Positioning device for packaging chip

Abstract

The utility model provides a positioning device for packaging a chip, and aims to solve the technical problem that a relatively large error exists when a plurality of driving elements are used for positioning from the periphery of the chip. The positioning device comprises a workbench, the top face of the workbench is provided with four sliding grooves in a cross shape, the middle of the workbench is provided with a concave containing part, and the middle of the containing part is provided with a through hole penetrating through the workbench; the lifting platform is positioned in the placing part; the lifting assembly is arranged at the bottom of the workbench, and the output end of the lifting assembly penetrates through the through hole to be connected with the lifting table; the four positioning pieces are respectively arranged in the four sliding grooves in a sliding manner; and the telescopic assembly is arranged at the bottom of the workbench and connected with one ends of the four positioning pieces, and the telescopic assembly is used for driving the four positioning pieces to synchronously slide in the sliding grooves. According to the positioning device, the chip is positioned through the single driving element, and the positioning device has the advantage of relatively small error.

Description

Technical Field

[0001] The utility model relates to chip production equipment, in particular to a positioning device for packaging chips. Background Art

[0002] The shell used to install semiconductor integrated circuit chips plays the role of placing, fixing, sealing, protecting the chip and enhancing the electrical and thermal performance. It is also a bridge between the internal world of the chip and the external circuit. The contacts on the chip are connected to the pins of the package shell with wires, and these pins are connected to other devices through wires on the printed circuit board.

[0003] The process of installing the chip housing is packaging. Since the chip housing needs to connect to the contacts on the chip, the positioning requirements for the chip are very high. The positioning devices currently used usually use multiple driving elements to position the chip from all sides. The driving structure is relatively complex, and there will be relatively large errors in the operation of multiple driving elements. Utility Model Content

[0004] In view of the technical problem in the prior art that positioning is performed from all sides of a chip by using multiple driving elements, which has a relatively large error, the utility model provides a positioning device for a packaged chip, which positions the chip by using a single driving element, and has the advantage of a relatively small error.

[0005] The technical solution of the utility model is:

[0006] A positioning device for a packaged chip, comprising:

[0007] A workbench, the top surface of which is in a cross shape and is provided with four slide grooves, the middle of which is provided with a concave placement portion, and the middle of the placement portion is provided with a through hole penetrating the workbench;

[0008] A lifting platform, located in the placement portion;

[0009] A lifting component is arranged at the bottom of the workbench, and an output end thereof passes through the through hole and is connected to the lifting platform;

[0010] Four positioning members are slidably disposed in the four sliding grooves respectively;

[0011] The telescopic component is arranged at the bottom of the workbench and connected to one end of the four positioning members. The telescopic component is used to drive the four positioning members to slide synchronously in the slide groove.

[0012] Optionally, a limiting groove is respectively provided around the lifting platform, the four limiting grooves correspond to the four sliding grooves respectively, and the end of the positioning member can slide into the limiting groove.

[0013] Optionally, the telescopic assembly includes:

[0014] A connecting column, one end of which is disposed on the bottom surface of the lifting platform and is slidably disposed in the through hole, and a threaded hole is provided in the connecting column;

[0015] A screw rod is fitted into a threaded hole in the connecting column;

[0016] The lifting motor has an output shaft which is connected to one end of the screw rod and is used to drive the screw rod to rotate.

[0017] Optionally, the through hole is a polygon, and the cross-section of the connecting column is the same as the shape of the through hole.

[0018] Optionally, the telescopic assembly includes:

[0019] A driving disk, rotatably disposed on the bottom surface of the workbench, the driving disk being dynamically connected to the four positioning members;

[0020] The telescopic motor has an output shaft which is connected to the driving disk and is used to drive the driving disk to rotate.

[0021] Optionally, the driving disk is provided with four arc-shaped driving grooves, the positioning member is a U-shaped structure, and one end of the positioning member is slidably disposed in the driving grooves.

[0022] Optionally, the middle portion of the driving disk is a hollow structure, and a connecting piece with an L-shaped cross-section is provided at the bottom of the workbench, and the connecting piece is clamped on the inner ring of the driving disk.

[0023] Optionally, a gear ring is coaxially provided on the driving disc, a gear is meshed on the gear ring, and the gear is coaxially provided on the output shaft of the telescopic motor.

[0024] Optionally, a cushion block is provided on one end of the positioning member away from the telescopic assembly.

[0025] Compared with the prior art, the beneficial effects of the utility model are:

[0026] First, a workbench is set up, and a lifting platform is set on the top surface of the workbench. The lifting platform is driven up or down by the lifting component, so that the chip to be packaged is placed on the lifting platform for positioning operation.

