CN115417088A

CN115417088A - PCB board carrier with adjustable

Info

Publication number: CN115417088A
Application number: CN202211236289.8A
Authority: CN
Inventors: 陈远明; 孙啸寅; 李晓锋; 李会民; 李辛
Original assignee: Shanghai Sharetek Technology Co Ltd
Current assignee: Shanghai Sharetek Technology Co Ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2022-12-02

Abstract

The invention relates to an adjustable PCB carrier, comprising: the worm-crank width adjusting mechanism is arranged on the material bearing plate, connected with the adjusting direction switching mechanism and used for driving the helical bevel gear, the worm wheel and the crank structure through the rocker to respectively adjust the positions of the fixed posts clamped in the length direction and the width direction of the PCB; and the adjusting direction switching mechanism is arranged on the back surface of the material bearing plate, and realizes the switching of adjusting directions through a pair of helical bevel gears on the main gear shaft and a shifting sliding mechanism, thereby realizing the respective driving adjustment of the corresponding helical bevel gears, worm gears and crank structures in the worm crank width adjusting mechanism. The invention can bear PCBs with different sizes, and can freely adjust the size of a carrier by sliding through the inclined groove, rotating the bearing and by means of the gear meshing structure, the worm gear structure and the crank structure.

Description

PCB board carrier with adjustable

Technical Field

The invention relates to a PCB tool carrier, in particular to an adjustable PCB carrier.

Background

With the development of industrial automation, many factories enter into the stage of automatic production, and so do the PCB board industry. In a normal PCB board automatic production line, a tooling carrier is usually used to support and carry PCBs and transport the PCBs between various devices. At present, carriers used in the industry are generally tool carriers specially customized according to product shapes or carriers needing to be manually adjusted independently, and groove bodies with corresponding shapes are designed in the tools to fix the PCB.

The size of the PCB board is typically different for different products. Therefore, a set of tooling fixtures specially customized for a certain product is generally difficult to be applied to other products. When a plurality of different products appear in a production line, a plurality of tool fixtures need to be equipped. Therefore, the complexity of the production line can be increased, the difficulty in disassembly, assembly and replacement can be increased, the production efficiency is reduced, and the capital cost and the time cost are increased to a certain extent.

Disclosure of Invention

In order to solve the technical problem, the invention provides an adjustable PCB carrier which can adjust the size of a clamp according to the size of a PCB, has a simple integral structure, is convenient to use and can improve the adjustment efficiency.

In order to realize the purpose, the technical scheme of the invention is as follows: an adjustable PCB board carrier comprising:

the worm-crank width adjusting mechanism is arranged on the material bearing plate, connected with the adjusting direction switching mechanism and used for driving the helical bevel gear, the worm wheel and the crank structure through the rocker to respectively adjust the positions of the fixed posts clamped in the length direction and the width direction of the PCB;

and the adjusting direction switching mechanism is arranged on the back surface of the material bearing plate, and realizes the switching of adjusting directions through a pair of helical bevel gears on the main gear shaft and a shifting sliding mechanism, thereby realizing the respective driving adjustment of the corresponding helical bevel gears, worm gears and crank structures in the worm crank width adjusting mechanism.

Further, the worm-crank width adjusting mechanism is provided with two pairs of worm and worm wheel mechanisms and a crank structure, wherein worm wheels in the two pairs of worm and worm wheel mechanisms are coaxially and rotatably connected to the material bearing plate through mandrels, the two worm wheels are respectively connected with respective worms, and the two worms are respectively connected with a bevel gear with helical teeth; the upper surfaces of the two worm gears are respectively connected with respective crank structures, wherein one crank structure is respectively hinged with a sliding block capable of moving along the length direction of the PCB through two symmetrically hinged long cranks, the other crank structure is respectively hinged with a sliding block capable of moving along the width direction of the PCB through two symmetrically hinged short cranks, the sliding block is arranged in a guide sliding groove formed in the upper surface of the material bearing plate, and a fixed post rod is fixedly connected to the upper surface of the sliding block.

Further, the worm passes through the bearing frame and installs on the holding plate with the bearing, and is rotatable.

Furthermore, the crank is connected with the sliding block through a crank sliding block screw combined bearing, and the tail end of the crank sliding block screw fixes the fixed post rod on the sliding block through threads.

Furthermore, a pair of helical bevel gears in the adjusting direction switching mechanism is coaxially mounted on a main gear shaft, the main gear shaft is connected with a shifting and sliding mechanism, and the shifting and sliding mechanism drives the main gear shaft and two helical bevel gears on the main gear shaft to slide, so that the two helical bevel gears in different adjusting directions are respectively connected.

Furthermore, one end of a main gear shaft in the toggle sliding mechanism is connected with a guide pillar bearing seat through a bearing, the guide pillar bearing seat is fixed in the axial position by a stepped protrusion on the main gear shaft and a bearing limiting sleeve and is linked with the main gear shaft, a guide pillar on the guide pillar bearing seat can slide in an inclined guide groove of an inclined guide groove plate, a manual push piece is connected with the inclined guide groove plate through a bolt, the inclined guide groove plate is in contact with an inclined guide groove plate sliding plate, and the inclined guide groove plate can slide on the guide groove plate sliding plate; the other end of the main gear shaft is in contact with the bearing seat sliding support through a sliding bearing seat, and the sliding bearing seat can slide in the bearing seat sliding support.

