CN213857528U

CN213857528U - Power transistor fixing device

Info

Publication number: CN213857528U
Application number: CN202022484352.2U
Authority: CN
Inventors: 蔡晓雄
Original assignee: Shanghai Sx Microelectronics Co ltd
Current assignee: Shanghai Sx Microelectronics Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-03
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a power transistor fixing device belongs to fixing device technical field. It includes the screw rod, and the bottom fixedly connected with punch holder of screw rod, the below of punch holder are provided with the lower plate, and first adjusting bolt has been cup jointed to the upper plate upper thread, and first adjusting bolt's bottom is rotated with the top of lower plate and is connected, is provided with the slide bar through adjustment mechanism on the screw rod, and the slide bar horizontal direction sets up, and slides on the slide bar and cup joints the sliding sleeve, and the bottom of sliding sleeve is provided with anchor clamps. The utility model discloses an upper plate and lower plate can be fixed in the edge of printing plate, then adjust the height and the horizontal direction position of anchor clamps to fix power transistor, make its location height accuracy error-free when welding power transistor, easy dismounting simultaneously only needs the tight regulation bolt can, improved production efficiency effectively.

Description

Power transistor fixing device

Technical Field

The utility model relates to a power transistor fixing device belongs to fixing device technical field.

Background

The power transistor often needs to be raised when welding on the printed circuit board, make it and casing in close contact with, be used for the heat dissipation, but power transistor raises the not good accurate control of welded height, lead to the transistor to raise and have the height error between welding back and the casing, thereby cause the transistor can not with casing in close contact with, welding process need adjust the height repeatedly, low in production efficiency, through the retrieval, a fixed transistor welding height's of patent No. CN201920052366.1 positioner, utilize fixed block and step piece to play the effect of fixed transistor height, its location height accuracy is error-free when welding the transistor, but the device need use screw or screw when using, every welding all need screw and loosen the screw, it is troublesome.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: the power transistor fixing device solves the problem that when the device is used, screws or screws are needed, and the screws need to be screwed and loosened every time welding is carried out, so that the device is troublesome.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

the utility model provides a power transistor fixing device, includes the screw rod, the bottom fixedly connected with punch holder of screw rod, the below of punch holder is provided with the lower plate, first adjusting bolt has been cup jointed to the last screw thread of punch holder, first adjusting bolt's bottom is rotated with the top of lower plate and is connected, be provided with the slide bar through adjustment mechanism on the screw rod, the slide bar horizontal direction sets up, and slides on the slide bar and has cup jointed the sliding sleeve, the bottom of sliding sleeve is provided with anchor clamps.

As a preferable example, the adjusting mechanism comprises a threaded sleeve and a connecting plate, the threaded sleeve is in threaded sleeve connection with the screw, the connecting plate is in rotating sleeve connection with the outer wall of the threaded sleeve, and one end of the connecting plate is fixedly connected with one end of the sliding rod.

As a preferable example, the device further comprises a limiting rod, the limiting rod is sleeved with the connecting plate in a sliding mode, and the bottom of the limiting rod is fixedly connected with the upper clamping plate.

As a preferred example, the clamp comprises a fixed plate, a connecting rod, a spring and two clamping plates, wherein the fixed plate is fixedly connected with the sliding sleeve, the connecting rod is sleeved with the fixed plate in a sliding manner, one of the clamping plates is fixedly connected with the sliding sleeve, the other clamping plate is fixedly connected with the connecting rod, and the spring is fixedly connected with the fixed plate together.

As a preferable example, a soft cushion is fixedly connected to one side of each of the two clamping plates, which is close to each other.

As a preferable example, a second adjusting bolt for limiting sliding is fixedly connected to the sliding sleeve.

The utility model has the advantages that: the utility model discloses an upper plate and lower plate can be fixed in the edge of printing plate, then adjust the height and the horizontal direction position of anchor clamps to fix power transistor, make its location height accuracy error-free when welding power transistor, easy dismounting simultaneously only needs the tight regulation bolt can, improved production efficiency effectively.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic cross-sectional view of an adjustment mechanism.

In the figure: the device comprises a lower clamping plate 1, an upper clamping plate 2, a limiting rod 3, a first adjusting bolt 4, a screw rod 5, a connecting plate 6, a threaded sleeve 7, a sliding rod 8, a second adjusting bolt 9, a sliding sleeve 10, a clamping plate 11, a soft cushion 12, a spring 13 and a connecting rod 14.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-3, a power transistor fixing device comprises a screw rod 5, wherein an upper clamping plate 2 is fixedly connected to the bottom of the screw rod 5, a lower clamping plate 1 is arranged below the upper clamping plate 2, a first adjusting bolt 4 is sleeved on the upper clamping plate 2 in a threaded manner, the bottom of the first adjusting bolt 4 is rotatably connected with the top of the lower clamping plate 1, a sliding rod 8 is arranged on the screw rod 5 through an adjusting mechanism, the sliding rod 8 is arranged in the horizontal direction, a sliding sleeve 10 is sleeved on the sliding rod 8 in a sliding manner, and a clamp is arranged at the bottom of the sliding sleeve 10.

