CN113210825A

CN113210825A - Automatic spot welding device for electronic product assembly parts

Info

Publication number: CN113210825A
Application number: CN202110678727.5A
Authority: CN
Inventors: 周雯
Original assignee: Shenzhen Chengda Yonghe Electronics Co ltd
Current assignee: Shenzhen Chengda Yonghe Electronics Co ltd
Priority date: 2021-06-18
Filing date: 2021-06-18
Publication date: 2021-08-06

Abstract

The invention discloses an automatic spot welding device for an electronic product assembly part, which is provided with a base, a material loading track component, a welding cooling component, a driving component, a driven component, a connecting rod component and a power component, wherein the material loading track component is arranged on the base; the welding cooling assembly is provided with a rack, a spot welding machine and a blowing group, and the rack is mounted on the base; the spot welding machine and the blowing group are arranged on the frame; the material loading track assembly is arranged on the rack; the active component is arranged at the lower part of the frame; the driven assembly is mounted on the frame; the connecting rod assembly is connected with the driving assembly and the driven assembly; the power assembly drives the driving assembly to operate, the driving assembly drives the connecting rod assembly to move, the connecting rod assembly pushes the driven assembly to move, and the driven assembly pushes the assembly part to move on the loading track; the invention has stable and reliable structure, simple operation and good market due value.

Description

Automatic spot welding device for electronic product assembly parts

Technical Field

The invention relates to the field of industrial production, in particular to an automatic spot welding device for an electronic product assembly.

Background

A common conveying mode of electronic products in the industrial production process is belt conveying, although a belt conveying assembly part has good continuity and consistency; but the belt conveying speed is high, and intermittent conveying cannot be realized; if other equipment parts are added on the conveying line for partially processing the workpieces, compared with the addition of a new production process, the time and labor are saved; but because the conveying speed of the commonly used belt is higher, other operation items cannot be added in the conveying process; if the intermittent conveying of the assembly parts can be realized, and the corresponding operation time is reserved, new operation items can be added on the conveying line, the operation flow of the assembly line operation is reduced, the operation efficiency of the assembly line operation is improved, and the consumption of manpower and material resources is reduced; the invention provides a stitch welding device for an assembly capable of being conveyed intermittently.

Disclosure of Invention

In order to solve the defects in the prior art, the invention provides an automatic spot welding device for an electronic product assembly.

An automatic spot welding device for an electronic product assembly part is provided with a base, a material loading track component, a spot welding cooling component, a driving component, a driven component, a connecting rod component and a power component; the spot welding cooling assembly is provided with a rack and a blowing and dust removing device, and the rack is mounted on the base; the blowing and dust removing device is arranged on the rack; the material loading track assembly is arranged on the rack; the active component is arranged at the lower part of the frame; the driven assembly is mounted on the frame; the connecting rod assembly is connected with the driving assembly and the driven assembly; the power assembly drives the driving assembly to operate.

Preferably, the loading track assembly is provided with a loading track, a blanking track, a speed regulating motor, an idler wheel, a flat belt and a sensor; two ends of the rail groove of the feeding rail are respectively provided with a pulley; the blanking track is provided with a groove, and the groove is positioned on the edge of the blanking track; two sides of the blanking track are provided with guard plates, and holes are formed in the guard plates; the feeding track and the discharging track are both arranged on the rack, and the discharging track is positioned in front of the left side of the feeding track; the speed regulating motor is arranged below the rack, and a flat belt pulley is arranged on a shaft of the speed regulating motor; the idler wheels are arranged below the rack, and the flat belt is wound by the outer sides of the pulleys at two ends of the track groove of the feeding track, the outer sides of the flat belt wheels of the speed regulating motor and the inner sides of the two idler wheels; the sensors are arranged at the feeding end of the feeding track and the discharging end of the discharging track; the speed regulating motor drives the flat belt to run the conveying assembly part; the idler wheel can adjust the tension degree of the flat belt wheel; pulleys are arranged at two ends of the feeding track groove, so that the friction force of the flat belt in operation can be reduced, and the power loss is reduced; the sensor monitors the operation of the assembly parts on the feeding track and the discharging track, and the sensor is interlocked with the displacement sensor of the power assembly.

