CN207927041U - Localization tool - Google Patents

Abstract

The utility model provides a positioning jig for positioning a field effect tube, comprising a bearing part and a positioning part arranged on the bearing part, the bearing part is provided with a limiting member for limiting the positioning part , the positioning part is provided with a matching part adapted to the limiting part, the limiting part is clamped with the fitting part, and the positioning part is provided with a positioning hole spaced apart from the fitting part so that the pins of the field effect tube placed on the carrying part pass through the positioning hole to position the field effect tube. The utility model improves the assembly precision of the field effect tube and reduces the rework rate of the field effect tube.

Description

Positioning fixture

technical field

The utility model relates to a positioning jig, in particular to a positioning jig for a field effect tube.

Background technique

Generally, the field effect tube is combined by soldering the pins and the circuit board. The pins of the field effect tube have many styles, such as straight pins, K pins, S pins, etc. During the assembly process of vehicle power supply products, some field effect tube pins are first assembled on the substrate, and then assembled to the circuit board. This process needs to ensure that when the circuit board is subsequently assembled, the pins of the field effect tube must be in line with the circuit board. Corresponds to the screen printing hole of the FET tube. However, at present, when FETs are assembled, the shape-defining fixture of the FET needs to be limited on the FET body, and then the locking bar will position the FET. After the FET is assembled, the shape-defining fixture needs to be removed from the lock When it is taken out from the bead, there is a bump in the process, which leads to the misalignment of the field effect tube, poor assembly accuracy, and high rework rate of the field effect tube.

Utility model content

The purpose of the utility model is to provide a positioning jig, which improves the assembly accuracy of the field effect tube and reduces the rework rate of the field effect tube.

The utility model provides a positioning jig for positioning a field effect tube, comprising a bearing part and a positioning part arranged on the bearing part, the bearing part is provided with a limiting member for limiting the positioning part , the positioning part is provided with a matching part adapted to the limiting part, the limiting part is clamped with the fitting part, and the positioning part is provided with a positioning hole spaced apart from the fitting part so that the pins of the field effect tube placed on the carrying part pass through the positioning hole to position the field effect tube.

Wherein, the limiting member includes several first hollow columns, the positioning portion includes a positioning frame, the fitting member includes several first through holes through which the first hollow columns pass, and the first A through hole is provided in the positioning frame, and the first hollow column passes through the first through hole to clamp the positioning frame on the bearing part.

Wherein, the bearing part includes a base plate and brackets arranged on opposite sides of the base plate, the base plate is provided with a second hollow column, and several hollow columns for the second hollow column and the first bolts are provided in the bracket. through the second through hole through which the second hollow column passes through the second through hole to pre-position the bracket, and the first bolt passes through the second through hole to connect the bracket with the bottom plate lock tight.

Wherein, the positioning jig further includes a first locking part, a groove is provided in the bottom plate, and the first locking part is used to lock the field effect tube in the groove.

Wherein, the first locking part includes a first bead and a second bolt, a third through hole is provided in the first bead, and the second bolt passes through the third through hole to connect the first bead Lock with the bottom plate.

Wherein, the limiting member includes several limiting slots, the positioning portion includes two positioning plates, the fitting includes a positioning column that can be inserted into the limiting slot, and the positioning column is arranged on the positioning plate The positioning column is inserted into the limiting slot on opposite sides of the positioning plate to hold the positioning plate on the bearing part.

Wherein, the bearing part includes a bottom plate and a boss provided on the bottom plate, and the limiting groove is arranged in the boss.

Wherein, the positioning jig includes a second locking part, the bottom plate is provided with convex parts, and there is a gap between the convex parts, and the second locking part locks the field effect tube to the in the gap.

Wherein, the second locking part includes a second bead and a third bolt, a fourth through hole is provided in the second bead, and the third bolt passes through the fourth through hole to connect the second bead Lock with the protrusion.

Wherein, the positioning plate is provided with a grasping portion, and the grasping portion is used for picking and placing the positioning plate.

To sum up, the positioning jig of the utility model realizes the pre-positioning of the positioning part through the clamping of the limiting part and the matching part, and then determines the position of the positioning hole of the positioning part; by adjusting the position of the field effect tube so that the field The pins of the effect tube pass through the positioning hole, so that the position of the field effect tube is determined, which facilitates the subsequent installation of the field effect tube on the circuit board, improves the assembly accuracy of the field effect tube, and reduces the rework rate.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic structural view of a positioning jig according to the first embodiment of the present invention.

FIG. 2 is a schematic structural diagram of the positioning frame shown in the embodiment of FIG. 1 .

Fig. 3 is a schematic structural view of the positioning jig of the second embodiment of the present invention.

