CN215898129U

CN215898129U - Be applied to product anchor clamps of SMT paster reflow soldering

Info

Publication number: CN215898129U
Application number: CN202121836245.XU
Authority: CN
Inventors: 曹文龙
Original assignee: Changsha Weihong Electronics Co ltd
Current assignee: Changsha Weihong Electronics Co ltd
Priority date: 2021-08-08
Filing date: 2021-08-08
Publication date: 2022-02-22
Anticipated expiration: 2031-08-08

Abstract

The utility model relates to a product clamp applied to SMT chip reflow soldering, which comprises a horizontal conveying device, wherein a first motor is matched with a conveying shaft and a conveying wheel to drive a conveying belt to rotate, a PCB is conveyed to the position below a holding plate, a lifting assembly controls a fixed plate to descend so as to drive the holding plate to descend to the position of the PCB, an electric push rod pushes the holding plates to mutually approach, the PCB is held and fixed, the lifting assembly is controlled to drive the fixed plate to ascend to a proper position for reflow soldering processing, after one side of the PCB is processed, a third motor drives a rotating shaft to rotate, the rotating shaft drives the PCB to rotate and turn over through the holding plate, the other side of the PCB is processed, the lifting assembly drives the fixed plate to descend to drive the processed PCB to descend to a supporting convex position, the holding plate is controlled to separate, the conveying belt is controlled to drive the PCB to move, and the next PCB to be processed is conveyed to the position of the holding plate to be held and fixed, realize the automatic turn-over of PCB board and automatic feeding.

Description

Be applied to product anchor clamps of SMT paster reflow soldering

Technical Field

The utility model relates to the technical field of reflow soldering, in particular to a product clamp applied to SMT (surface mount technology) patch reflow soldering.

Background

SMT paster refers to a series of technological processes processed on the basis of a PCB, is the most popular technology and process in the electronic assembly industry, reflow soldering is an important component in the SMT basic process, and has the function that after air or nitrogen is heated to a high enough temperature, the air or the nitrogen is blown to a circuit board on which an element is pasted, paster glue on two sides of the element is melted, so that surface assembly components and the PCB are firmly adhered together, application number CN202022238641.4 provides a product clamp for reflow soldering of the SMT paster, two rotating shafts are symmetrically arranged on a base station through bearings, the end parts of the two rotating shafts close to each other are respectively provided with a first frame plate, two sides of the first frame plates are provided with second frame plates, two clamping plates can be movably arranged between the two second frame plates, the both ends of two splint all are provided with electronic slip table, four electronic slip tables respectively with correspond between the second deckle board sliding connection, and in one side be provided with the motor on the support, it rotates to drive the pivot through the motor, thereby realize the whole upset of first deckle board and second deckle board, in addition, it removes to add to hold fixedly to the SMT paster through electronic slip table drive splint, thereby be convenient for the reverse side when SMT paster reflow soldering, the reverse side of SMT paster when this kind of mode is realized, but when SMT paster is fixed, need handheld fixed, in addition, this kind of equipment can't be used for automatic operation's production line, make production efficiency can't improve, and when artifical handheld fixed, touch the component that has not yet welded easily, cause droing of component, influence production quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a product clamp applied to SMT (surface mount technology) reflow soldering, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

a product clamp applied to SMT (surface mount technology) chip reflow soldering comprises a horizontal conveying device, wherein the horizontal conveying device comprises two fixing frames which are symmetrically arranged, a conveying shaft is arranged between two ends of the two fixing frames, a conveying wheel is sleeved on the conveying shaft, a conveying belt is arranged on the outer side of the conveying wheel, a PCB (printed Circuit Board) is conveyed on the conveying belt, the top end of the conveying wheel is higher than the top end of the mounting frame, a first motor is arranged on the outer side of the fixing frame, the output end of the first motor is connected with the conveying shaft, mounting seats are symmetrically arranged on two sides of the horizontal conveying device, a lifting assembly is arranged on the top end of each mounting seat, a fixing plate is arranged on the top end of the lifting assembly, rotating shafts are rotatably mounted on the fixing plate, electric push rods are arranged at the end parts, close to each other, and clamping plates are arranged at the end parts, close to each other, of the electric push rods, and a second motor is arranged on the outer side of the fixed plate on one side, and the output end of the second motor is connected with the corresponding rotating shaft.

As a further scheme of the utility model: the lifting assembly comprises a fixed column positioned at the top end of the mounting seat, the top end of the fixed column is connected with a lifting column in a lifting and sliding manner, the top end of the lifting column is connected with the fixed plate, and a lifting adjusting assembly is arranged between the two lifting columns.

As a still further scheme of the utility model: the lifting device is characterized in that a lifting groove is formed in the top end of the fixing column downwards, a connecting block is arranged at the bottom end of the lifting column, the connecting block is non-cylindrical, the lifting groove is matched with the connecting block, and a threaded lifting section is arranged on the lifting column.

