CN115415653A

CN115415653A - Spot welding device and method with limiting structure for processing electronic components

Info

Publication number: CN115415653A
Application number: CN202211244846.0A
Authority: CN
Inventors: 史晓流
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-12-02

Abstract

The invention relates to the technical field of spot welding of electronic components, in particular to a spot welding device with a limiting structure for processing the electronic components, which comprises a workbench, a rotating disc, a position adjusting mechanism and a spot welding mechanism, wherein the workbench is arranged on the workbench; the rotating disc is rotatably arranged on the workbench and provided with a plurality of first round holes, and four arc-shaped clamping plates capable of synchronously moving towards the axes of the corresponding first round holes are arranged in each first round hole; the spot welding mechanism comprises a mounting cylinder capable of moving along the vertical direction; the bottom of the mounting cylinder is rotatably provided with a plurality of buffer discs capable of moving back and forth along the vertical direction, and each buffer disc is provided with a spot welding pen; electronic components of different specifications are fixed through the arc grip block, through position adjustment mechanism and buffer disc, spot welding is carried out to a plurality of welding position on electronic components, avoids spot welding pen and electronic components's rigid contact through the buffer disc.

Description

Spot welding device and method with limiting structure for processing electronic components

Technical Field

The invention relates to the technical field of spot welding of electronic components, in particular to a spot welding device with a limiting structure for processing the electronic components, and further relates to a using method of the spot welding device with the limiting structure for processing the electronic components.

Background

The existing spot welding device for processing the electronic components has certain disadvantages in the using process, and the traditional spot welding device for processing the electronic components adopts a fixed structure design, so that the traditional spot welding device for processing the electronic components cannot be suitable for different types of electronic components, and the flexibility of the traditional spot welding device for processing the electronic components in use is reduced; in the spot welding process, spot welding straight direct contact electronic components can damage electronic components to electronic components is last to have a plurality of welding points, and current electronic components can only carry out spot welding to single welding point mostly, and after accomplishing single welding position spot welding, spot welding position need be adjusted, and very big influence electronic components's spot welding efficiency like this leads to spot welding time overlength.

Disclosure of Invention

To the problem that prior art exists, a spot welding device with limit structure is used in electronic components processing is provided, can carry out the centre gripping to the electronic components of different specifications through being provided with four arc grip blocks and fix, improve the stability among the spot welding process, through first slide rail, linear actuator, the cooperation of dwang and second slide rail, according to electronic components's different welding position, adjust the position of a plurality of spot welding pens, thereby can carry out spot welding to a plurality of welding position of electronic components in step, improve welding efficiency, through being provided with buffering subassembly, avoid the direct rigid contact with electronic components of spot welding pen, cause electronic components's damage, through rotating the rolling disc that sets up on the workstation, thereby realize continuous spot welding.

In order to solve the problems of the prior art, the invention adopts the technical scheme that:

a spot welding device with a limiting structure for processing electronic components comprises a workbench, a rotating disc, a position adjusting mechanism and a spot welding mechanism;

the rotating disc is arranged on the workbench in a horizontal state and can rotate, a plurality of first round holes are formed in the edge of the top of the rotating disc, and a clamping mechanism for clamping a motor element is arranged in each first round hole;

each clamping mechanism comprises four arc-shaped clamping rods capable of synchronously moving towards the axis of the corresponding first round hole, the arc-shaped clamping rods are arranged at equal intervals along the axis of the corresponding first round hole, and an arc-shaped clamping plate is arranged at one end, close to the corresponding first round hole, of each arc-shaped clamping rod;

the position adjusting mechanism is arranged on the workbench;

the position adjusting mechanism comprises a supporting frame and a first sliding rail;

the two support frames are arranged on two sides of the top of the workbench in a vertical state, the first slide rail is arranged in a horizontal state, two ends of the first slide rail are arranged on the tops of the corresponding support frames, and the opening end of the first slide rail faces the direction of the rotating disc;

a first sliding block is arranged in the first sliding rail in a sliding mode, a linear driver is arranged on the first sliding block, an execution part of the linear driver faces to the direction far away from the sliding rail, and the driving direction of the linear driver is perpendicular to the length direction of the first sliding rail;

the spot welding mechanism is arranged on an execution part of the linear driver;

the spot welding mechanism comprises a mounting cylinder capable of moving back and forth along the vertical direction; the installation cylinder is arranged in a vertical state, a plurality of installation holes are formed in the bottom of the installation cylinder along the circumferential direction, a rotating rod is rotatably arranged in each installation hole, a second sliding rail is arranged at one end, away from the installation holes, of each rotating rod, the second sliding rail is arranged in a horizontal state, and the opening end of the second sliding rail faces the direction close to the workbench;

a second sliding block is arranged in each second sliding rail in a sliding mode, and a buffering assembly is arranged at the center of the bottom of each second sliding block;

every buffering subassembly is including the buffering dish that can reciprocate along vertical direction, and the buffering dish is the horizontality setting, and every buffering dish center department is provided with vertical downwardly extending's spot welding pen.

