end due to inertia or vibration.
[0056] In this embodiment, a support plate 102 is provided inside the fixed frame 1 and is spaced apart from the bottom of the fixed frame 1; the drive assembly 4 includes: a rotating shaft 401, which is rotatably disposed inside the fixed frame 1 and extends to both sides of the fixed frame 1; two gears 402, which are respectively sleeved on the rotating shaft 401 and mesh with two racks 302; a rotating wheel 403, which is disposed at the end of the rotating shaft 401; and a handle 404, which is disposed on the side of the rotating wheel 403.
[0057] The rotating shaft 401 runs through both sides of the fixed frame 1, while the gear 402 and the rack 302 are rigidly meshed. When the handle 404 is manually turned, the torque is transmitted through the rotating wheel 403 to drive the gear 402 on the rotating shaft 401 to mesh with the rack 302, which is converted into the vertical lifting force of the storage component 3. The connection point between the rotating shaft 401 and the fixed frame 1 has built-in damping material (such as polyurethane bushing) to ensure that a constant force is applied during the rotation process, thereby achieving self-locking and preventing it from falling back.
[0058] By rotating the handle 404 clockwise or counterclockwise, the storage assembly 3 is raised or lowered so that the fixture on the storage assembly 3 abuts against the pressure claw 2.
[0059] The aforementioned handle 404 can be replaced with a cylinder or motor for drive, allowing workers to choose between manual or electric drive depending on the actual situation.
[0060] In this embodiment, the end face of the fixing frame 1 is also provided with two spaced locking pins 5. The two locking pins 5 are threadedly connected to the fixing frame 1 and correspond to the rotating shaft 401. When the storage component 3 rises to the required height, the two locking pins 5 can be rotated by the operator or external robotic arm so that the locking pins 5 abut against the rotating shaft 401, thereby ensuring that the rotating shaft 401 no longer rotates. Subsequently, the storage component 3 is processed by external equipment. After the processing is completed, the operator or external robotic arm rotates the two locking pins 5 in the opposite direction so that the two locking pins 5 move away from the rotating shaft 401. Then the drive component 4 can drive the storage component 3 to descend and reset.
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A cermet package outline semiconductor discrete device manual limit fixture, characterized in that, include: Fixture; Two sets of pressure claws are respectively located on both sides of the fixing. A storage assembly is provided on the fixed frame. The storage assembly can rise or fall vertically, and a fixture containing a workpiece can be placed on the storage assembly. A drive assembly, damped and rotatably mounted within the fixed frame, engages with the storage assembly for transmission, adapted to drive the storage assembly to rise or fall, so that the fixture on the storage assembly abuts against or moves away from the two sets of pressure claws; when the drive assembly rotates clockwise, the storage assembly rises vertically, so that the fixture abuts against the two sets of pressure claws; when the drive assembly rotates counterclockwise, the storage assembly falls vertically, so that the fixture moves away from the two sets of pressure claws.
2. The cermet package outline semiconductor discrete device manual positioning tooling of claim 1, wherein, The top of the fixed frame is provided with support blocks on both sides. The height of the support blocks is higher than the top of the fixed frame, and the support blocks are "T" shaped.
3. The cermet package outline semiconductor discrete device manual positioning tooling of claim 2, wherein, The two sets of pressure claws are respectively disposed on the support blocks on both sides of the fixed frame.
4. The cermet package outline semiconductor discrete device manual positioning tooling of claim 3, wherein, Each group of pressure claws has at least two, and the pressure claws in each group are equally spaced on the support block.
5. The cermet package outline semiconductor discrete device manual limit tool of claim 1, wherein, The storage component includes: A fixing plate, which is disposed on the fixing frame; Two racks are vertically arranged on both sides of the bottom of the fixing plate; Two sliding grooves are respectively disposed in the two racks and are respectively arranged along the vertical direction of the two racks; Two sets of fixing rods are respectively located on both sides of the fixing frame, and the two sets of fixing rods are respectively located in the two sliding grooves and are slidably connected to the sliding grooves.
6. The cermet package outline semiconductor discrete device manual positioning tooling of claim 5, wherein, Each set of fixing rods has at least two rods, which are equally spaced on the inner side of the fixing frame.
7. The cermet package outline semiconductor discrete device manual positioning tooling of claim 5, wherein, The fixing plate is provided with a storage slot, one end of which passes through the end face of the fixing plate, and the other end is closed.
8. The cermet package outline semiconductor discrete device manual limit jig of claim 1, wherein, The fixing frame is equipped with a support plate, which is spaced apart from the bottom of the fixing frame.
9. The cermet package outline semiconductor discrete device manual positioning tooling of claim 5, wherein, The driving component includes: A rotating shaft is rotatably disposed within the fixed frame, and both ends of the rotating shaft extend to both sides of the fixed frame, respectively. Two gears are respectively mounted on the rotating shaft, and the two gears mesh with the two racks respectively; A rotating wheel, the rotating wheel being disposed at the end of the rotating shaft; A handle is provided on the side of the wheel.
10. The cermet package outline semiconductor discrete device manual positioning tool of claim 9, wherein, The end face of the fixing frame is also provided with two spaced locking pins. The two locking pins are threadedly rotatably connected to the fixing frame, and the two locking pins correspond to the rotating shaft.