[0027] During the positioning process, four positioning members are arranged and located around the chip respectively, and then the four positioning members are driven by the same telescopic assembly so that the four positioning members move synchronously, thereby achieving the purpose of reducing the positioning error. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0030] Figure 2 It is a three-dimensional structural schematic diagram of the bottom surface of the utility model;

[0031] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0032] Figure 4 It is a bottom view of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the lifting platform;

[0034] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning member. DETAILED DESCRIPTION

[0035] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0036] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0037] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0038] Example:

[0039] See also Figure 1-Figure 6A positioning device for packaging chips includes a support frame, a workbench 1, a lifting platform 2, a lifting assembly, a positioning member 3 and a telescopic assembly. The support frame includes a bottom plate 4 and four support columns 5 arranged on the top of the bottom plate 4, and the top of the support column 5 is provided with a workbench 1.

[0040] The workbench 1 is a square structure, and the top surface of the workbench 1 has four strip-shaped slide grooves 6. The middle part of the workbench 1 has a square placement portion 7, and the placement portion 7 is a concave structure. The four slide grooves 6 are respectively distributed around the placement portion 7, so that the four slide grooves 6 form a cross-shaped structure. In addition, one end of the slide groove 6 is connected to the placement portion 7, and the depth of the slide groove 6 is equal to the depth of the placement portion 7. There is a through hole in the middle of the placement portion 7.

[0041] The lifting platform 2 is a square structure, and the lifting platform 2 is located in the placement portion 7. The lifting assembly is fixed on the bottom plate 4, and the lifting assembly is located at the bottom of the workbench 1. At the same time, the output end of the lifting assembly passes through the through hole and is connected to the bottom of the lifting platform 2. The lifting assembly is used to drive the lifting platform 2 to rise or fall on the workbench 1.

[0042] There are four positioning members 3 slidably arranged in four slide grooves 6, and one end of the positioning member 3 can be placed above the lifting platform 2. The telescopic assembly is located on the bottom surface of the workbench 1, and the telescopic assembly has four output ends, and the other ends of the four positioning members 3 are respectively connected to the four output ends of the telescopic assembly. The telescopic assembly is used to drive the four positioning members 3 to move synchronously on the workbench 1.

[0043] The working principle of this embodiment is to first set up a workbench 1, set up a lifting platform 2 on the top surface of the workbench 1, and drive the lifting platform 2 to rise or fall through the lifting component, so as to facilitate the placement of the chip to be packaged on the lifting platform 2 for positioning operation.

[0044] During the positioning process, four positioning members 3 are provided and located around the chip respectively, and then the four positioning members 3 are driven by the same telescopic assembly so that the four positioning members 3 move synchronously, thereby achieving the purpose of reducing the positioning error.

[0045] In one specific embodiment:

[0046] A limiting groove 8 is respectively provided around the lifting platform 2 and passes through both sides thereof, and the four limiting grooves 8 correspond to the four sliding grooves 6 respectively, and the four limiting grooves 8 are also distributed on the cross-shaped structure formed by the four sliding grooves 6.

[0047] By arranging the limiting grooves 8 around the lifting platform 2, the positioning member 3 can slide into the limiting grooves 8, so that the positioning device can perform positioning operations on chips of smaller sizes.

[0048] In another specific embodiment:

[0049] The telescopic assembly includes a connecting column 9, a screw rod 10 and a lifting motor 11. One end of the connecting column 9 is fixedly arranged on the middle part of the bottom surface of the lifting platform 2, and the connecting column 9 is arranged vertically with the lifting platform 2. A threaded hole is arranged on the other end of the connecting column 9, and the length direction of the threaded hole is consistent with the length direction of the connecting column 9.

[0050] A screw rod 10 is matched in the threaded hole of the connecting column 9, and the bottom end of the screw rod 10 is rotatably connected to the bottom plate 4, and a spur gear is coaxially connected to the bottom end of the screw rod 10. The lifting motor 11 is fixedly connected to the bottom plate 4 through a bracket, and a spur gear is coaxially provided on the output shaft of the lifting motor 11, and the two spur gears are meshed with each other.

[0051] In this embodiment, the lifting motor 11 drives the screw rod 10 to rotate through a pair of spur gears, thereby driving the connecting column 9 and the lifting platform 2 to move in the vertical direction through the thread matching relationship between the screw rod 10 and the connecting column 9.

[0052] Preferably, the connecting column 9 in this embodiment is set to a polygonal structure, and the through hole in the middle of the workbench 1 is also set to a multi-deformable structure, and the shape of the through hole is the same as the cross-sectional shape of the connecting column 9. By setting both the through hole and the connecting column 9 to a polygonal structure, the lifting platform 2 is prevented from rotating during the ascent or descent process.