Fig. 4 is a schematic structural view of the positioning plate shown in the embodiment of Fig. 3 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1 and Fig. 2, the utility model provides a kind of positioning jig, is used for the positioning of field effect tube 10, comprises carrying part 20 and the positioning part 30 that is arranged on carrying part 20, and carrying part 20 is provided with limiter. The position limiting part 40 of the positioning part 30, the positioning part 30 is provided with a matching part 304 adapted to the limiting part 40, the limiting part 40 is clamped with the matching part 304, and the positioning part 30 is provided with a spacer from the matching part 304. The positioning hole 301 is provided so that the pins of the field effect transistor 10 placed on the carrying part 20 pass through the positioning hole 301 to position the field effect transistor 10 . The positioning fixture of the present utility model realizes the pre-positioning of the positioning part 30 through the clamping of the limiting part 40 and the matching part 304, and then determines the position of the positioning hole 301 of the positioning part 30; by adjusting the position of the field effect tube 10 so that The pins of the field effect transistor 10 pass through the positioning hole 301, and then the position of the field effect transistor 10 is determined, which facilitates the subsequent installation of the field effect transistor 10 on the circuit board, improves the assembly accuracy of the field effect transistor 10, and reduces the rework rate.

In the first embodiment of the present utility model, the limiting member 40 includes several first hollow columns 401, the positioning part 30 includes a positioning frame 302, and the matching member 304 includes several first through holes through which the first hollow columns 401 pass. The hole 303 and the first through hole 303 are set on the positioning frame 302 , and the first hollow column 401 passes through the first through hole 303 to pre-locate the positioning frame 302 on the bearing part 20 . In this embodiment, the positioning frame 302 includes two sets of support arms arranged oppositely, and the support arms are connected in sequence to form a "back" shaped frame. The first hollow column 401 is a copper hollow column. In this application, the shape of the positioning frame 302 is not limited, as long as the purpose of the utility model can be achieved. The utility model realizes that the positioning frame 302 is pre-positioned on the bearing part 20 through the clamping of the first hollow column 401 and the first through hole 303, and then the position of the positioning hole 301 of the positioning frame 302 is determined; by adjusting the position of the field effect tube 10 position so that the pins of the field effect tube 10 pass through the positioning hole 301, and then the position of the field effect tube 10 is determined, which facilitates the installation of the subsequent field effect tube 10 on the circuit board, improves the assembly accuracy of the field effect tube 10, and reduces the rework rate.

The bearing portion 20 includes a base plate 201 and supports 202 arranged on the opposite sides of the base plate 201. The base plate 201 is provided with a second hollow column 203, the first hollow column 401 is located on the support 202, and the support 202 is provided with several for the second Hollow column 203 and the second through hole (not shown) that the first bolt 60 passes through, the second hollow column 203 passes through the second through hole to pre-position bracket 202, the first bolt 60 passes through the second through hole The holes lock the bracket 202 to the bottom plate 201 . In this embodiment, the second hollow column 203 is a copper hollow column. Specifically, the bracket 202 is provided with several second through holes and the first hollow column 401 arranged at intervals, the second through hole is used for the second hollow column 203 to pass through to pre-position the bracket 202 on the bottom plate 201, and the second through hole The hole is used for passing the first bolt 60 to lock the bracket 202 on the base plate 201 , and the first hollow post 401 is used for passing through the first through hole 303 of the positioning frame 302 to limit the positioning frame 302 . The second hollow column 203 of the present utility model realizes presetting the support 202 on the base plate 201, and the first bolt 60 realizes locking the support 202 on the base plate 201, and then the position of the first hollow column 401 on the support 202 is determined. When the positioning frame 302 is predetermined on the first hollow column 401 through the first through hole 303, the position of the positioning frame 302 is determined, and then the position of the positioning hole 301 is determined. By adjusting the field effect tube 10, the pins of the field effect tube 10 are passed through Through the positioning hole 301, the position of the field effect transistor 10 can be determined, which facilitates subsequent installation of the field effect transistor 10 on the circuit board.

In this embodiment, the positioning jig further includes a first locking portion 70 , a groove 204 is provided in the base plate 201 , and the first locking portion 70 is used to lock the field effect transistor 10 in the groove 204 .

The first locking part 70 includes a first bead 701 and a second bolt 702, the first bead 701 is provided with a third through hole (not shown in the figure), the second bolt 702 passes through the third through hole to connect the first bead 701 is locked with the bottom plate 201. Specifically, the bottom plate 201 is provided with a groove 204, the field effect transistor 10 is placed in the groove 204, the opposite sides of the first bead 701 are provided with a third through hole, and the second bolt 702 passes through the third through hole to connect the field The effect tube 10 is locked in the groove 204 . The first locking part 70 of the utility model realizes fixing the field effect tube 10 after adjusting the position of the field effect tube 10 by locking the field effect tube 10 in the groove 204, which facilitates subsequent installation of the field effect tube 10. Being arranged on the circuit board, the assembly accuracy of the field effect tube 10 is improved and the rework rate is reduced.