Preferably, each clamping mechanism further comprises a rotating disc;

a second round hole extending vertically downwards is formed in the bottom of each first round hole, and the second round holes and the first round holes are coaxially arranged;

the radius of the second round hole is larger than the closest distance between the axis of the first round hole and the outer wall of the rotating disc;

the rotating disc is arranged in the second round hole in a horizontal state in a rotatable manner, and the rotating disc and the second round hole are coaxially arranged;

a contact disc is arranged at the center of the top of the rotating disc, and four arc-shaped contact blocks are arranged on the outer wall of the contact disc;

the inner wall of the first round hole is provided with a first hinge part along the circumferential direction, and the arc-shaped clamping rod is hinged with the corresponding first hinge part;

one end of each arc clamping rod, which is far away from the arc clamping plate, is provided with a touch rod, the touch rods are arranged in a horizontal state, and the touch rods contact the corresponding arc touch blocks;

a plurality of mounting plates are arranged on the outer wall of the rotating disc along the circumferential direction;

a plurality of clamping grooves are formed in the edge of the top of the rotating disc;

one side of the bottom of each mounting plate is provided with a second hinged portion, each second hinged portion is hinged with a clamping claw, and one end, far away from the second hinged portion, of each clamping claw is arranged in a clamping groove of the corresponding rotating disk and used for limiting the rotating disk.

Preferably, each mounting plate is also provided with a pressing mechanism for enabling the clamping claws to contact the clamping grooves all the time;

the pressing mechanism comprises an inclined column, a pressing column and a pressing spring;

the inclined column is arranged at one end of the bottom of the mounting plate away from the first hinge part at a certain angle, a guide hole is formed in one end of the inclined column away from the mounting plate, the guide hole faces the direction close to the corresponding clamping claw, and the pressing column is slidably arranged in the guide hole;

the compression spring is arranged in the guide hole, and two ends of the compression spring are respectively contacted with the compression column and the inner wall of the bottom of the guide hole;

and a third hinge part is arranged at one end of each clamping jaw, which is far away from the rotating disc, and one end of each compression column, which is far away from the guide hole, is hinged with the third hinge part.

Preferably, a positioning mechanism for placing an electronic component is further arranged in each first round hole;

each positioning mechanism comprises a connecting column and a lifting column;

a plurality of positioning rods are arranged on the outer wall of the connecting column at equal intervals, and one end of each positioning rod, which is far away from the connecting column, is arranged on the inner wall of the first round hole;

a first through hole is formed in the center of the connecting column, a threaded rod which extends vertically and upwards is arranged in the center of the abutting disc, and the threaded rod is arranged in the center of the first through hole; two first sliding grooves are formed in the inner wall of the first through hole and arranged in a mirror image mode relative to the axis of the first through hole;

the outer wall of one end of the lifting column is provided with a first sliding strip matched with the first sliding groove, the first sliding strip can be arranged in the corresponding first sliding groove in a sliding mode, and the lifting column can be arranged in the first through hole in a sliding mode;

a first threaded hole is formed in the center of the bottom of the lifting column and is in threaded connection with the threaded rod;

the top of the lifting column is provided with a placing plate for placing electronic components.

Preferably, a connecting ring is further arranged at the edge of the top of each rotating disc, a fixed rod is further arranged on each mounting plate, a tension spring is arranged between each fixed rod and the connecting ring, and two ends of each tension spring are respectively arranged on the connecting ring and the fixed rod;

an annular avoiding groove for avoiding the tension spring is formed in the inner wall of the top of the second round hole;

the rotary table is characterized in that a support rod is arranged on the working table, the support rod is arranged in a vertical state, an intercepting rod is arranged at the top of the support rod, the intercepting rod is arranged in a horizontal state, and the height of the bottom of the intercepting rod is the same as that of the top of the rotary disc.

Preferably, the bottom of the workbench is provided with a first servo motor, the first servo motor is arranged in a vertical state, and an output shaft of the first servo motor penetrates through the workbench to be arranged at the center of the bottom of the rotating disc.