Furthermore, the main gear shaft is wedged into the conical rocker to form tight connection.

Further, the main gear shaft is circumferentially and fixedly connected with two helical bevel gears through set screws.

Furthermore, guide sliding grooves are formed in the two sides of the material bearing plate in the length direction and the width direction respectively.

The invention has the beneficial effects that:

the invention adopts the structure of the rocker and the gear engagement, the worm wheel and the crank, and the size of the clamp can be adjusted according to the size of the PCB. The gear is driven by the rocker, so that the worm gear and the crank structure are driven, and the size of the clamp is adjusted. And, the front and rear ends and the left and right ends of the jig are separately adjustable. The whole structure is simple, and the use is convenient. The invention can bear PCBs with different sizes, and can freely adjust the size of a carrier by sliding through the inclined groove, rotating the bearing and by means of the gear meshing structure, the worm gear structure and the crank structure. In the production line with products of different sizes, carriers do not need to be customized intentionally, and the cost is effectively reduced. And the length and the width of the carrier can be adjusted independently, so that the adaptability is strong.

Drawings

FIG. 1 is a schematic diagram of the top structure and operation of an adjustable PCB carrier of the present invention;

FIG. 2 is a schematic diagram of the bottom structure of the adjustable PCB board carrier of the present invention;

FIG. 3 is a schematic view of a transmission mechanism;

in the figure: the device comprises a spindle 1, a left and right side width adjusting worm wheel 2, a first and a second long cranks 031, 032, a first and a

second sliders

051 and 052, a front and back side width adjusting worm wheel 7, a first and a second short cranks 081 and 082, a short crank slider screw 9, a first and a

second worm

101 and 102, a main gear shaft 11, a guide post bearing seat 14, a slant guide slotted plate 16, a long crank slider screw 17, a fixed post 18, a material bearing plate 19, a bearing limiting sleeve 20, a first to a fourth slant

tooth bevel gears

211, 212, 213 and 214, a slant guide slotted plate fixing plate 22, a manual push piece 25, a bearing seat sliding support frame 26, a taper rocker 27 and a PCB 28.

Detailed Description

The invention is further described with reference to the following figures and examples.

As shown in fig. 1 to fig. 3, an adjustable PCB board carrier of the present invention includes an adjusting direction switching mechanism and a worm crank width adjusting mechanism.

The adjustment direction switching mechanism is wedged into the main gear shaft 11 by a tapered rocker 27 to form a tight connection. The main gear shaft 11 is connected with the guide post bearing seat 14 through a bearing and can rotate relatively, and the guide post bearing seat 14 is fixed by a stepped bulge on the main gear shaft 11 and a bearing limiting sleeve 20, and the axial position of the guide post bearing seat is linked with the main gear shaft 11. The guide post of the guide post bearing block 14 can slide in the inclined guide groove of the inclined guide groove plate 16, the manual push piece 25 is connected with the inclined guide groove plate 16 through a bolt, the inclined guide groove plate 16 is contacted with the inclined guide groove plate sliding plate 22, and the inclined guide groove plate 16 can slide on the guide groove plate sliding plate 22. The main gear shaft 11 is connected to second and

third bevel gears

212 and 213, and is circumferentially fixed by a set screw, the second bevel gear 212 being in contact with the first bevel gear 211, and the third bevel gear 213 being in contact with the fourth bevel gear 214. The main gear shaft 11 is connected with the sliding bearing seat 24 through a bearing and can rotate relatively, the sliding bearing seat 24 is in contact with the bearing seat sliding bracket 26, and the sliding bearing seat 24 can slide in the bearing seat sliding bracket 26.

In the worm crank width adjusting mechanism, a first worm 101 and a second worm 102 are fixed on a material bearing plate 19 through a bearing seat and a bearing and can rotate, the first worm 101 is in contact with the front and rear width adjusting worm wheels 7 for transmission, and the second worm 102 is in contact with the left and right width adjusting worm wheels 2 for transmission. The left and right side width adjusting worm wheels 2 and the front and rear side width adjusting worm wheels 7 are rotatably connected with the material bearing plate 19 through the mandrel 1. The first long crank 031 is connected with the first slide block 051 through a long crank slide block screw 17 combined bearing, meanwhile, the tail end of the long crank slide block screw 17 is provided with threads, so that the fixed post 18 can be fixed on the first slide block 051 to move together with the first slide block 051, and the second long crank 032 is connected in the same way as the first long crank 031. The second short crank 082 is connected with the second slide block 052 through the short crank slide block screw 9 combined bearing, meanwhile, the fixed post 18 can be fixed on the second slide block 052 by the screw thread at the tail end of the long crank slide block screw 9 to move together with the second slide block 052, and the first short crank 081 is connected in the same way as the second short crank 082.