Preferably, the spot welding cooling assembly is provided with a rack and a blowing and dust removing device; the machine frame is provided with a material distribution slideway, a first main shaft fixing plate, a second main shaft fixing plate and a combined slideway fixing plate; the material distribution slide way is positioned between the discharge end of the feeding track and the feed end of the discharging track; the first main shaft fixing plate and the second main shaft fixing plate are positioned at the left side and the right side below the rack; the combined slideway fixing plate is positioned on the left side of the blanking track; the spot welding machine is arranged at the feeding end of the blanking track, and the blowing group is arranged on the rack and distributed on two sides of the blanking track; the welding gun of the spot welding machine and the air outlet of the air blowing group penetrate through the hole of the guard plate and are inserted into the groove; the rack is used as a main working table surface and provides a working table and mounting support points for the material loading track assembly, the blowing and dedusting device, the driving assembly, the driven assembly, the connecting rod assembly and the power assembly; and the spot welding machine welds the assembly part, and the blowing group blows air to the spot welded assembly part for cooling.

Preferably, the driving assembly is provided with a main shaft, a material distribution cam, a pushing cam and a pressing cam; the main shaft is arranged below the blowing rack; the material distributing cam, the pushing cam and the pressing cam are arranged on the main shaft; the material distributing cam drives the material distributing slide block to do reciprocating motion, and the assembly part is transferred to the discharging track from the feeding track; the pushing cam and the pressing cam drive the pushing claw to do reciprocating motion to drive the assembly part to move forward on the blanking track.

Preferably, the driven assembly is provided with a material distributing slide block, a combined slide block and a material pushing claw; the material distributing slide block is provided with a material loading groove and is arranged on the material distributing slide way; the combined sliding block is provided with a horizontal slideway, a vertical slideway and a sliding block; the horizontal slide way is installed on the combined slide block fixing plate, the vertical slide way is installed on the horizontal slide way, the slide block is installed on the vertical slide way, and the pushing claw is installed on the slide block; the material pushing claw is positioned above the track groove of the blanking track.

Preferably, the connecting rod assembly is provided with a distributing connecting rod assembly, a propelling connecting rod assembly and a pressing connecting rod assembly; the distributing connecting rod assembly is used as a transmission lever of the acting force between the distributing cam and the distributing slide block to drive the distributing slide block to move; the pushing connecting rod assembly and the pressing connecting rod assembly are respectively used as transmission levers of the acting force among the pushing cam, the pressing cam and the pushing claw to drive the pushing claw to move.

Preferably, the distributing connecting rod assembly is provided with a distributing connecting rod, a distributing dead axle and a first adjusting connecting rod; one end of the material distributing connecting rod is fixed on the base, the other end of the material distributing connecting rod is connected with one end of the first adjusting connecting rod, and the other end of the first adjusting connecting rod is connected with the material distributing sliding block; the material distributing fixed shaft is arranged on the material distributing connecting rod and is contacted with the material distributing cam; the material distributing cam rotates to drive the material distributing connecting rod assembly to move so as to drive the material distributing sliding block to move; the two ends of the first adjusting connecting rod are fisheye joints, the middle of the first adjusting connecting rod is a double-head lead screw, and the length of the first adjusting connecting rod can be adjusted through adjusting the fisheye joints so as to adjust the left-right movement distance of the material distributing sliding block.