As a still further scheme of the utility model: the lifting adjusting assembly comprises a worm wheel rotatably connected with the top end of the fixed column, the worm wheel is sleeved on the outer side of the lifting column in a threaded manner, two protective shells are arranged on the outer sides of the fixed column, a worm is rotatably arranged between two side walls of each protective shell, the worm is matched with the two worm wheels, a third motor is arranged on one side wall of each protective shell, and the output end of the third motor is connected with the worm.

As a still further scheme of the utility model: two add the holding board and all be provided with the rubber pad on being close to each other's the side.

As a still further scheme of the utility model: the bottom of mount evenly is provided with the multiunit supporting leg, the bottom of supporting leg is provided with the fixed sole.

As a still further scheme of the utility model: the surface of conveyer belt evenly is provided with a plurality of support archs, the bellied width of support is less than the width of PCB board.

As a still further scheme of the utility model: and bearings are arranged between the worm wheel and the fixed column, between the conveying shaft and the conveying frame and between the rotating shaft and the fixed plate.

Compared with the prior art, the utility model has the advantages that:

the utility model comprises a horizontal conveying device, a conveying shaft is driven by a first motor to rotate, a conveying wheel is driven by the conveying shaft to rotate, a conveying belt is driven by the conveying wheel to rotate, a PCB is conveyed to the position below a clamping plate by the conveying belt, automatic feeding of the PCB is realized by the arrangement of the conveying belt, continuous processing operation is realized, the lifting of a fixing plate is controlled by a lifting assembly, the fixing plate drives a rotating shaft to descend, the rotating shaft drives the clamping plate to descend to the position of the PCB, the clamping plates are pushed to approach each other by an electric push rod to clamp and fix the PCB, then the lifting assembly is controlled to drive the fixing plate to ascend to a proper position for reflow soldering processing, after one side is processed, a third motor is controlled to drive the rotating shaft to rotate, the rotating shaft drives the PCB to rotate and turn over through the clamping plate, reflow soldering processing is carried out on the other side, and after the processing is finished, the fixing plate is driven to descend by the lifting assembly, thereby drive the PCB board that processing was accomplished and descend to being located the support arch on the conveyer belt on, control electric putter drives and adds and holds the board separation, then control conveyer belt drive PCB board and remove, carries the PCB board of waiting to process next and adds to holding the board position and hold fixedly, realizes the automatic turn-over of PCB board and automatic feeding, improves the operating efficiency.

Drawings

FIG. 1 is a first schematic diagram illustrating an overall structure of a product clamp for SMT reflow soldering according to the present invention;

FIG. 2 is a schematic diagram of an overall structure of a product clamp for SMT reflow soldering according to the present invention;

FIG. 3 is a schematic view of the connection structure between the lifting assembly and the clamping plate and the PCB board of the present invention;

fig. 4 is a sectional view of a connection structure between a fixed column, a worm wheel and a lifting column according to the present invention.

In the figure: 1. a fixed mount; 2. a delivery shaft; 3. a delivery wheel; 4. a conveyor belt; 5. a PCB board; 6. a first motor; 7. a mounting seat; 8. a fixing plate; 9. a rotating shaft; 10. an electric push rod; 11. a holding plate; 12. a second motor; 13. fixing a column; 14. a lifting column; 15. a lifting groove; 16. connecting blocks; 17. a threaded lifting section; 18. a worm gear; 19. a protective shell; 20. a worm; 21. a third motor; 22. a rubber pad; 23. supporting legs; 24. a fixed foot plate; 25. a support boss; 26. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1-2, in the embodiment of the present invention:

a product clamp applied to SMT chip reflow soldering comprises a horizontal conveying device, wherein the horizontal conveying device comprises two fixing frames 1 which are symmetrically arranged, a conveying shaft 2 is arranged between two ends of the two fixing frames 1, a conveying wheel 3 is sleeved on the conveying shaft 2, a conveying belt 4 is arranged on the outer side of the conveying wheel 3, a PCB 5 is conveyed on the conveying belt 4, the top end of the conveying wheel 3 is higher than the top end of the fixing frame 1, a first motor 6 is arranged on the outer side of the fixing frame 1, the output end of the first motor 6 is connected with the conveying shaft 2, mounting seats 7 are symmetrically arranged on two sides of the horizontal conveying device, a lifting assembly is arranged at the top end of each mounting seat 7, a fixing plate 8 is arranged at the top end of the lifting assembly, rotating shafts 9 are rotatably mounted on the fixing plate 8, electric push rods 10 are respectively arranged at the end parts, which are close to each other, and clamping plates 11 are respectively arranged at the end parts, which are close to each other, of the electric push rods 10, the outer side of the fixing plate 8 at one side is provided with a second motor 12, and the output end of the second motor 12 is connected with the corresponding rotating shaft 9.