Preferably, the position adjusting mechanism further comprises a second servo motor and a screw rod;

the screw rod can be rotatably arranged in the first slide rail, and the length direction of the screw rod is the same as the length direction of the first slide rail;

the second servo motor is arranged at one end of the first slide rail, and an output shaft of the first servo motor penetrates through the first slide rail and is connected with one end of the screw rod;

one end of the first sliding block along the length direction of the first sliding rail is provided with a second threaded hole matched with the screw rod, and the second threaded hole is in threaded connection with the screw rod.

Preferably, the spot welding mechanism further comprises a mounting frame, a cylinder, a rotating ring, a return spring and a limiting bolt;

the mounting rack is arranged in a vertical state, and the execution part of the linear driver is arranged at the center of one side of the mounting rack;

the cylinder is arranged in the mounting frame and is arranged in a vertical state, and the execution part of the cylinder penetrates through the mounting frame and is arranged at the center of the top of the mounting cylinder;

the outer wall of each rotating rod is provided with two guide grooves which are arranged in a mirror image mode relative to the axis of the rotating rod;

the rotating rings are sleeved on the corresponding rotating rods and are arranged in a horizontal state, and two guide blocks corresponding to the guide grooves are arranged on the inner wall of each rotating ring;

the reset springs are sleeved on the corresponding rotating rods, and two ends of each reset spring are in contact with the corresponding rotating ring and the corresponding second sliding rail;

the top of each rotating ring is provided with a rectangular bulge along the circumferential direction, and the bottom of the mounting cylinder is provided with a rectangular groove corresponding to the rectangular bulge along the circumferential direction;

the outer wall of each rotating ring is provided with a plurality of anti-slip strips along the circumferential direction;

a strip-shaped notch is formed in one side of each second sliding rail along the length direction, and a third threaded hole is formed in one side, close to the strip-shaped notch, of each second sliding block;

the limiting bolts penetrate through the corresponding strip-shaped notches and are in threaded connection with the corresponding third threaded holes.

Preferably, each buffer component further comprises a connecting rod, a connecting disc, a supporting column, a buffer spring and a limiting ring;

the connecting rod is arranged in a vertical state and is arranged at the center of the bottom of the corresponding second sliding block;

the connecting disc is arranged in a horizontal state, and one end of the connecting rod, which is far away from the second sliding block, is arranged at the center of the top of the connecting disc;

the supporting columns are arranged at the bottom of the connecting disc in a vertical state and are arranged at equal intervals along the circumferential direction of the connecting disc;

a third round hole is formed in the center of one end, far away from the connecting disc, of each supporting column, two second sliding grooves are formed in the inner wall of each third round hole, and the two second sliding grooves are arranged in a mirror image mode relative to the axis of the third round hole;

a plurality of buffer columns are arranged, one end of each buffer column is provided with two second sliding strips corresponding to the second sliding grooves, the second sliding strips can be arranged in the corresponding second sliding grooves in a sliding manner, and the buffer columns can be arranged in the corresponding third round holes in a sliding manner;

one end of each buffer column, which is far away from the third round hole, is arranged at the edge of the top of the buffer disc;

the buffer springs are arranged in the corresponding third round holes, and two ends of each buffer spring are in contact with the corresponding buffer column and the inner wall of the bottom of the corresponding third round hole;

the limiting rings are arranged at one ends, far away from the connecting disc, of the corresponding supporting columns, and second through holes only allowing the buffer columns to penetrate through are formed in the centers of the limiting rings;

the buffer column can be arranged in the second through hole in a sliding mode.

A use method of a spot welding device with a limiting structure for processing electronic components comprises the following steps:

s1, placing an electronic component at the center of a placing plate by a worker, then, rotating a rotating disc, wherein the rotating disc drives a touch plate to rotate, so that a plurality of arc-shaped clamping plates can clamp the electronic component, a threaded rod drives the placing plate to move downwards, and a clamping claw extends into a clamping groove to fix the rotating disc;

s2, starting a first servo motor, driving a rotating disc to rotate by the first servo motor, moving the position of the clamped electronic component, sequentially adjusting a linear driver, a second servo motor, a rotating ring and a limiting bolt according to the welding position of the electronic component, so that a spot welding pen is positioned right above the welding position of the electronic component, then loosening the rotating ring, clamping the rectangular protrusion and the rectangular groove with each other, limiting the rotating ring, and limiting a second sliding block by the limiting bolt;