Preferably, the propelling connecting rod assembly is provided with a propelling connecting rod, a second adjusting connecting rod, a fulcrum, a sliding seat, a third bearing and a fourth bearing; the third bearing is arranged at one end of the propelling connecting rod, and the other end of the propelling connecting rod is connected with one end of the second adjusting connecting rod; the other end of the second adjusting connecting rod is connected with the vertical slideway, and the third bearing is in contact with the propelling cam; the fulcrum is arranged on the pushing connecting rod, the sliding seat is arranged on the rack, the fulcrum is connected with the sliding seat, and a fourth bearing is arranged at the connecting position of the fulcrum and the sliding seat; the pushing cam rotates to drive the connecting rod assembly to move, and then the pushing claw is driven to move; the second adjusting connecting rod is consistent with the first adjusting connecting rod in structure, and the forward and backward movement distance of the material pushing claw can be adjusted by adjusting the length of the second adjusting connecting rod.

Preferably, the downward pressing connecting rod assembly is provided with a first downward pressing connecting rod, a second downward pressing connecting rod, a third downward pressing connecting rod, a fourth bearing and a fifth bearing; one end of the first downward pressing connecting rod is fixed below the rack, and the other end of the first downward pressing connecting rod is connected with one end of the second downward pressing connecting rod; a fourth bearing is arranged in the middle of the first downward pressing connecting rod and is in contact with the downward pressing cam; the other end of the second downward pressing connecting rod is connected to the middle position of the third downward pressing connecting rod, one end of the third downward pressing connecting rod is fixed on the guard plate, the fifth bearing is installed at the other end of the third downward pressing connecting rod, and the fifth bearing is in contact with the sliding block; the pushing cam moves to drive the pushing connecting rod to move, and then the pushing claw is driven to move.

Preferably, the power assembly is provided with a driving wheel, a driven wheel, a clutch seat and a displacement sensor, the driving wheel is mounted on the speed regulation motor, the driven wheel is mounted on the main shaft, and the driving wheel and the driven wheel are connected by a belt; the clutch is provided with a clutch plate and a clutch push rod, the clutch plate is arranged on the spindle, one end of the clutch push rod is connected with the clutch plate, and the displacement sensor is arranged at the other end of the clutch push rod; the displacement sensor is interlocked with the sensor of the material loading track assembly, when the sensor detects that the upper assembly parts of the material loading track and the material unloading track are conveyed completely, the sensor feeds back a signal to the displacement sensor, and the displacement sensor pushes a clutch push rod of the clutch to enable the clutch plates to be disengaged, so that the spindle stops running.

Compared with the prior art, the spot welding cooling device has the advantages that the spot welding cooling device is provided with the base, the material loading track assembly, the spot welding cooling assembly, the driving assembly, the driven assembly, the connecting rod assembly and the power assembly, and the connecting rod assembly is connected with the driving assembly and the driven assembly; the power assembly drives the driving assembly to operate; the power assembly is provided with a cam structure, and the cam structure drives the material distributing slide block and the material pushing claw to do reciprocating motion by means of transmission of the connecting rod assembly; the pushing claw pushes the assembly to advance intermittently; welding the assembly part by a spot welding machine of the spot welding cooling assembly at the interval of intermittent advancing of the assembly part; the blowing group makes the welded assembly part conveying line realize the purpose of intermittent advancing of the assembly part by utilizing a cam structure, welding operation items can be added on the conveying line in the intermittent conveying gap of the assembly part, and the blowing group is added after the welding is finished to quickly cool the welding part; one or more operation items are added on the intermittent assembly part conveying line, so that the operation efficiency of the assembly line operation can be improved, and the consumption of manpower and material resources is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the overall structure of the present invention;

FIG. 4 is a schematic view of the spindle structure of the present invention;

FIG. 5 is a schematic view of the distribution cam structure of the present invention;

FIG. 6 is a schematic view of a pusher cam configuration according to the present invention;

FIG. 7 is a schematic view of the structure of the push cam of the present invention;

FIG. 8 is a schematic view of the structure of the distributing slider of the present invention;

FIG. 9 is a schematic view of the combination slider and pusher grip assembly of the present invention;

FIG. 10 is a schematic view of a connecting rod assembly of the present invention.