Referring to fig. 1 and 3, in an embodiment of the present invention: lifting unit is including being located the fixed column 13 on mount pad 7 top, the liftable sliding connection in top of fixed column 13 has lift post 14, the top and the fixed plate 8 of lift post 14 are connected, be provided with the lift adjustment subassembly between two lift posts 14, make lift post 14 go up and down on fixed column 13 through the lift adjustment subassembly, thereby drive the lift of fixed plate 8, fixed plate 8 drives pivot 9 and goes up and down, pivot 9 drives through electric putter 10 and adds the lift of holding board 11, thereby make to add and hold board 11 and can descend and will be located PCB board 5 on conveyer belt 4 and add and hold fixedly, and upward movement processes to suitable position.

Referring to fig. 4, in an embodiment of the present invention: the lifting groove 15 has been seted up downwards to the top of fixed column 13, and the bottom of lifting column 14 is provided with connecting block 16, and connecting block 16 is non-cylindrical, and lifting groove 15 matches with connecting block 16, is provided with screw thread lift section 17 on the lifting column 14, through the setting of connecting block 16, can strengthen the lift stability of lifting column 14, prevents simultaneously that lifting column 14 from breaking away from lifting groove 15.

Referring to fig. 1, 3 and 4, in an embodiment of the present invention: the lifting adjusting assembly comprises a worm wheel 18 rotatably connected with the top ends of the fixed columns 13, the worm wheel 18 is sleeved on the outer side of the lifting column 14 in a threaded manner, protective shells 19 are arranged on the outer sides of the two fixed columns 13, worms 20 are rotatably arranged between two side walls of the protective shells 19, the worms 20 are matched with the two worm wheels 18, a third motor 21 is arranged on one side wall of each protective shell 19, the output end of each third motor 21 is connected with the corresponding worm 20, the third motor 21 drives the corresponding worm 20 to rotate, the worm 20 drives the worm wheels 18 to rotate through the cooperation with the worm wheels 18, and the worm wheels 18 enable the lifting column 14 to lift in the lifting groove 15 through the threaded cooperation with the lifting column 14, so that the fixing plate 8 can lift.

Referring to fig. 1, in an embodiment of the present invention: rubber pads 22 are arranged on the side faces of the two clamping plates 11 close to each other, the rubber pads 22 increase the friction force between the two clamping plates 11 and the PCB 5, meanwhile, the clamping plates 11 are prevented from damage to the PCB 5 during clamping operation, and the rubber pads 22 are preferably metal rubber pads 22 with high temperature resistance.

Referring to fig. 1, in an embodiment of the present invention: the bottom of mount 1 evenly is provided with multiunit supporting leg 23, and the bottom of supporting leg 23 is provided with solid fixed foot board 24, supports mount 1 through supporting leg 23, realizes increasing holistic support stability through solid fixed foot board 24.

Referring to fig. 1, in an embodiment of the present invention: the outer surface of conveyer belt 4 evenly is provided with a plurality of support protrusion 25, and the width of support protrusion 25 is less than the width of PCB board 5, is convenient for add the operation of holding board 11.

Referring to fig. 1, in an embodiment of the present invention: bearings 26 are arranged between the worm wheel 18 and the fixed column 13, between the worm 20 and the protective shell 19, between the conveying shaft 2 and the conveying frame and between the rotating shaft 9 and the fixed plate 8, so that the rotating smoothness is enhanced.

Example 2:

referring to fig. 1-3, the present invention relates to a product clamp for SMT reflow soldering, when in use, a PCB 5 to be reflowed is placed on a support protrusion 25 of a conveyor belt 4, a first motor 6 is started, the first motor 6 drives a conveyor shaft 2 to rotate, the conveyor shaft 2 drives a conveyor wheel 3 to rotate, the conveyor belt 4 is driven to rotate by the conveyor wheel 3, the PCB 5 is conveyed to the position below a holding plate 11 by the conveyor belt 4, then a third motor 21 is started, a worm 20 is driven to rotate by the third motor 21, the worm 20 drives a worm wheel 18 to rotate by cooperation with the worm wheel 18, the worm wheel 18 enables a lifting column 14 to descend in a lifting slot 15 by the thread cooperation with the lifting column 14, so as to realize the descending of a fixing plate 8, the fixing plate 8 drives a rotating shaft 9 to descend, the rotating shaft 9 drives the holding plate 11 to a proper position by an electric push rod 10, then starting the electric push rod 10, so that the clamping plates 11 approach each other to clamp and fix the PCB 5 on the conveyer belt 4, then reversely controlling the fixed plate 8 to ascend to a proper position for reflow soldering processing operation according to the above steps, after one side is processed, driving the rotating shaft 9 to rotate through the second motor 12, driving the electric push rod 10 to rotate through the rotating shaft 9, driving the clamping plates 11 to rotate through the electric push rod 10, driving the PCB 5 to overturn through the clamping plates 11 for processing the other side, after the processing is completed, driving the fixed plate 8 to descend through the lifting assembly, thereby driving the processed PCB 5 to descend to the supporting protrusions 25 on the conveyer belt 4, controlling the electric push rod 10 to drive the clamping plates 11 to separate, then controlling the conveyer belt 4 to drive the PCB 5 to move, and conveying the next PCB 5 to be processed to the position of the clamping plates 11 for clamping and fixing, and then repeating the steps.