[0053] In another specific embodiment:

[0054] The telescopic assembly includes a driving disk 12 and a telescopic motor 13, wherein the driving disk 12 is a circular structure, the driving disk 12 is a hollow structure, and the driving disk 12 is rotatably arranged on the bottom surface of the workbench 1, and the axis of the driving disk 12 coincides with the axis of the screw 10 in the above-mentioned lifting assembly.

[0055] A gear ring 14 is coaxially arranged on the driving disc 12 , and a gear 15 is meshed on the gear ring 14 . The gear 15 is coaxially arranged on the output shaft of the telescopic motor 13 , and the telescopic motor 13 is fixedly arranged on the bottom plate 4 .

[0056] Four driving grooves 16 are arranged on the surface of the driving disk 12. The driving grooves 16 are arc-shaped structures, and the bending directions of the four driving grooves 16 are consistent and the four driving grooves 16 are evenly distributed. One end of the driving groove 16 is close to the inner ring of the driving disk 12, and the other end is close to the outer ring of the driving disk 12.

[0057] The positioning member 3 is U-shaped, one section of the positioning member 3 is slidably disposed in the slide groove 6 , and the end of the other section is slidably disposed in the driving groove 16 . Meanwhile, the thickness of the positioning member 3 is equal to the depth of the slide groove 6 .

[0058] In this embodiment, the telescopic motor 13 drives the driving disk 12 to rotate, so that the driving slot 16 drives the positioning member 3 to move along the radial direction of the driving disk 12. Since the four positioning members 3 are respectively arranged in the four driving slots 16, all the positioning members 3 can be driven to move by one telescopic motor 13. Among them, the driving slot 16 on the driving disk 12 is the output end of the telescopic assembly.

[0059] In another specific embodiment:

[0060] A cushion block 17 is provided on one end of the positioning member 3 away from the telescopic assembly, and the cushion block 17 has a certain elasticity. By providing the cushion block 17, it is possible to prevent the end of the positioning member 3 from causing wear to the edge of the chip.

[0061] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A positioning device for a packaged chip, characterized in that: include: A workbench, the top surface of which is in a cross shape and is provided with four slide grooves, the middle of which is provided with a concave placement portion, and the middle of the placement portion is provided with a through hole penetrating the workbench; A lifting platform, located in the placement portion; A lifting component is arranged at the bottom of the workbench, and an output end thereof passes through the through hole and is connected to the lifting platform; Four positioning members are slidably disposed in the four sliding grooves respectively; The telescopic component is arranged at the bottom of the workbench and connected to one end of the four positioning members. The telescopic component is used to drive the four positioning members to slide synchronously in the slide groove.

2. The positioning device for packaged chips according to claim 1, characterized in that: A limiting groove is respectively arranged around the lifting platform, the four limiting grooves correspond to the four sliding grooves respectively, and the end of the positioning member can slide into the limiting groove.

3. The positioning device for packaged chips according to claim 2, characterized in that: The telescopic assembly comprises: A connecting column, one end of which is disposed on the bottom surface of the lifting platform and is slidably disposed in the through hole, and a threaded hole is provided in the connecting column; A screw rod is fitted into a threaded hole in the connecting column; The lifting motor has an output shaft which is connected to one end of the screw rod and is used to drive the screw rod to rotate.

4. The positioning device for packaged chips according to claim 3, characterized in that: The through hole is polygonal, and the cross section of the connecting column is the same as the shape of the through hole.

5. The positioning device for packaged chips according to claim 2, characterized in that: The telescopic assembly comprises: A driving disk, rotatably disposed on the bottom surface of the workbench, the driving disk being dynamically connected to the four positioning members; The telescopic motor has an output shaft which is connected to the driving disk and is used to drive the driving disk to rotate.

6. The positioning device for packaged chips according to claim 5, characterized in that: The driving disc is provided with four arc-shaped driving grooves, the positioning member is a U-shaped structure, and one end of the positioning member is slidably arranged in the driving groove.

7. The positioning device for packaged chips according to claim 6, characterized in that: The middle part of the driving disk is a hollow structure, and a connecting piece with an L-shaped cross section is provided at the bottom of the workbench. The connecting piece is clamped on the inner ring of the driving disk.

8. The positioning device for packaged chips according to claim 6, characterized in that: A gear ring is coaxially arranged on the driving disc, a gear is meshed on the gear ring, and the gear is coaxially arranged on the output shaft of the telescopic motor.

9. The positioning device for packaged chips according to claim 2, characterized in that: A cushion block is provided on one end of the positioning member away from the telescopic assembly.

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