Reference numerals:

1. a base; 21. a feeding track; 22 blanking tracks; 23. a speed-adjustable motor; 24. an idler pulley; 25. a flat belt; 26. a sensor; 31. a frame; 32. a spot welder; 33. a blowing group; 34. a guard plate; 41. a main shaft; 42. a material distributing cam; 43. a push cam; 44. pressing down the cam; 51. a material distributing slide block; 52. a combined slide block; 53. a material pushing claw; 61. a distribution connecting rod assembly; 611. a material distributing connecting rod; 612. distributing a material and fixing a shaft; 613. a first adjusting link; 621. a propulsion link; 622. a fulcrum; 623. a slide base; 631. a first hold-down link; 632. a second hold-down link; 633. a third press-down link; 62. a propulsion link assembly; 63. a push-down connecting rod assembly; 71. a driving wheel; 72. a driven wheel; 73. a clutch; 74. a clutch seat; 75. and a displacement sensor.

Detailed Description

The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.

In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be described in detail with reference to the accompanying drawings.

Example 1: as shown in fig. 1 to 3, an automatic spot welding device for an electronic product assembly is provided with a base 1, a material loading track assembly, a spot welding cooling assembly, a driving assembly, a driven assembly, a connecting rod assembly and a power assembly; the loading track assembly is provided with a loading track 21, a blanking track 22, a speed regulating motor 23, an idler wheel 24, a flat belt 25 and a sensor 26; the spot welding cooling assembly is provided with a frame 31, a spot welding machine 32, a blowing group 33 and a protective plate 34; the rack 31 is mounted on the base 1, the feeding rail 21 and the discharging rail 22 are mounted on the rack 31, and the discharging rail 22 is positioned in front of the feeding rail 21; two ends of a track groove of the feeding track 21 are respectively provided with a pulley, and two sides of the track groove of the discharging track are provided with grooves; the speed regulating motor 23 and the idle wheel 24 are arranged below the frame 31; the flat belt connects the pulleys at two ends of the track groove of the feeding track, the speed regulating motor 23 and the idle wheel 24; the sensors 26 are arranged at the feeding end of the feeding rail 21 and the discharging end of the discharging rail 22, and the sensors 26 monitor the operation condition of the assembly parts of the loading rail and are interlocked with the displacement sensors 75; the spot welding machine 32 and the air blowing group 33 are installed on the rack, air outlets of the spot welding machine 32 and the air blowing group 33 are inserted into grooves on two sides of a track groove of the blanking track, the spot welding machine 32 does not have assembly piece spot welding in the blanking track groove, and the air blowing group 33 blows air to the assembly piece after electric welding for cooling; the guard plates 34 are arranged on two sides of the blanking track groove; the driving component is provided with a main shaft 41, a material distributing cam 42, a pushing cam 43 and a pressing cam 44; the main shaft 41 is arranged below the frame 31, and the distributing cam 42, the pushing cam 43 and the pressing cam 44 are arranged on the main shaft 41; the main shaft 41 is connected with the speed regulating motor 23 through a power assembly, and the speed regulating motor 23 provides power to drive the driving assembly to run; the driven assembly is provided with a material distributing slide block 51, a combined slide block 52 and a material pushing claw 53; the material distributing slide block 51 is mounted on a material distributing slide way on the rack 31, the combined slide block 52 is mounted on the rack 31, and the material pushing claw 53 is mounted on the combined slide block 52; the material pushing claw is positioned above the blanking track 22; the connecting rod assembly is provided with a distributing connecting rod assembly 61, a propelling connecting rod assembly 62 and a downward pressing connecting rod assembly 63; one end of the distributing connecting rod assembly 61 is fixed on the base 1, and the other end is connected with the distributing sliding block, and the distributing connecting rod assembly is provided with a distributing connecting rod 611 and a distributing dead axle 612; the distributing dead axle 612 is mounted on the distributing connecting rod 611; the distributing fixed shaft 612 is in contact with the distributing cam 42; the propelling connecting rod assembly 62 is provided with a propelling connecting rod 621, a fulcrum 622 and a sliding seat 623, the fulcrum 622 is mounted on the propelling connecting rod 621, the sliding seat 623 is mounted on the frame 31, the fulcrum 622 is connected with the sliding seat 623, and a fourth bearing is arranged at the connecting position of the fulcrum 622 and the sliding seat 623; one end of the propelling connecting rod assembly is connected with the combined sliding block, and the other end of the propelling connecting rod assembly is provided with a third bearing which is in contact with the propelling cam; the downward pressing connecting rod component is provided with a first downward pressing connecting rod 631, a second downward pressing connecting rod 632, a third downward pressing connecting rod 633, a fifth bearing and a sixth bearing; one end of the first push-down link 631 is fixed below the frame, and the other end is connected with one end of the second push-down link 632; the other end of the second push-down connecting rod 632 is connected to the middle position of the third push-down connecting rod 633, a fifth bearing is arranged at the middle position of the first push-down connecting rod, the fifth bearing is in contact with the push-down cam, one end of the third push-down connecting rod is fixed on the guard plate 34, a sixth bearing is installed at the other end of the third push-down connecting rod, and the sixth bearing is in contact with the sliding plate of the combined sliding block; the power assembly is provided with a driving wheel 71, a driven wheel 72, a clutch 73, a clutch seat 74 and a displacement sensor 75; the driving wheel 71 is mounted on the speed regulating motor 23, the driven wheel is mounted on the main shaft 41, and the driving wheel 71 and the driven wheel 72 are connected by a belt; the speed regulating motor 23 rotates to drive the main shaft 41 to rotate, and the main shaft 41 rotates to drive the material distributing cam 42, the pushing cam 43 and the pressing cam 44 to rotate; the distributing cam 42 drives the distributing slide block 51 to move left and right on the distributing slide way by means of transmission of the distributing connecting rod assembly 61; the propelling cam 43 is driven by a propelling connecting rod component 62 to drive the vertical slide way of the combined slide block 52 to move back and forth on the horizontal slide way; the downward-pressing cam 44 is driven by a downward-pressing connecting rod component 63 to drive the sliding block of the combined sliding block 52 to move up and down on the vertical slideway; the material distributing slide block reciprocates left and right to convey the assembly parts on the feeding rail 21 to the blanking rail 22, and the combined slide block 52 drives the material pushing claw 53 to reciprocate downwards, forwards, upwards and backwards to push the assembly parts of the blanking slide block to intermittently advance; the clutch plate of the clutch 73 is mounted on the main shaft 41; the displacement sensor 75 is mounted on the clutch seat 74, and the sensor 75 is mounted on a clutch push rod of the clutch; the displacement sensor 75 is interlocked with the sensor 26, when the sensor 26 detects that no assembly part exists on the loading track, a signal is transmitted to the displacement sensor 75, the displacement sensor 75 pushes the clutch push rod to release the clutch plate of the clutch, and the loading system stops running.