Example 3:

referring to fig. 3 and 4, the utility model relates to a product fixture applied to SMT reflow soldering of a chip, which includes a fixing column 13 based on embodiment 2, wherein a lifting groove 15 is formed on the fixing column 13, a connecting block 16 is arranged at the bottom end of the lifting column 14, the connecting block 16 is non-cylindrical and is matched with the lifting groove 15, a threaded lifting section 17 is arranged on the lifting column 14, the threaded lifting section 17 is matched with the inner wall of a worm wheel 18 in a threaded manner, and by means of the connecting block 16, the lifting stability of the lifting column 14 can be enhanced, and the lifting column 14 is prevented from being separated from the lifting groove 15.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a be applied to product anchor clamps of SMT paster reflow soldering, includes horizontal conveyor, its characterized in that: the horizontal conveying device comprises two fixing frames (1) which are symmetrically arranged, a conveying shaft (2) is arranged between two ends of the two fixing frames (1), a conveying wheel (3) is sleeved on the conveying shaft (2), a conveying belt (4) is arranged on the outer side of the conveying wheel (3), a PCB (printed circuit board) (5) is conveyed on the conveying belt (4), the top end of the conveying wheel (3) is higher than the top end of the fixing frame (1), a first motor (6) is arranged on the outer side of the fixing frame (1), the output end of the first motor (6) is connected with the conveying shaft (2), mounting seats (7) are symmetrically arranged on two sides of the horizontal conveying device, a lifting assembly is arranged at the top end of each mounting seat (7), a fixing plate (8) is arranged at the top end of the lifting assembly, a rotating shaft (9) is rotatably arranged on the fixing plate (8), and electric push rods (10) are arranged at two ends, close to each other, of the rotating shafts (9), the end parts of the electric push rods (10) close to each other are provided with clamping plates (11), one side of each clamping plate is provided with a second motor (12) outside the fixing plate (8), and the output end of each second motor (12) is connected with the corresponding rotating shaft (9).

2. The product clamp applied to SMT reflow soldering of claim 1, wherein: the lifting assembly comprises a fixing column (13) located at the top end of the mounting seat (7), the top end of the fixing column (13) is connected with a lifting column (14) in a lifting sliding mode, the top end of the lifting column (14) is connected with the fixing plate (8), and a lifting adjusting assembly is arranged between the two lifting columns (14).

3. A product holder for SMT reflow soldering of a patch according to claim 2, wherein: the lifting device is characterized in that a lifting groove (15) is formed in the top end of the fixing column (13) downwards, a connecting block (16) is arranged at the bottom end of the lifting column (14), the connecting block (16) is non-cylindrical, the lifting groove (15) is matched with the connecting block (16), and a threaded lifting section (17) is arranged on the lifting column (14).

4. A product holder for SMT reflow soldering of a patch according to claim 3, wherein: the lifting adjusting assembly comprises a worm wheel (18) rotatably connected with the top end of a fixed column (13), the worm wheel (18) is sleeved on the outer side of the lifting column (14) in a threaded manner, two protective shells (19) are arranged on the outer sides of the fixed column (13), a worm (20) is rotatably arranged between two side walls of each protective shell (19), the worm (20) is matched with the two worm wheels (18), a third motor (21) is arranged on one side wall of each protective shell (19), and the output end of the third motor (21) is connected with the worm (20).

5. The product clamp applied to SMT reflow soldering of claim 1, wherein: rubber pads (22) are arranged on the side faces, close to each other, of the two holding plates (11).

6. The product clamp applied to SMT reflow soldering of claim 1, wherein: the bottom of mount (1) evenly is provided with multiunit supporting leg (23), the bottom of supporting leg (23) is provided with solid fixed foot board (24).

7. The product clamp applied to SMT reflow soldering of claim 1, wherein: the outer surface of conveyer belt (4) evenly is provided with a plurality of support protruding (25), the width of support protruding (25) is less than the width of PCB board (5).

8. A product clamp applied to SMT reflow soldering according to claim 4, wherein: and bearings (26) are arranged between the worm wheel (18) and the fixed column (13), between the conveying shaft (2) and the conveying frame and between the rotating shaft (9) and the fixed plate (8).