s3, starting the air cylinder, and carrying out spot welding on a plurality of welding positions of the electronic component;

s4, after spot welding is finished, starting a first servo motor to drive a rotating disc to rotate, lifting a blocking claw of the blocking rod out of a blocking groove, automatically aligning the rotating disc under the action of elastic force of a tension spring, loosening the spot-welded electronic component by using an arc-shaped clamping plate, and pushing a lifting rod to move upwards by using a threaded rod so as to place the spot-welded electronic component on a placing plate;

and S5, taking out the electronic component subjected to spot welding by a worker, putting in a new electronic component, repeating the steps of S1 and S3, and carrying out continuous spot welding.

Compared with the prior art, the beneficial effect of this application is:

1. this application can carry out the centre gripping to the electronic components of different specifications through being provided with four arc grip blocks and fix, improve the stability of spot welding in-process, through first slide rail, linear actuator, the cooperation of dwang and second slide rail, according to electronic components's different welding position, adjust the position of a plurality of spot welding pens, thereby can carry out spot welding to a plurality of welding position of electronic components in step, welding efficiency is improved, through being provided with buffering subassembly, avoid the direct and electronic components's of spot welding pen rigid contact, cause electronic components's damage, through rotating the rolling disc that sets up on the workstation, thereby realize continuous spot welding.

2. This application is through adjusting the rotary disk, the rotary disk drives and supports the touch panel and rotate, the conflict pole slides along the outer wall that the arc supported the touch piece, thereby make a plurality of arc grip blocks can move towards being close to second round hole axis direction in step, it is fixed to carry out the centre gripping to the electronic components of different specifications, through be provided with the mounting panel on the rotary disk, it has the joint claw to articulate on the mounting panel, joint claw and joint groove cooperation, thereby it is spacing to the rotary disk, avoid at the in-process of spot welding, because rocking of the rotary disk, lead to electronic components to produce and rock.

3. The utility model provides a through being provided with extension spring, bracing piece and interception pole, the staff only need rotate the rotary disk towards a direction, the interception pole lifts the joint claw from the joint inslot, under the effect of extension spring, the rotary disk returns automatically just to make a plurality of arc grip blocks loosen electronic components, under the effect of lift post, electronic components is accepted on placing the board, thereby can be automatic shift out electronic components from between the arc grip block, reduce the operating procedure in the staff, improve spot welding efficiency.

4. This application is through swivel becket and reset spring's cooperation to adjust the position of second slide rail, rectangle arch and rectangle recess joint, thereby carry on spacingly to the bull stick, through spacing bolt, restrict the position of second slider, easy operation, the staff of being convenient for adjusts.

5. This application is through buffering post, support column and buffer spring's cooperation, when the point welding pen under the promotion of cylinder, the orientation removes near electronic components's direction, when the point welding pen contacts electronic components, the buffer disc rebound, buffering post extrusion buffer spring, thereby provide certain buffer space for the point welding pen, thereby avoid the point welding pen rigidity contact electronic components to lead to electronic components to produce the damage, and to the not high welding position, the buffer column can provide certain buffer space, thereby can make a plurality of point welding pens can weld in step.

Drawings

FIG. 1 is a perspective view of a spot welding device with a limiting structure for processing electronic components;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a side view of a spot welding apparatus with a limit structure for electronic component processing;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 3 at C;

FIG. 6 is a plan sectional view taken along the direction D-D of FIG. 3;

FIG. 7 is an enlarged view of a portion E of FIG. 6;

FIG. 8 is a perspective view of a rotary disk in a spot welding device with a limiting structure for processing electronic components;

FIG. 9 is a perspective view of a fixture in a spot welding apparatus with a limiting structure for electronic component processing;

fig. 10 is an exploded perspective view of a hold-down mechanism in a spot welding apparatus having a limit structure for electronic component processing;

FIG. 11 is an exploded perspective view of a positioning mechanism of a spot welding apparatus with a limiting structure for electronic component processing;

fig. 12 is a perspective view of a position adjusting mechanism in a spot welding device with a limiting structure for electronic component processing;

FIG. 13 is a perspective view of a mounting cylinder in a spot welding apparatus having a limiting structure for electronic component processing;

fig. 14 is an exploded perspective view of a rotary rod, a second slide rail, a rotary ring and a return spring in a spot welding device with a limiting structure for processing electronic components;

FIG. 15 is an exploded perspective view of a bumper assembly, a second slider, a limiting bolt and a spot welding pen in a spot welding apparatus with a limiting structure for electronic component processing;

fig. 16 is a flow chart of a method for using a spot welding device with a limiting structure for processing electronic components.