Example 2: if the flat belt is directly connected with the feeding rail and the speed regulating motor, the friction force of the flat belt in operation on the feeding rail is large, and the kinetic energy loss is increased, so that the pulleys are arranged at the two ends of the feeding rail, the friction of the flat belt in operation can be reduced, and the kinetic energy loss is reduced; if no idler pulley is arranged, the tension degree of the flat belt can not be adjusted, and the belt operation is influenced, so that the idler pulley is added, and the tension degree of the flat belt can be adjusted at any time.

Example 3: as shown in fig. 5 and 10, in order to realize that the distributing slide block can move left and right on the distributing slide way, a distributing connecting rod assembly and a distributing cam are arranged, and one end of the distributing connecting rod is fixed on the base; the material distributing fixed shaft is contacted with the material distributing cam, in the rotating process of the material distributing cam, the material distributing cam is used as a fulcrum by taking the connecting position of the material distributing connecting rod and the base as well as the material distributing connecting rod as a lever to drive the adjusting connecting rod and the material distributing slide block to move, when the material distributing fixed shaft slides from a low point to a high point on the material distributing cam, the material distributing connecting rod drives the material distributing slide block to move leftwards, and when the material distributing fixed shaft slides from the high point to the low point on the material distributing cam, the material distributing connecting rod drives the material distributing slide block to move rightwards.