In use, the second hollow column 203 passes through the second through hole to pre-position the bracket 202 on the bottom plate 201 , and the first bolt 60 passes through the second through hole to lock the bracket 202 on the bottom plate 201 . The field effect tube 10 is placed in the groove 204 on the bottom plate 201, and the positioning frame 302 is pre-positioned on the first hollow column 401 through the first through hole 303, and the field effect tube 10 is adjusted so that the tube of the field effect tube 10 The feet pass through the positioning hole 301 of the positioning frame 302 , and then the position of the field effect tube 10 is determined, and then the second bolt 702 is passed through the third through hole of the first bead 701 to lock the field effect tube 10 in the groove 204 .

The second hollow column 203 of the utility model realizes the pre-positioning of the support 202, the first bolt 60 realizes locking the support 202 on the bottom plate 201, and then the position of the first hollow column 401 is determined, and the positioning frame 302 is passed through the first pass. The hole 303 is sleeved on the first hollow column 401 to determine the position of the positioning frame 302, the position of the positioning hole 301 is determined, and the pins of the field effect tube 10 pass through the positioning hole 301 to determine the position of the field effect tube 10. A locking part 70 can fix the field effect tube 10 after adjusting the position of the field effect tube 10 by locking the field effect tube 10 in the groove 204, so that the subsequent field effect tube 10 can be installed on the circuit board. , the assembly progress of the field effect tube 10 is improved, and the rework rate is reduced.

Please refer to FIG. 3 and FIG. 4 , in the second embodiment of the present utility model, the limiting member 40 includes several limiting grooves 402 , the positioning part 30 includes two positioning plates 305 , and the fitting 304 includes insertable limiting grooves 402 The positioning posts 306 are arranged on opposite sides of the positioning plate 305 , and the positioning posts 306 are inserted into the limiting slots 402 to hold the positioning plate 305 on the bearing portion 20 . In this embodiment, the positioning plate 305 is a bar shape. In this application, the shape of the positioning plate 305 is not limited, as long as the purpose of the utility model can be achieved.

The utility model realizes that the positioning plate 305 is pre-positioned on the bearing part 20 through the clamping of the positioning column 306 and the limiting groove 402, and then the position of the positioning hole 301 of the positioning plate 305 is determined; by adjusting the position of the field effect tube 10 so that The pins of the field effect transistor 10 pass through the positioning hole 301, and then the position of the field effect transistor 10 is determined, which facilitates the subsequent installation of the field effect transistor 10 on the circuit board, improves the assembly accuracy of the field effect transistor 10, and reduces the rework rate.

The carrying portion 20 includes a base plate 201 and a boss 205 disposed on the base plate 201 , and the limiting groove 402 is disposed in the boss 205 . Specifically, the protrusions 205 are disposed on the edge of the bottom plate 201 , and each protrusion 205 is provided with a limiting groove 402 for inserting the positioning post 306 to limit the positioning plate 305 to the protrusion 205 . The utility model realizes that the positioning plate 305 is limited in the boss 205 through the clamping of the limiting groove 402 and the positioning column 306, and then the position of the positioning hole 301 in the positioning plate 305 is determined. By adjusting the field effect tube 10, the field effect The pins of the tube 10 pass through the positioning hole 301 , so that the position of the field effect tube 10 can be determined, which facilitates subsequent installation of the field effect tube 10 on the circuit board.

In this embodiment, the positioning jig includes a second locking part 80, and the bottom plate 201 is provided with convex parts 206, and there is a gap 90 between the convex parts 206, and the second locking part 80 locks the field effect tube 10 in the gap. 90 in.

The second locking part 80 includes a second bead 801 and a third bolt 802, the second bead 801 is provided with a fourth through hole (not shown in the figure), the third bolt 802 passes through the fourth through hole to connect the second bead 801 is locked with the protrusion 206 . Specifically, the opposite sides of each field effect tube 10 are provided with an equal number of symmetrically arranged convex portions 206, and the oppositely disposed convex portions 206 form a gap 90, and the field effect tube 10 is placed in the gap 90, and the second bead 801 A fourth through hole is provided on opposite sides, and the third bolt 802 passes through the fourth through hole to lock the field effect transistor 10 in the gap 90 . The second locking part 80 of the utility model realizes fixing the field effect tube 10 after adjusting the position of the field effect tube 10 by locking the field effect tube 10 in the gap 90, which is convenient for the subsequent installation of the field effect tube 10 On the circuit board, the assembly accuracy of the field effect transistor 10 is improved, and the rework rate is reduced.

