CN220347606U

CN220347606U - Bilateral fixed-position welding frock of dislocation preventing

Info

Publication number: CN220347606U
Application number: CN202323370573.7U
Authority: CN
Inventors: 徐谦
Original assignee: Guangdong Chenglitai Technology Co ltd
Current assignee: Guangdong Chenglitai Technology Co ltd
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2024-01-16
Anticipated expiration: 2033-12-12

Abstract

The utility model relates to the technical field of welding tools, and provides an anti-dislocation bilateral positioning welding tool, which comprises: the backing plate, set up the multirow air vent on the backing plate, multirow air vent is equallyd divide into two sets of, and is formed with connecting portion between two sets of air vents, the air vent is kept away from all be provided with a plurality of locating needle on the backing plate of connecting portion one side and on the connecting portion, be connected with the gusset plate in backing plate bottom fixedly connected with, be connected with four supporting components between bottom plate and gusset plate, when the air vent of needing to set up the backing plate inside is dredged, push down gusset plate, backing plate hard, make supporting component shrink for the thimble runs through inside air vent, through-hole, dredges air vent, through-hole, and after the mediation was accomplished, supporting component automatic extension resets, carries out steady rest to gusset plate, backing plate again.

Description

Bilateral fixed-position welding frock of dislocation preventing

Technical Field

The utility model relates to the technical field of welding tools, in particular to a dislocation-preventing bilateral positioning welding tool.

Background

The frame is used as a chip carrier of an integrated circuit, is a key structural member for realizing the electric connection between the lead-out end of the internal circuit of the chip and the outer lead by means of bonding wires, forms an electric loop, plays a role of a bridge connected with an external lead, and most of semiconductor integrated blocks need to use the chip frame, thus being an important basic material in the electronic information industry. For example, in the high-resistance low-stress chip frame disclosed in the prior patent (publication number: CN 218602426U), the number of stations of the core pieces is increased, more core pieces can be simultaneously produced and processed, the structural strength of the frame is increased by virtue of transverse reinforcing ribs, the distortion during processing can be prevented, the placement stability of the core pieces is improved, and the production efficiency of the frame is improved.

At present, when welding the chip and the chip frame, the chip frame needs to be matched with a tool to use, and most of the existing tools are backing plates with vent holes uniformly formed in the surfaces and used for limiting the installation of the chip frame. But the stability of the whole structure of the existing tool is poor, and when the tool is taken, used, cleaned and the like, the tool is easy to deform and damage. Secondly, after long-time work, the vent hole formed in the tool is easy to be blocked by external dust, scraps generated in the processing process and the like, and the vent hole is slender, so that the blocked vent hole is difficult to clean, and the exhaust work in the subsequent chip processing is seriously influenced.

In view of the above, the utility model provides a dislocation-preventing double-side positioning welding tool.

Disclosure of Invention

The utility model provides a dislocation-preventing bilateral fixed-position welding tool, which solves the problems that the prior tool for installing a chip frame is poor in structural stability and is difficult to dredge a vent hole formed in the chip frame.

The technical scheme of the utility model is as follows: a bilateral fixed-position welding frock of dislocation preventing includes: the chip comprises two chip frames and a base plate for erecting the two chip frames, and is characterized in that a plurality of rows of vent holes are formed in the base plate, the vent holes in the plurality of rows are divided into two groups, a connecting part is formed between the two groups of vent holes, a plurality of positioning pins are arranged on the base plate, which is far away from one side of the connecting part, of the vent holes and on the connecting part, a reinforcing plate is fixedly connected to the bottom of the base plate, a bottom plate is arranged on the lower side of the reinforcing plate, and the bottom plate and the reinforcing plate are parallel to each other; four supporting components are connected between the bottom plate and the reinforcing plate and distributed at four corners of the top of the bottom plate for supporting the reinforcing plate.

Preferably, the chip frame comprises an upper frame and a lower frame which are arranged in parallel, and a plurality of groups of bridge stacks are uniformly arranged on the upper frame and the lower frame.

Preferably, a plurality of first positioning holes and second positioning holes matched with the positioning pins are formed in the upper frame and the lower frame in a penetrating mode.