Example 4: as shown in fig. 6 and 10, in order to realize the forward and backward movement of the pushing claw, a pushing link assembly and a pushing cam are provided, the pushing link assembly is provided with a pushing link, a fulcrum and a sliding seat, the fulcrum is mounted on the pushing link, the sliding seat is mounted on the rack, a fourth bearing is arranged at a position where the fulcrum is connected with the sliding seat, the third bearing pushes the link to drive the vertical slideway to slide backwards on the horizontal slideway when sliding from a low point to a high point on the pushing cam, and the pushing link drives the vertical slideway to slide forwards on the horizontal slideway when sliding from the high point to the low point on the pushing cam.

Example 5: as shown in fig. 7 and 10, in order to realize the up-and-down movement of the pushing claw, a downward pressing connecting rod assembly and a downward pressing cam are provided, and the downward pressing connecting rod assembly is provided with a first downward pressing connecting rod, a second downward pressing connecting rod, a third downward pressing connecting rod, a fifth bearing and a sixth bearing; one end of the first pressing connecting rod is fixed below the rack, the other end of the first pressing connecting rod is connected with the second pressing connecting rod, the fifth bearing is installed in the middle of the first pressing connecting rod, and the fifth bearing is in contact with the pressing cam; the other end of the second pressing connecting rod is connected with the middle position of a third pressing connecting rod, one end of the third pressing connecting rod is fixed on the guard plate, a sixth bearing is installed at the other end of the third pressing connecting rod, and the sixth bearing is in contact with the sliding block; when the pressing cam moves, the fixing point of the first pressing connecting rod and the rack is taken as a first fulcrum, the first pressing connecting rod is taken as a first lever, the connecting position of the third pressing connecting rod and the guard plate is taken as a second fulcrum, and the third pressing connecting rod is taken as a second lever; when the fifth bearing slides from a low point to a high point on the downward pressing cam, the downward pressing connecting rod assembly drives the sliding block to slide upwards on the vertical slideway, and when the fifth bearing slides from the high point to the low point on the downward pressing cam, the downward pressing connecting rod assembly drives the sliding block to slide downwards on the vertical slideway.

Example 6: if the length of the connecting rod cannot be adjusted, the movement distance of the material distribution slide block is too large or too small, so that the material loading groove of the material distribution slide way cannot be aligned with the track groove of the feeding track or the blanking track, and the assembly piece cannot be conveyed through the material distribution slide way; therefore, the material distribution connecting rod assembly is provided with a first adjusting connecting rod 613, the middle part of the first adjusting connecting rod 613 is a double-end lead screw, the two ends of the first adjusting connecting rod 613 are fisheye joints, and the length of the first adjusting connecting rod can be adjusted by adjusting the fisheye joints at the two ends, so that the movement distance of the material distribution sliding block is controlled; the second adjusting connecting rod is the same as the first adjusting connecting rod in structure, the forward and backward movement distance of the material pushing claw can be adjusted by adjusting the length of the second adjusting connecting rod, and the stop position of the assembling part is ensured to correspond to the positions of a spot welding station of the spot welding machine and an air outlet of the air blowing group.

Example 7: as shown in fig. 9, in order to ensure that the pushing claw can move back and forth in the horizontal direction and also can move up and down in the vertical direction, and can return to the original point after moving in a cycle period, a combined sliding block is arranged; the combined sliding block is provided with a horizontal slideway, a vertical slideway and a sliding block; the vertical slide way is arranged on the horizontal slide way, the sliding block is arranged on the vertical slide way, the pushing claw is arranged on the sliding block, the sliding block drives the pushing claw to move up and down when moving up and down on the vertical slide way, the sliding block and the pushing claw are driven to move back and forth simultaneously when the vertical slide way moves back and forth on the horizontal slide way, and after the pushing claw performs a cycle of movement of going down, going forward, going up and going back, the relative position of the pushing claw and the combined slide block fixing plate is kept unchanged; therefore, the combined sliding block is added, so that the pushing claw can move back and forth and up and down, and can return to the original position after the movement of one cycle period is finished.