Adopt above-mentioned scheme, punch holder 1 and lower plate 2 press from both sides tightly to be fixed in the edge of printing plate, then adjust the height and the horizontal direction position of anchor clamps to fix power transistor, make its positioning height accuracy error-free when welding power transistor, easy dismounting simultaneously, only need the tight regulation bolt can, improved production efficiency effectively.

The adjusting mechanism comprises a threaded sleeve 7 and a connecting plate 6, the threaded sleeve 7 is in threaded sleeve connection with the screw rod 5, the connecting plate 6 is in rotating sleeve connection with the outer wall of the threaded sleeve 7, and one end of the connecting plate 6 is fixedly connected with one end of the sliding rod 8.

Still include gag lever post 3, gag lever post 3 cup joints with connecting plate 6 slip, and the bottom and the punch holder 2 fixed connection of gag lever post 3, after preventing to fix power transistor, slide bar 8 can rotate when the welding.

The fixture comprises a fixing plate, a connecting rod 14, a spring 13 and two clamping plates 11, the fixing plate is fixedly connected with the sliding sleeve 10, the connecting rod 14 is in sliding sleeve connection with the fixing plate, one of the clamping plates 11 is fixedly connected with the sliding sleeve 10, the other clamping plate 11 is fixedly connected with the connecting rod 14, and the spring 13 is fixedly connected with the fixing plate together.

The soft pad 12 is fixedly connected to one side of each of the two clamping plates 11 close to each other, and damage to the power transistor is prevented.

The sliding sleeve 10 is fixedly connected with a second adjusting bolt 9 for limiting sliding, and the sliding sleeve 10 is fixed with the sliding rod 8 by screwing the second adjusting bolt 9, so that the sliding sleeve 10 is further prevented from sliding freely on the sliding rod 8.

The working principle is as follows: when using, screw up first adjusting bolt 4, make punch holder 1 and lower plate 2 press from both sides tightly in the edge of printing plate, then rotate thread bush 7, the thread bush 7 is rotatory to go up and down on screw rod 5, thereby adjust anchor clamps's height, move on slide bar 8 and adjust anchor clamps's horizontal direction position through sliding sleeve 10, then fix power transistor through grip block 11 under spring 13's elasticity, make its location height accuracy error-free when welding power transistor, easy dismounting simultaneously, only need the elasticity adjusting bolt can, production efficiency has been improved effectively.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A power transistor mounting apparatus, comprising: including screw rod (5), bottom fixedly connected with punch holder (2) of screw rod (5), the below of punch holder (2) is provided with lower plate (1), first adjusting bolt (4) have been cup jointed to the screw thread on punch holder (2), the bottom of first adjusting bolt (4) is rotated with the top of lower plate (1) and is connected, be provided with slide bar (8) through adjustment mechanism on screw rod (5), slide bar (8) horizontal direction sets up, and slides on slide bar (8) and has cup jointed sliding sleeve (10), the bottom of sliding sleeve (10) is provided with anchor clamps.

2. A power transistor mounting apparatus as claimed in claim 1, wherein: the adjusting mechanism comprises a threaded sleeve (7) and a connecting plate (6), the threaded sleeve (7) is in threaded sleeve connection with the screw rod (5), the connecting plate (6) is in rotating sleeve connection with the outer wall of the threaded sleeve (7), and one end of the connecting plate (6) is fixedly connected with one end of the sliding rod (8).

3. A power transistor mounting apparatus as claimed in claim 1, wherein: still include gag lever post (3), gag lever post (3) and connecting plate (6) slip cup joint, and the bottom and punch holder (2) fixed connection of gag lever post (3).

4. A power transistor mounting apparatus as claimed in claim 1, wherein: anchor clamps include fixed plate, connecting rod (14), spring (13) and two grip blocks (11), fixed plate and sliding sleeve (10) fixed connection, connecting rod (14) cup joint with the fixed plate is slided, one of them grip block (11) and sliding sleeve (10) fixed connection, another grip block (11) and connecting rod (14) fixed connection, and with the fixed plate between common fixed connection spring (13).

5. A power transistor mounting apparatus according to claim 4, wherein: two the equal fixedly connected with cushion (12) of one side that grip block (11) are close to each other.

6. A power transistor mounting apparatus as claimed in claim 1, wherein: and a second adjusting bolt (9) for limiting sliding is fixedly connected to the sliding sleeve (10).