The upper surface of the material bearing plate 19 is respectively provided with guide chutes along the length direction and the width direction, the guide chutes in the length direction are in fit sliding connection with the first slide block 051, and the guide chutes in the width direction are in fit sliding connection with the second slide block 052.

The working principle of the invention is as follows:

before the width adjustment work, the adjustable PCB carrier pushes the manual push plate 25 to the limit position, at this time, the slant guide slot plate 16 moves vertically downward as shown in fig. 1, and the guide post bearing seat 14 moves horizontally right as shown in fig. 1 along the slant guide slot, so that the third bevel gear 213 moves right to be engaged with the fourth bevel gear 214 through the driving gear shaft 11. At this time, the conical rocker 27 is shifted to make the main gear shaft 11 and the third bevel gear 213 rotate, and at this time, the fourth bevel gear 214 is meshed to rotate, the second worm 102 rotates therewith to drive the left and right side width-adjusting worm gears 2 to rotate, and the first and second long cranks 031, 032 connected to the left and right side width-adjusting worm gears 2 symmetrically move, and simultaneously push the two correspondingly connected first sliding blocks 051 to move, and since the sliding blocks are limited by the material-bearing plate 19 as shown in fig. 3, only linear movement can be performed, so as to achieve the purpose of adjusting the distance between the two fixed column rods 18 in the length direction. The manual push plate 25 is pulled to the limit position, in which the slant guide slot plate 16 moves vertically upward as shown in fig. 1, and the guide post bearing housing 14 moves horizontally leftward as shown in fig. 1 along the slant guide slot, so that the second bevel gear 212 moves rightward by the main gear shaft 11 to be engaged with the first bevel gear 211. The principle of width adjustment after meshing is the same as that described above, and the purpose of adjusting the distance between the two fixed posts 18 in the width direction is finally achieved.

Claims

1. An adjustable PCB board carrier, comprising:

the worm-crank width adjusting mechanism is arranged on the material bearing plate, is connected with the adjusting direction switching mechanism and is used for driving the helical bevel gear, the worm wheel and the crank structure through the rocker to respectively adjust the positions of the fixed post rods clamped in the length direction and the width direction of the PCB;

2. The adjustable PCB board carrier of claim 1, wherein: the worm-crank width adjusting mechanism is provided with two pairs of worm and worm wheel mechanisms and a crank structure, worm wheels in the two pairs of worm and worm wheel mechanisms are coaxially and rotatably connected to the material bearing plate through mandrels, the two worm wheels are respectively connected with respective worms, and the two worms are respectively connected with a bevel gear with helical teeth; the upper surfaces of the two worm gears are respectively connected with respective crank structures, wherein one crank structure is respectively hinged with a sliding block capable of moving along the length direction of the PCB through two symmetrically hinged long cranks, the other crank structure is respectively hinged with a sliding block capable of moving along the width direction of the PCB through two symmetrically hinged short cranks, the sliding block is arranged in a guide sliding groove formed in the upper surface of the material bearing plate, and a fixed post rod is fixedly connected to the upper surface of the sliding block.

3. The adjustable PCB board carrier of claim 2, wherein: the worm is installed on the material bearing plate through a bearing seat and a bearing and can rotate.

4. The adjustable PCB board carrier of claim 2, wherein: the crank is connected with the sliding block through a crank sliding block screw combination bearing, and the tail end of the crank sliding block screw fixes the fixed column rod on the sliding block through threads.

5. The adjustable PCB board carrier of claim 1, wherein: a pair of helical bevel gears in the adjusting direction switching mechanism is coaxially arranged on a main gear shaft, the main gear shaft is connected with a shifting and sliding mechanism, and the shifting and sliding mechanism drives the main gear shaft and two helical bevel gears on the main gear shaft to slide, so that the two helical bevel gears in different adjusting directions are respectively connected.

6. The adjustable PCB board carrier of claim 5, wherein: one end of a main gear shaft in the shifting and sliding mechanism is connected with a guide post bearing seat through a bearing, the guide post bearing seat is fixed in the axial position by a stepped bulge on the main gear shaft and a bearing limiting sleeve and is linked with the main gear shaft, a guide post on the guide post bearing seat can slide in an inclined guide groove of an inclined guide groove plate, a manual push piece is connected with the inclined guide groove plate through a bolt, the inclined guide groove plate is contacted with an inclined guide groove plate sliding plate, and the inclined guide groove plate can slide on the guide groove plate sliding plate; the other end of the main gear shaft is in contact with the bearing seat sliding support through a sliding bearing seat, and the sliding bearing seat can slide in the bearing seat sliding support.

7. The adjustable PCB board carrier of claim 5, wherein: the main gear shaft is wedged with a conical rocker to form tight connection.

8. The adjustable PCB board carrier of claim 5, wherein: the main gear shaft is circumferentially and fixedly connected with two helical bevel gears through set screws.

9. The adjustable PCB board carrier of claim 1, wherein: and guide sliding grooves are respectively formed in the material bearing plate along the length direction and the two sides of the material bearing plate along the width direction.