The working principle of the invention is as follows: when the assembly part moves leftwards, when the material carrying groove is aligned with the blanking track, the lower pressing cam drives the material pushing claw to move downwards, and then the pushing cam drives the material pushing claw to move forwards; the pushing claw moves upwards and backwards to return to the original position along with the change of the contact positions of the third bearing and the fifth bearing with the pushing cam and the pressing cam when the main shaft rotates; the speed regulating motor drives the flat belt and the main shaft to continuously run, and the flat belt continuously conveys the assembly part forwards; the main shaft drives the material distribution cam, the pushing cam and the pressing cam to continuously rotate, the material distribution cam drives the material distribution sliding block to move left and right periodically, the pushing cam and the pressing cam drive the material pushing claw to move downwards, forwards, upwards and backwards periodically, and then the assembly part is driven to move forwards intermittently; welding and blowing cooling the assembly parts reaching the corresponding positions by the spot welding machine and the blowing group; when the sensor detects that the feeding rail and the discharging rail are not provided with the assembly parts, a signal is transmitted to the displacement sensor, the displacement sensor pushes the clutch push rod to disengage the clutch plates, and the equipment stops running.

Claims

1. An automatic spot welding device for electronic product assembly parts is characterized by comprising a base, a material loading track component, a welding cooling component, a driving component, a driven component, a connecting rod component and a power component; the welding cooling assembly is provided with a rack, a spot welding machine and a blowing group, and the rack is mounted on the base; the spot welding machine and the blowing group are arranged on the frame; the material loading track assembly is arranged on the rack; the active component is arranged at the lower part of the frame; the driven assembly is mounted on the frame; the connecting rod assembly is connected with the driving assembly and the driven assembly; the power assembly drives the driving assembly to operate, the driving assembly drives the connecting rod assembly to move, the connecting rod assembly pushes the driven assembly to move, and the driven assembly pushes the assembly part to move on the loading track.

2. The stitch welding device of an electronic product assembly according to claim 1, wherein the loading track assembly is provided with a loading track, a blanking track, a speed regulating motor, an idler, a flat belt and a sensor; two ends of the rail groove of the feeding rail are respectively provided with a pulley; the blanking track is provided with a groove, and the groove is positioned on the edge of the blanking track; guard plates are arranged on two sides of the blanking track, and holes are formed in the guard plates; the feeding track and the discharging track are both arranged on the rack; the blanking track is positioned in front of the feeding track; the speed regulating motor is arranged below the rack, the idler wheel is arranged below the rack, and the flat belt is connected with the feeding track, the speed regulating motor and the idler wheel; the sensors are arranged at the feeding end of the feeding rail and the discharging end of the discharging rail.

3. The automated spot welding device of an electronic product assembly according to claim 2, wherein the spot welding cooling assembly is provided with a frame, a spot welder and a blowing group; the machine frame is provided with a material distribution slideway, a first main shaft fixing plate, a second main shaft fixing plate and a combined slide block fixing plate; the material distribution slide way is positioned between the discharge end of the feeding track and the feed end of the discharging track; the first main shaft fixing plate and the second main shaft fixing plate are positioned at the left side and the right side below the rack; the combined slide block fixing plate is positioned on the left side of the blanking track; the spot welding machine is arranged at the feeding end of the blanking track; the blowing groups are distributed on two sides of the blanking track; and the welding gun of the spot welding machine and the air outlet of the air blowing group penetrate through the hole of the protective plate and are inserted into the groove.

