CN220533178U - Quick fixing device of upper and lower floor of backward flow tool - Google Patents

Abstract

The utility model relates to a quick fixing device for upper and lower layers of a reflow jig, which comprises a lower layer of the jig and an upper layer of the jig, wherein the upper layer of the jig is arranged at the far end of the lower layer of the jig, brackets are respectively arranged at two sides of the far end of the upper layer of the jig, clamping bodies are rotatably arranged on the brackets, and the two clamping bodies are respectively rotated, so that the near ends of the two clamping bodies are respectively meshed with the two ends of the lower layer of the jig, and the upper layer of the jig is fixedly laminated at the far end of the lower layer of the jig.

Description

Quick fixing device of upper and lower floor of backward flow tool

Technical Field

The utility model relates to the technical field of reflow soldering jigs, in particular to an upper and lower layer quick fixing device of a reflow soldering jig.

Background

Reflow soldering is a conventional process in the semiconductor packaging industry. The purpose of the reflow is to melt the solder and thereby bond the substrate, chip, component, and leadframe together. In order to obtain good reflow quality and reduce the generation of false solder, the reflow jig plays a vital role except reflow equipment and parameters. Referring to fig. 4, the reflow jig generally has an upper layer and a lower layer, and the bottom and top fastening method of the reflow jig in the prior art adopts a threaded connection between the upper layer and the lower layer, which has the following problems:

the manual operation amount is large, at least 4 screws are needed for one set of backflow jig, and in the production stage, operators need to fasten and unfasten the screws for 2000 times each day, so that time and labor are wasted;

secondly, the screw expands with heat and contracts with cold in the process of reflow, so that the screw is easy to be blocked, and the production efficiency is affected;

and thirdly, the screw and fragments thereof are carelessly dropped on a product when the screw is unscrewed and screwed, so that the chip is damaged, and the yield is reduced.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide a quick fixing device for upper and lower layers of a reflow jig, so as to solve one or more problems in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a quick fixing device in upper and lower layers of backward flow tool, is in including the tool lower floor and setting the tool upper strata of tool lower floor distal end, tool upper strata distal end both sides set up the support respectively, rotationally set up the clamp on the support, it is rotatory respectively two the clamp makes two the proximal end of clamp respectively with the both ends interlock of tool lower floor to realize that the tool upper strata is fastened and is fixed at the tool lower floor distal end.

Further, the clamp body comprises a connecting part rotationally connected with the bracket and a first hook part arranged at the proximal end of the connecting part, wherein two sides of the lower layer of the jig are provided with second hook parts engaged with the first hook parts, and when in a compression state, the distance from the distal end of the first hook part to the proximal surface of the upper layer of the jig is smaller than or equal to the distance from the proximal end of the second hook part to the distal surface of the lower layer of the jig, and the inner side surfaces of the two second hook parts are aligned with the side surfaces of the upper layer of the jig.

Further, the length of the first hook part is longer than that of the second hook part.

Further, an elastic piece is arranged between the connecting part and the bracket.

Further, the elastic piece is a high-temperature resistant spring.

Further, a rotating shaft is arranged on the support, and the rotating shaft penetrates through the connecting portion.

Further, the far end of the connecting part is provided with a limiting part.

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

according to the quick fixing device for the upper and lower layers of the reflow jig, the brackets are arranged on two sides of the distal end of the upper layer of the jig, the clamp bodies are rotatably arranged on the brackets, and an operator presses the two clamp bodies to enable the proximal ends of the two clamp bodies to be respectively engaged with the two ends of the lower layer of the jig, so that the upper layer of the jig is laminated and fastened on the distal end of the lower layer of the jig, the structure is simple, the operation is convenient, and the production efficiency and the quality of a finished product are guaranteed.

And (II) a high-temperature resistant elastic piece is arranged between the connecting part and the bracket and is used for resetting the clamp body and keeping the clamp body and the lower layer of the jig in a meshed state, so that the upper and lower layer quick fixing devices of the reflow jig can be reused in a large number.

The distance from the distal end of the first hook part to the surface of the proximal end of the upper layer of the jig in the compressed state is smaller than or equal to the distance from the proximal end of the second hook part to the surface of the distal end of the lower layer of the jig, so that the compressing force is generated between the upper layer of the jig and the lower layer of the jig when the first hook part and the second hook part are engaged; the inner vertical surfaces of the two second hook parts are aligned with the side surface of the upper layer of the jig, so that the upper layer of the jig and the lower layer of the jig can be aligned when the first hook parts and the second hook parts are meshed.

Drawings

Fig. 1 is a schematic structural diagram of a quick fixing device for an upper layer and a lower layer of a reflow jig according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of a quick fixing device for upper and lower layers of a reflow jig according to an embodiment of the utility model.

Fig. 3 is a schematic structural diagram of a quick fixing device for upper and lower layers of a reflow jig according to an embodiment of the utility model.

Fig. 4 shows a schematic structural diagram of an upper and lower fixing device of a reflow jig in the prior art.

The reference numerals in the drawings:

1. the upper layer of the jig; 2. the lower layer of the jig; 21. a second hook portion; 3. a bracket; 4. a clamp body; 41. a connection part; 411. a rotating shaft; 412. an elastic member; 42. a first hook portion; 43. and a limiting part.

Detailed Description

For a better understanding of the utility model with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or essential characteristics thereof.

In the description of the present utility model, the positional or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In order to more clearly describe the structure of the above-mentioned quick fixing device for the upper and lower layers of the reflow jig, the present utility model defines terms "distal end" and "proximal end", specifically, "distal end" means an end far from the surface of the console, and "proximal end" means an end close to the surface of the console, taking fig. 1 as an example, the lower end of the upper layer 1 of the jig in fig. 1 is a proximal end, and the upper end of the upper layer 1 of the jig in fig. 1 is a distal end.