The reference numbers in the figures are:

1-a workbench; 11-a support bar; 12-a catch bar; 13-a first servo motor;

2-rotating the disc; 21-a first circular aperture; 211-a first hinge; 22-a second circular aperture; 23-mounting a plate; 231-a second hinge; 232-clamping claw; 2321-a third hinge; 233-fixing rods; 24-an annular avoidance groove;

3-a position adjustment mechanism; 31-a support frame; 32-a first slide rail; 321-a first slider; 3211-a second threaded hole; 33-a linear drive; 34-a second servo motor; 35-a screw rod;

4-spot welding mechanism; 41-mounting a barrel; 411-mounting holes; 412-rotating rods; 4121-a guide groove; 413-a rectangular groove; 42-a second slide rail; 421-a second slider; 4211-third threaded hole; 422-strip-shaped gaps;

43-a cushioning component; 431-a buffer disc; 432-a connecting rod; 433-connecting disc; 434-support columns; 4341-third round hole; 4342-second runner; 435-buffer column; 4351-second runner; 436-a buffer spring; 437-a limit ring; 4371-second perforation;

44-spot welding pen; 45-a mounting frame; 46-a cylinder; 47-a rotating ring; 471-a guide block; 472-rectangular protrusions; 473-antislip strips; 48-a return spring; 49-limit bolt;

5-a clamping mechanism; 51-arc clamping rods; 511-arc holding plate; 512-a touch bar; 52-rotating disk; 521-a clamping groove; 522-connecting ring; 523-tension spring; 53-a touch pad; 531-arc contact block; 532-threaded rod;

6-a pressing mechanism; 61-diagonal columns; 611-a guide hole; 62-a compression column; 63-a hold down spring;

7-a positioning mechanism; 71-connecting column; 711-positioning rod; 712-a first perforation; 713-first runner; 72-a lifting column; 721-a first slide; 722-a first threaded hole; 723-placing the plate.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 16, a spot welding device with a limiting structure for processing an electronic component includes a worktable 1, a rotating disc 2, a position adjusting mechanism 3 and a spot welding mechanism 4;

the rotating disc 2 is arranged on the workbench 1 in a horizontal state and can rotate, a plurality of first round holes 21 are formed in the edge of the top of the rotating disc 2, and a clamping mechanism 5 for clamping a motor element is arranged in each first round hole 21;

each clamping mechanism 5 comprises four arc-shaped clamping rods 51 capable of synchronously moving towards the axis of the corresponding first round hole 21, the arc-shaped clamping rods 51 are arranged at equal intervals along the axis of the corresponding first round hole 21, and an arc-shaped clamping plate 511 is arranged at one end, close to the corresponding first round hole 21, of each arc-shaped clamping rod 51;

the position adjusting mechanism 3 is arranged on the workbench 1;

the position adjusting mechanism 3 comprises a support frame 31 and a first slide rail 32;

the number of the support frames 31 is two, the two support frames 31 are arranged on two sides of the top of the workbench 1 in a vertical state, the first slide rail 32 is arranged in a horizontal state, two ends of the first slide rail 32 are arranged on the tops of the corresponding support frames 31, and the opening end of the first slide rail 32 faces the direction of the rotating disc 2;

a first sliding block 321 is arranged in the first sliding rail 32 in a sliding manner, a linear driver 33 is arranged on the first sliding block 321, an execution part of the linear driver 33 faces a direction far away from the sliding rail, and the driving direction of the linear driver 33 is perpendicular to the length direction of the first sliding rail 32;

the spot welding mechanism 4 is provided on the actuator of the linear actuator 33;

the spot welding mechanism 4 includes a mounting cylinder 41 capable of reciprocating in the vertical direction; the installation cylinder 41 is arranged in a vertical state, a plurality of installation holes 411 are formed in the bottom of the installation cylinder 41 along the circumferential direction, a rotating rod 412 is rotatably arranged in each installation hole 411, a second sliding rail 42 is arranged at one end, far away from the installation holes 411, of each rotating rod 412, the second sliding rail 42 is arranged in a horizontal state, and the opening end of the second sliding rail 42 faces the direction close to the workbench 1;

a second slide block 421 is slidably arranged in each second slide rail 42, and a buffer component 43 is arranged at the center of the bottom of each second slide block 421;

each buffer assembly 43 includes a buffer tray 431 capable of reciprocating in a vertical direction, the buffer tray 431 is disposed in a horizontal state, and a spot welding pen 44 vertically extending downward is disposed at the center of each buffer tray 431.