4. The stitch welding device of an electronic product assembly according to claim 3, wherein the driving member is provided with a main shaft, a distributing cam, a pushing cam and a pressing cam; the main shaft is arranged on the first main shaft fixing plate and the second main shaft fixing plate, and a first bearing and a second bearing are respectively arranged at the contact positions of the main shaft and the first main shaft fixing plate as well as the second main shaft fixing plate; the material distributing cam, the pushing cam and the pressing cam are arranged on the main shaft; the material distributing cam is positioned on the outer side of the first main shaft fixing plate, and the pushing cam and the pressing cam are positioned on the inner side of the first main shaft fixing plate.

5. The stitch welding device of an electronic product assembly according to claim 2, wherein the driven component is provided with a material distributing slide block, a combining slide block and a material pushing claw; the material distributing slide block is provided with a material loading groove and is arranged on the material distributing slide way; the combined sliding block is provided with a horizontal slideway, a vertical slideway and a sliding block; the horizontal slide way is installed on the combined slide block fixing plate, the vertical slide way is in sliding connection with the horizontal slide way, the slide block is in sliding connection with the vertical slide way, and the pushing claw is installed on the slide block; the material pushing claw is positioned above the track groove of the blanking track.

6. The stitch welding apparatus for an electronic product assembly according to claim 4 or 5, wherein the connecting rod assembly is provided with a feed connecting rod assembly, a push connecting rod assembly and a push connecting rod assembly; the distributing connecting rod assembly is connected with the distributing sliding block and the distributing cam; the propelling connecting rod component is connected with the vertical slideway and the propelling cam; the push-down connecting rod assembly is connected with the sliding block and the push-down cam.

7. The stitch welding device of an electronic product assembly according to claim 6, wherein the dispensing link assembly is provided with a dispensing link, a dispensing dead axle and a first adjusting link; one end of the material distributing connecting rod is fixed on the base, the other end of the material distributing connecting rod is connected with one end of the first adjusting connecting rod, and the other end of the first adjusting connecting rod is connected with the material distributing sliding block; the material distributing fixed shaft is arranged on the material distributing connecting rod and is contacted with the material distributing cam.

8. The stitch welding device of an electronic product assembly according to claim 6, wherein the pushing link assembly is provided with a pushing link, a second adjusting link, a fulcrum, a sliding seat, a third bearing and a fourth bearing; the third bearing is arranged at one end of the propelling connecting rod, and the other end of the propelling connecting rod is connected with one end of the second adjusting connecting rod; the other end of the second adjusting connecting rod is connected with the vertical slideway, and the third bearing is in contact with the propelling cam; the fulcrum is mounted on the propelling connecting rod, the sliding seat is mounted on the rack, the fulcrum is connected with the sliding seat, and a fourth bearing is arranged at the connecting position of the fulcrum and the sliding seat.

9. The stitch welding device of an electronic product assembly according to claim 6, wherein the hold-down link assembly is provided with a first hold-down link, a second hold-down link, a third hold-down link, a fourth bearing and a fifth bearing; one end of the first downward pressing connecting rod is fixed below the rack, and the other end of the first downward pressing connecting rod is connected with one end of the second downward pressing connecting rod; a fourth bearing is arranged in the middle of the first downward pressing connecting rod and is in contact with the downward pressing cam; the other end of the second pressing connecting rod is connected to the middle position of the third pressing connecting rod, one end of the third pressing connecting rod is fixed to the guard plate, the fifth bearing is installed at the other end of the third pressing connecting rod, and the fifth bearing is in contact with the sliding block.

10. The stitch welding device of an electronic product assembly according to claim 4, wherein the power assembly is provided with a driving wheel, a driven wheel, a clutch seat and a displacement sensor; the driving wheel is mounted on the speed-regulating motor, the driven wheel is mounted on the main shaft, and the driving wheel and the driven wheel are connected by a belt; the clutch is provided with a clutch plate and a clutch push rod, the clutch plate is arranged on the spindle, and the clutch plate is positioned between the driven wheel and the pressing cam; one end of the clutch push rod is connected with the clutch plate, and the displacement sensor is arranged at the other end of the clutch push rod; the clutch seat is arranged on the base; the displacement sensor is fixed on the clutch base.