Preferably, through holes which are consistent in number and correspond to the vent holes one by one are formed in the reinforcing plate in a penetrating mode, and the through holes are communicated with the vent holes.

Preferably, the top end of the bottom plate is fixed with thimble corresponding to the through holes in number one by one, the thimble is vertically arranged, and the central axis of the thimble coincides with the central axis of the through hole and the vent hole right above the thimble.

Preferably, the support assembly comprises a support cylinder fixedly connected to the top end of the bottom plate and a support rod fixedly connected to the bottom end of the reinforcing plate, wherein a second sliding cavity and a first sliding cavity which are distributed up and down are formed in the support cylinder, the second sliding cavity is communicated with the first sliding cavity and is cylindrical, and the diameter of the second sliding cavity is smaller than that of the first sliding cavity.

Preferably, the support rod extends to the inside of the second sliding cavity and is in sliding connection with the second sliding cavity, the section shape of the support rod is inverted T, the bottom end of the support rod is slidably sleeved in the first sliding cavity, and a support spring is fixedly connected between the bottom end of the support rod and the bottom of the first sliding cavity.

The working principle and the beneficial effects of the utility model are as follows: according to the utility model, the plurality of rows of vent holes are formed on the base plate, the plurality of rows of vent holes are uniformly divided into two groups, the connecting part is formed between the two groups of vent holes, a plurality of positioning pins are arranged on the base plate on one side of the vent holes far away from the connecting part and on the connecting part, and a plurality of first positioning holes and second positioning holes matched with the positioning pins are formed on the upper frame and the lower frame in a penetrating way, so that the two sides of the chip frame are fixed, dislocation is avoided, and the stability in welding processing is improved.

According to the utility model, the bottom of the base plate is fixedly connected with the reinforcing plate, so that the structural stability of the base plate can be greatly improved by utilizing the reinforcing plate, the base plate is not easy to distort and deform in the processes of use, cleaning and the like, the service life of the base plate is prolonged, and the through holes formed in the reinforcing plate are communicated with the vent holes formed in the base plate, so that normal ventilation work is not influenced; according to the utility model, the ejector pins which are consistent with the number of the through holes and correspond to each other one by one are fixed at the top end of the bottom plate, the central axes of the ejector pins are coincident with the central axes of the through holes and the through holes which are positioned right above the ejector pins, four supporting components are connected between the bottom plate and the reinforcing plate, the supporting components can stably support the reinforcing plate and the backing plate on the ejector pins, when the through holes which are arranged in the backing plate are required to be dredged, the reinforcing plate and the backing plate are forced to be pressed down, the supporting components are contracted, the ejector pins penetrate through the through holes and the through holes to dredge the through holes and the through holes, and after dredging is completed, the supporting components are automatically stretched and reset to stably support the reinforcing plate and the backing plate again, so that the ejector pins have high use value.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a schematic side structure view of a double-sided positioning welding fixture for preventing dislocation;

FIG. 2 is a schematic top view of a chip frame according to the present utility model;

FIG. 3 is a schematic perspective view of a double-sided positioning welding fixture for preventing dislocation;

FIG. 4 is a schematic perspective view of a reinforcement plate according to the present utility model;

fig. 5 is a schematic view illustrating the structure of the support assembly according to the present utility model.

In the figure: 1. a chip frame; 101. an upper frame; 102. a lower frame; 103. a first positioning hole; 104. a bridge stack; 105. a second positioning hole; 2. a backing plate; 201. a vent hole; 202. a positioning needle; 3. a reinforcing plate; 301. a through hole; 4. a support assembly; 401. a support rod; 402. a support cylinder; 403. a support spring; 404. a first sliding cavity; 405. a second sliding cavity; 5. a bottom plate; 6. and (5) a thimble.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill 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.