The staff places electronic components in first round hole 21, afterwards, adjust four arc supporting rods 51, be provided with arc grip block 511 on every arc supporting rod 51, four arc grip block 511 move towards first round hole 21 center department in step, thereby can carry out the centre gripping spacingly to the electronic components of different specifications, thereby avoid at the in-process of spot welding, electronic components produces and rocks, it is relatively poor to result in the spot welding effect, after the centre gripping is accomplished, adjust rolling disc 2, make the electronic components by the centre gripping move to the position that is close to first slide rail 32, welding position according to on the electronic components, adjust linear actuator 33, first slider 321, dwang 412 and second slider 421, make many spot welding pen 44 can be in electronic components's welding position top, afterwards, adjust mounting cylinder 41, mounting cylinder 41 moves along vertical direction, thereby make many spot welding pen 44 can move towards the direction that is close to electronic components, thereby simultaneously carry out spot welding to a plurality of welding position on electronic components, and improve welding efficiency, and through the buffer disc 431 that can come and go back and forth along vertical direction and go the removal, can avoid a plurality of spot welding pen 44 to damage electronic components.

As shown in fig. 1, 2, 6, 7, 8 and 9, each gripper mechanism 5 further comprises a rotary disc 52;

a second round hole 22 extending vertically downwards is arranged at the bottom of each first round hole 21, and the second round holes 22 and the first round holes 21 are coaxially arranged;

the radius of the second round hole 22 is larger than the closest distance between the axis of the first round hole 21 and the outer wall of the rotating disc 2;

the rotating disc 52 is rotatably arranged in the second round hole 22 in a horizontal state, and the rotating disc 52 and the second round hole 22 are coaxially arranged;

a contact disc 53 is arranged at the center of the top of the rotating disc 52, and four arc-shaped contact blocks 531 are arranged on the outer wall of the contact disc 53;

the inner wall of the first round hole 21 is provided with a first hinge part 211 along the circumferential direction, and the arc-shaped clamping rod 51 is hinged with the corresponding first hinge part 211;

one end of each arc-shaped clamping rod 51, which is far away from the arc-shaped clamping plate 511, is provided with a touch rod 512, the touch rod 512 is arranged in a horizontal state, and the touch rod 512 contacts the corresponding arc-shaped touch block 531;

a plurality of mounting plates 23 are arranged on the outer wall of the rotating disc 2 along the circumferential direction;

a plurality of clamping grooves 521 are formed in the top edge of the rotating disc 52;

one side of the bottom of each mounting plate 23 is provided with a second hinge portion 231, each second hinge portion 231 is hinged with a clamping claw 232, and one end of each clamping claw 232, which is far away from the second hinge portion 231, is arranged in the clamping groove 521 of the corresponding rotating disc 52 and is used for limiting the rotating disc 52.

The staff adjusts rolling disc 2, rolling disc 2 rotates, drive touch panel 53 along with the rotation of rolling disc 2 and rotate, along with touch panel 53's rotation, a plurality of touch bars 512 can slide along the outer wall that corresponds arc to touch block 531, thereby it can rotate along first articulated portion 211 to drive a plurality of arc supporting rods 51, thereby it is fixed to carry out the centre gripping to the electronic components of different specifications, after the centre gripping is accomplished, joint claw 232 can stretch into in the joint groove 521 that corresponds, avoid rotary disk 52 to rock at the in-process of spot welding, thereby further improvement arc clamping plate 511 is to electronic components's centre gripping stability.

As shown in fig. 3, 4 and 10, each mounting plate 23 is further provided with a pressing mechanism 6 for making the clamping claw 232 always contact with the clamping groove 521;

the pressing mechanism 6 comprises an inclined column 61, a pressing column 62 and a pressing spring 63;

the inclined column 61 is arranged at one end of the bottom of the mounting plate 23 away from the first hinge part 211 at a certain angle, one end of the inclined column 61 away from the mounting plate 23 is provided with a guide hole 611, the guide hole 611 faces to a direction close to the corresponding clamping claw 232, and the pressing column 62 is arranged in the guide hole 611 in a sliding manner;

the pressing spring 63 is arranged in the guide hole 611, and two ends of the pressing spring 63 respectively contact the pressing column 62 and the inner wall of the bottom of the guide hole 611;

the end of each clamping claw 232 away from the rotating disc 2 is provided with a third hinge 2321, and the end of the pressing column 62 away from the guide hole 611 is hinged to the third hinge 2321.