Please refer to FIG. 4 , the positioning plate 305 is provided with a gripping portion 307 for picking and placing the positioning plate 305 . Specifically, the gripping part 307 is arranged on the side of the positioning plate 305 away from the positioning column 306, and is arranged at the approximate middle position of the positioning plate 305. Hold in the limiting groove 402 or take out the positioning plate 305 from the limiting groove 402.

When in use, the field effect tube 10 is placed in the gap 90 between the protrusions 206, and the positioning plate 305 is pre-positioned on the boss 205 through the holding of the positioning column 306 and the limiting groove 402, and the field effect tube 10 is adjusted to Make the pins of the field effect tube 10 pass through the positioning hole 301 of the positioning plate 305, and then the position of the field effect tube 10 is determined, and then pass the third bolt 802 through the fourth through hole of the second bead 801 to lock the field effect tube 10 Tight in the gap 90.

The utility model realizes that the positioning plate 305 is pre-positioned on the bottom plate 201 through the clamping of the positioning column 306 and the limiting groove 402, and then the position of the positioning hole 301 is determined, and the pins of the field effect tube 10 pass through the positioning hole 301 to realize the field The position of the effect tube 10 is determined, and the second locking part 80 locks the field effect tube 10 in the gap 90, so that after adjusting the position of the field effect tube 10, the field effect tube 10 is fixed, which is convenient for subsequent field effect tubes. 10 is installed on the circuit board, which improves the assembly progress of the field effect tube 10 and reduces the rework rate.

What is disclosed above is only a preferred embodiment of the utility model, and of course it cannot be used to limit the scope of rights of the utility model. Those of ordinary skill in the art can understand all or part of the process of realizing the above-mentioned embodiments, and according to the utility model The equivalent changes made by the claims still belong to the scope covered by the utility model.

Claims (10)

1. a kind of localization tool, for the positioning to field-effect tube, which is characterized in that including supporting part and be set to the carrying Positioning region in portion, the supporting part are equipped with the locating part for limiting the positioning region, and the positioning region is equipped with and the limit The counterpart of position part adaptation, the locating part and the counterpart clamping, the positioning region are equipped with and the counterpart interval The location hole of setting, so that the pin for the field-effect tube being placed on the supporting part passes through the location hole described to position Field-effect tube.

2. localization tool according to claim 1, which is characterized in that the locating part includes several first open tubular columns, institute It includes a posting to state positioning region, and the counterpart includes the several first through hole passed through for first open tubular column, and described the One through-hole is set in the posting, and first open tubular column passes through the first through hole described the posting to be fastened in On supporting part.

3. localization tool according to claim 2, which is characterized in that the supporting part include bottom plate and be set to the bottom plate The holder of opposite sides, the bottom plate are equipped with the second open tubular column, be equipped in the holder it is several for second open tubular column with And for the second through-hole that the first bolt passes through, second open tubular column passes through second through-hole to be pre-positioned the holder, institute The first bolt is stated to lock the holder and the bottom plate across second through-hole.

4. localization tool according to claim 3, which is characterized in that the localization tool further includes the first tight lock part, institute It states and is equipped with groove in bottom plate, first tight lock part is for the field-effect tube to be lock onto in the groove.

5. localization tool according to claim 4, which is characterized in that first tight lock part includes the first press strip and the Two bolts, third through-hole is equipped in first press strip, and second bolt passes through the third through-hole by first press strip It is locked with the bottom plate.

6. localization tool according to claim 1, which is characterized in that the locating part includes several limiting slots, described fixed Position portion includes two positioning plates, and the counterpart includes the positioning column that can be inserted into the limiting slot, and the positioning column is set to described The opposite sides of positioning plate, the positioning column are inserted into the limiting slot so that the positioning plate to be fastened on the supporting part.

7. localization tool according to claim 6, which is characterized in that the supporting part include bottom plate and be set to the bottom plate On boss, the limiting slot be set to the boss in.

8. localization tool according to claim 7, which is characterized in that the localization tool includes the second tight lock part, described Bottom plate is equipped with protrusion, has gap between the protrusion, second tight lock part by the field-effect tube lock onto it is described between In gap.

9. localization tool according to claim 8, which is characterized in that second tight lock part includes the second press strip and the Three bolts, fourth hole is equipped in second press strip, and the third bolt passes through the fourth hole by second press strip It is locked with the protrusion.

10. localization tool according to claim 9, which is characterized in that the positioning plate is equipped with grasping part, the grasping Portion is for picking and placeing the positioning plate.