Referring to fig. 1, 3 and 4, a double-sided positioning welding fixture for preventing dislocation includes: two chip frames 1 and the backing plate 2 of setting up two chip frames 1, offered the multirow air vent 201 on the backing plate 2, multirow air vent 201 equally divide into two sets of, and be formed with connecting portion between two sets of air vents 201, all be provided with a plurality of locating needle 202 on backing plate 2 and the connecting portion that connecting portion one side was kept away from to air vent 201, be fixedly connected with gusset plate 3 in backing plate 2 bottom, multirow air vent 201 evenly divide into two sets of and evenly distributed on backing plate 2. Through holes 301 which are consistent in number and correspond to the vent holes 201 one by one are formed in the reinforcing plate 3, the through holes 301 are in a communication state with the vent holes 201, and the structural stability of the base plate 2 can be greatly improved by using the reinforcing plate 3, so that the base plate is not easy to distort and deform in the processes of use, cleaning and the like, the service life of the base plate is prolonged, and the through holes 301 are in a communication state with the vent holes 201, so that normal ventilation work cannot be influenced.

Referring to fig. 1, 2 and 3, a chip frame 1 includes an upper frame 101 and a lower frame 102 arranged in parallel, and a plurality of bridge stacks 104 are uniformly arranged between the upper frame 101 and the lower frame 102 for mounting chips. The upper frame 101 and the lower frame 102 are respectively provided with a plurality of first positioning holes 103 and second positioning holes 105 which are matched with the positioning pins 202 in a penetrating way, and the first positioning holes 103 and the positioning pins 202 on the frames are matched with each other and used for fixing the two sides of the chip frame 1, so that dislocation is avoided, and the stability in welding processing is improved.

Referring to fig. 3, 4 and 5, a bottom plate 5 is disposed below the reinforcing plate 3, and the bottom plate 5 and the reinforcing plate 3 are parallel to each other. Four supporting components 4 are connected between the bottom plate 5 and the reinforcing plate 3, and the four supporting components 4 are distributed at four corners of the top of the bottom plate 5 and used for supporting the reinforcing plate 3. The top end of the bottom plate 5 is fixedly provided with thimble 6 which is consistent with the through holes 301 in number and corresponds to the through holes one by one, the thimble 6 is vertically arranged, and the central axis of the thimble 6 coincides with the central axes of the through holes 301 and the vent holes 201 which are positioned right above the thimble 6. The supporting component 4 includes a supporting cylinder 402 fixedly connected to the top end of the bottom plate 5 and a supporting rod 401 fixedly connected to the bottom end of the reinforcing plate 3, a second sliding cavity 405 and a first sliding cavity 404 are formed inside the supporting cylinder 402, the second sliding cavity 405 is communicated with the first sliding cavity 404 and is cylindrical, and the diameter of the second sliding cavity 405 is smaller than that of the first sliding cavity 404. The support rod 401 extends to the inside of the second sliding cavity 405 and is in sliding connection with the second sliding cavity 405, the section of the support rod 401 is in an inverted T shape, the bottom end of the support rod 401 is slidably sleeved in the first sliding cavity 404, and a support spring 403 is fixedly connected between the bottom end of the support rod 401 and the bottom of the first sliding cavity 404. The deformation difficulty of the spring is related to the elastic coefficient K and the elastic modulus, that is, the material, the size and the like of the spring, and when the elastic coefficient K and the elastic modulus are large, the spring is not easy to deform. In this application, the elasticity coefficient K and the elasticity modulus of the supporting spring 403 are larger, and are not easy to deform, so that the supporting force is strong, and the supporting force is enough to provide stable support for the reinforcing plate 3 and the backing plate 2 on the supporting spring, and the normal welding work cannot be affected. Only when needing to dredge the air vent 201 of seting up in backing plate 2, push down gusset plate 3, backing plate 2 by force for bracing piece 401 gliding compresses supporting spring 403, makes thimble 6 run through inside air vent 201, through-hole 301, dredges air vent 201, through-hole 301, guarantees can pass through produced nitrogen gas and hydrogen smoothly in the furnace, prevents that the product from taking place oxidation, improves the plastic envelope effect. After dredging, the reinforcement plate 3 and the backing plate 2 are loosened to be pressed down, the support rod 401 is jacked up by utilizing the good elastic performance of the support springs 403 until the bottom end of the support rod 401 is in contact with the top end of the first sliding cavity 404 to limit, and the reinforcement plate 3 and the backing plate 2 are reset.