When the electronic component needs to be clamped, the worker adjusts the rotating disc 52 to rotate, the clamping claw 232 rotates along the second hinge portion 231 to intermittently contact the clamping groove 521, the pressing column 62 is pushed along with the movement of the clamping claw 232, the pressing column 62 slides along the guide hole 611 to press the pressing spring 63, at this time, the clamping claw 232 does not affect the rotating disc 52, after the clamping of the motor component is completed, the pressing column 62 pushes the clamping claw 232 to extend into the corresponding clamping groove 521 under the action of the pressing spring 63, the pressing column 62 is hinged to the third hinge portion 2321, the moving stability of the clamping claw 232 is guaranteed, and the position of the rotating disc 52 is limited under the matching of the pressing column 62 and the clamping claw 232.

Referring to fig. 1, 2, 6, 7, 9 and 11, a positioning mechanism 7 for placing an electronic component is further disposed in each first circular hole 21;

each positioning mechanism 7 comprises a connecting column 71 and a lifting column 72;

a plurality of positioning rods 711 are equidistantly arranged on the outer wall of the connecting column 71, and one end of each positioning rod 711, which is far away from the connecting column 71, is arranged on the inner wall of the first round hole 21;

a first through hole 712 is formed in the center of the connecting column 71, a threaded rod 532 extending vertically and upwards is formed in the center of the abutting disc 53, and the threaded rod 532 is arranged in the center of the first through hole 712; the inner wall of the first through hole 712 is provided with two first sliding grooves 713, and the two first sliding grooves 713 are arranged in a mirror image mode relative to the axis of the first through hole 712;

the outer wall of one end of the lifting column 72 is provided with a first sliding strip 721 matched with the first sliding groove 713, the first sliding strip 721 can be slidably arranged in the corresponding first sliding groove 713, and the lifting column 72 can be slidably arranged in the first through hole 712;

a first threaded hole 722 is formed in the center of the bottom of the lifting column 72, and the first threaded hole 722 is in threaded connection with the threaded rod 532;

a placing plate 723 for placing electronic components is arranged on the top of the lifting column 72.

By arranging the placing plate 723, an operator places an electronic component on the placing plate 723 to enable the electronic component to be clamped and fixed in a horizontal state, the operator adjusts the rotating disc 52, the four arc-shaped clamping plates 511 synchronously move towards a direction close to the electronic component, the threaded rod 532 is in threaded connection with the lifting column 72, so that the lifting column 72 can move towards a direction close to the rotating disc 52, the first sliding strip 721 is matched with the first sliding groove 713, the lifting column 72 can be guaranteed to keep moving in a vertical direction when the threaded rod 532 rotates, after the electronic component is clamped, the lifting column retracts into the first through hole 712, after spot welding is completed, the operator reversely rotates the rotating disc 52, the four arc-shaped clamping plates 511 move towards a direction away from the electronic component, the lifting column 72 moves towards a direction away from the rotating disc 52, and the placing plate 723 receives the spot-welded electronic component again, so that the spot-welded electronic component can be taken out by the operator conveniently.

As shown in fig. 1, 2, 4, 8 and 9, a connection ring 522 is further disposed at the top edge of each rotating disc 52, a fixed rod 233 is further disposed on each mounting plate 23, a tension spring 523 is disposed between the fixed rod 233 and the connection ring 522, and two ends of the tension spring 523 are respectively disposed on the connection ring 522 and the fixed rod 233;

an annular avoiding groove 24 for avoiding the tension spring 523 is formed in the inner wall of the top of the second round hole 22;

the workbench 1 is provided with a support rod 11, the support rod 11 is arranged in a vertical state, the top of the support rod 11 is provided with an intercepting rod 12, the intercepting rod 12 is arranged in a horizontal state, and the bottom height of the intercepting rod 12 is the same as the top height of the rotating disc 52.