Example 1

Please refer to fig. 1, fig. 2 and fig. 3, a quick fixing device for upper and lower layers of a reflow jig comprises a lower jig layer 2 and an upper jig layer 1 arranged at the far end of the lower jig layer 2, wherein two sides of the far end of the upper jig layer 1 are respectively provided with a bracket 3, a clamp body 4 is rotatably arranged on the bracket 3, and the two clamp bodies 4 are respectively rotated, so that the near ends of the two clamp bodies 4 are respectively engaged with the two ends of the lower jig layer 2, and the upper jig layer 1 is fastened at the far end of the lower jig layer 2 in a pressing manner.

Referring to fig. 1, 2 and 3, further, the clamp body 4 includes a connecting portion 41 rotatably connected to the bracket 3, and a first hook portion 42 disposed at a proximal end of the connecting portion 41, two sides of the lower jig layer 2 are provided with second hook portions 21 engaged with the first hook portions 42, and a distance from a distal end of the first hook portions 42 to a proximal end surface of the upper jig layer 1 in a compressed state is less than or equal to a distance from a proximal end of the second hook portions 21 to a distal end surface of the lower jig layer 2, so that a compressing force is generated between the upper jig layer 1 and the lower jig layer 2 when the first hook portions 42 and the second hook portions 21 are engaged. The inner vertical surfaces of the two second hook portions 21 are aligned with the side surfaces of the upper jig layer 1, so that the upper jig layer 1 and the lower jig layer 2 can be aligned when the first hook portions 42 and the second hook portions 21 are engaged.

Referring to fig. 1, 2 and 3, further, the length of the first hook 42 is longer than that of the second hook 21, so as to prevent the fixing device from thermal expansion and affecting the fixing effect.

Referring to fig. 1, 2 and 3, further, an elastic member 412 is disposed between the connecting portion 41 and the bracket 3, and the elastic member 412 is used for resetting the clamp body 4 and maintaining the engaged state of the clamp body 4 and the lower jig layer 2. Preferably, in the quick fixing device for the upper and lower layers of the reflow jig of the present utility model, the elastic member 412 is a high temperature resistant spring, so as to ensure that the quick fixing device for the upper and lower layers of the reflow jig can be reused in a large number.

Referring to fig. 1, 2 and 3, further, a rotating shaft 411 is disposed on the bracket 3, and the rotating shaft 411 passes through the connecting portion 41.

Referring to fig. 1, 2 and 3, further, a limiting portion 43 is disposed at the distal end of the connecting portion 41, so as to ensure that an operator can grasp the clip body 4.

The specific working procedure of the utility model is as follows:

step 1, please refer to fig. 1, the upper jig layer 1 is placed on the distal surface of the lower jig layer 2, and is simply positioned;

in step 2, please refer to fig. 2, the distal ends of the connecting portions 41 of the two end clamps 4 are pressed by both hands, so that the clamps 4 rotate clockwise around the rotating shaft 411 to be opened, and the upper jig layer 1 and the lower jig layer 2 are attached.

In step 3, please refer to fig. 3, the distal ends of the connecting portions 41 of the two end clamps 4 are released, the elastic force of the elastic member 412 makes the clamps 4 rotate counterclockwise around the rotating shaft 411, the first hook portion 42 of the clamps 4 is engaged with the second hook portion 21 of the lower jig layer 2, and the upper jig layer 1 is aligned with the lower jig layer 2 and pressed and fixed.

In step 4, referring to fig. 2, after the product is reflowed, the distal ends of the connecting portions 41 of the two end clamps 4 are respectively pressed by two hands, so that the clamps 4 are opened by rotating clockwise around the rotating shaft 411.

And 5, removing the upper jig layer 1 to separate the upper jig layer 1 from the lower jig layer 2.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (7)

1. Quick fixing device in upper and lower floor of backward flow tool, its characterized in that: including the tool lower floor and set up the tool upper strata of tool lower floor distal end, tool upper strata distal end both sides set up the support respectively, rotationally set up the clamp on the support, it is rotatory two respectively the clamp makes two the proximal end of clamp respectively with the both ends interlock of tool lower floor to realize that the lamination fastening is fixed at the tool lower floor distal end on the tool.

2. The quick fixing device for upper and lower layers of a reflow jig according to claim 1, wherein: the clamp body comprises a connecting part rotationally connected with the bracket and a first hook part arranged at the proximal end of the connecting part, wherein two sides of the lower layer of the jig are provided with second hook parts engaged with the first hook parts, and when in a compression state, the distance from the distal end of the first hook part to the proximal surface of the upper layer of the jig is smaller than or equal to the distance from the proximal end of the second hook part to the distal surface of the lower layer of the jig, and the inner side surfaces of the two second hook parts are aligned with the side surfaces of the upper layer of the jig.

3. The quick fixing device for upper and lower layers of a reflow jig according to claim 2, wherein: the length of the first hook part is longer than that of the second hook part.

4. The quick fixing device for upper and lower layers of a reflow jig according to claim 2, wherein: an elastic piece is arranged between the connecting part and the bracket.

5. The device for quickly fixing the upper and lower layers of a reflow jig according to claim 4, wherein: the elastic piece is a high-temperature resistant spring.

6. The quick fixing device for upper and lower layers of a reflow jig according to claim 2, wherein: the support is provided with a rotating shaft, and the rotating shaft penetrates through the connecting part.

7. The quick fixing device for upper and lower layers of a reflow jig according to claim 2, wherein: the distal end of the connecting part is provided with a limiting part.