Working principle and using flow: when working, two chip frames 1 are paved on the base plate 2, and then the first positioning holes 103 are connected and fixed through the positioning pins 202, so that double-side fixing of the chip frames 1 is realized, dislocation is avoided, and stability in welding processing is improved. After the work is finished, when the ventilation holes 201 formed in the base plate 2 are required to be dredged, the reinforcing plate 3 and the base plate 2 are pressed down forcefully, the supporting rods 401 slide down, the supporting springs 403 are compressed, the ejector pins 6 penetrate through the ventilation holes 201 and the through holes 301, and the ventilation holes 201 and the through holes 301 are dredged. After dredging, the reinforcement plate 3 and the backing plate 2 are loosened to be pressed down, the support rod 401 is jacked up by utilizing the good elastic performance of the support spring 403 until the bottom end of the support rod 401 is in contact with the top end of the first sliding cavity 404 to limit, the reinforcement plate 3 and the backing plate 2 are reset, and the next round of welding processing is continued.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A bilateral fixed-position welding frock of dislocation preventing includes: the chip comprises two chip frames (1) and a base plate (2) for erecting the two chip frames (1), and is characterized in that a plurality of rows of vent holes (201) are formed in the base plate (2), the rows of vent holes (201) are equally divided into two groups, connecting parts are formed between the two groups of vent holes (201), a plurality of positioning pins (202) are arranged on the base plate (2) far away from one side of the connecting parts and on the connecting parts, a reinforcing plate (3) is fixedly connected to the bottom of the base plate (2), a bottom plate (5) is arranged on the lower side of the reinforcing plate (3), and the bottom plate (5) and the reinforcing plate (3) are mutually parallel; four supporting components (4) are connected between the bottom plate (5) and the reinforcing plate (3), and the four supporting components (4) are distributed at four corners of the top of the bottom plate (5) and used for supporting the reinforcing plate (3).

2. The dislocation-preventing double-sided positioning welding fixture as claimed in claim 1, wherein the chip frame (1) comprises an upper frame (101) and a lower frame (102) which are arranged in parallel, and a plurality of groups of bridge stacks (104) are uniformly arranged on the upper frame (101) and the lower frame (102).

3. The double-sided positioning welding fixture for preventing dislocation according to claim 2, wherein a plurality of first positioning holes (103) and second positioning holes (105) matched with the positioning pins (202) are formed in the upper frame (101) and the lower frame (102) in a penetrating manner.

4. The dislocation-preventing double-side positioning welding fixture as claimed in claim 1, wherein through holes (301) which are consistent in number with the vent holes (201) and correspond to each other one by one are formed in the reinforcing plate (3), and the through holes (301) are communicated with the vent holes (201).

5. The dislocation-preventing bilateral fixed-position welding tool according to claim 1, wherein thimble (6) which is consistent with the through holes (301) in number and corresponds to the through holes one by one is fixed at the top end of the bottom plate (5), the thimble (6) is vertically arranged, and the central axis of the thimble (6) coincides with the central axes of the through holes (301) and the vent holes (201) which are positioned right above the thimble.

6. The anti-dislocation bilateral fixed-position welding tool as claimed in claim 1, wherein the supporting component (4) comprises a supporting cylinder (402) fixedly connected to the top end of the bottom plate (5) and a supporting rod (401) fixedly connected to the bottom end of the reinforcing plate (3), a second sliding cavity (405) and a first sliding cavity (404) which are vertically distributed are formed in the supporting cylinder (402), the second sliding cavity (405) is communicated with the first sliding cavity (404) and are cylindrical, and the diameter of the second sliding cavity (405) is smaller than that of the first sliding cavity (404).

7. The dislocation-preventing double-sided fixed-position welding tool as claimed in claim 6, wherein the supporting rod (401) extends into the second sliding cavity (405) and is in sliding connection with the second sliding cavity (405), the cross section of the supporting rod (401) is inverted-T-shaped, the bottom end of the supporting rod (401) is slidably sleeved in the first sliding cavity (404), and a supporting spring (403) is fixedly connected between the bottom end of the supporting rod (401) and the bottom of the first sliding cavity (404).