The worker adjusts the rotating disc 52, the tension spring 523 is pulled along the annular avoiding groove 24 along with the rotation of the rotating disc 52, so that elastic force is generated, after the electronic component is clamped, the rotating disc 52 is limited under the cooperation of the clamping claw 232, the pressing column 62 and the pressing spring 63, the clamping stability is improved, the intercepting rod 12 lifts the clamping claw 232 out of the clamping groove 521 along with the rotation of the rotating disc 2, the rotating disc 52 automatically returns under the action of the elastic force of the tension spring 523, so that the plurality of arc-shaped clamping plates 511 can loosen the electronic component, the electronic component is received on the placing plate 723 under the action of the lifting column 72, the clamping claw 232 can continuously extend into the clamping groove 521 under the action of the pressing spring 63 and the pressing column 62, the worker only needs to rotate the rotating disc 52 towards one direction, and under the cooperation of the intercepting rod 12 and the tension spring 523, the electronic component can be automatically moved out of the arc-shaped clamping plates 511, the operation steps in the worker are reduced, and the spot welding efficiency is improved.

Referring to fig. 3 and 6, a first servo motor 13 is arranged at the bottom of the workbench 1, the first servo motor 13 is arranged in a vertical state, and an output shaft of the first servo motor 13 penetrates through the workbench 1 and is arranged at the center of the bottom of the rotary disc 2.

The staff only need place electronic components in a position, drives rolling disc 2 through first servo motor 13 and rotates, just can carry the electronic components that the centre gripping was accomplished, need not the staff and changes in spot welding pen 44 below, avoids spot welding pen 44 to exert an influence to staff's health safety, improves the security that the device used.

Referring to fig. 1, 3, 6 and 12, the position adjustment mechanism 3 further includes a second servo motor 34 and a lead screw 35;

the screw rod 35 is rotatably arranged in the first slide rail 32, and the length direction of the screw rod 35 is the same as that of the first slide rail 32;

the second servo motor 34 is arranged at one end of the first slide rail 32, and an output shaft of the first servo motor 13 passes through the first slide rail 32 and is connected with one end of the screw rod 35;

one end of the first slider 321 along the length direction of the first slide rail 32 is provided with a second threaded hole 3211 matched with the screw rod 35, and the second threaded hole 3211 is in threaded connection with the screw rod 35.

Drive lead screw 35 through second servo motor 34 and rotate, the second screw hole 3211 threaded connection of lead screw 35 and first slider 321 to drive first slider 321 and can reciprocate along first slide rail 32 and slide, through cooperating with linear actuator 33, thereby adjust spot welding mechanism 4 in the position of horizontal direction, improve the suitability of device.

Referring to fig. 1, 3, 5, 13, 14 and 15, the spot welding mechanism 4 further includes a mounting bracket 45, a cylinder 46, a rotating ring 47, a return spring 48 and a limit bolt 49;

the mounting bracket 45 is arranged in a vertical state, and the execution part of the linear driver 33 is arranged at the center of one side of the mounting bracket 45;

the cylinder 46 is arranged inside the mounting frame 45, the cylinder 46 is arranged in a vertical state, and an execution part of the cylinder 46 penetrates through the mounting frame 45 and is arranged at the center of the top of the mounting cylinder 41;

the outer wall of each rotating rod 412 is provided with two guide grooves 4121, and the two guide grooves 4121 are arranged in a mirror image mode relative to the axis of the rotating rod 412;

a plurality of rotating rings 47 are provided, the rotating rings 47 are sleeved on the corresponding rotating rods 412, the rotating rings 47 are arranged in a horizontal state, and two guide blocks 471 corresponding to the guide grooves 4121 are arranged on the inner wall of each rotating ring 47;

the return springs 48 are provided in plurality, the return springs 48 are sleeved on the corresponding rotating rods 412, and two ends of the return springs 48 contact the corresponding rotating rings 47 and the corresponding second sliding rails 42;

a rectangular protrusion 472 is arranged at the top of each rotating ring 47 along the circumferential direction, and a rectangular groove 413 corresponding to the rectangular protrusion 472 is arranged at the bottom of the mounting cylinder 41 along the circumferential direction;

a plurality of anti-slip strips 473 are arranged on the outer wall of each rotating ring 47 along the circumferential direction;

a strip-shaped notch 422 is formed in one side of each second sliding rail 42 along the length direction, and a third threaded hole 4211 is formed in one side, close to the strip-shaped notch 422, of each second sliding block 421;

the limiting bolts 49 are multiple, and the limiting bolts 49 penetrate through the corresponding strip-shaped notches 422 to be in threaded connection with the corresponding third threaded holes 4211.

The staff grasps the rotating ring 47 to pull downwards, the rotating ring 47 extrudes the corresponding return spring 48, then, the staff rotates the rotating ring 47, the rotating ring 47 drives the rotating rod 412 to rotate, according to the welding position of the electronic component, the position of the second sliding rail 42 is adjusted, then, the positions of the second sliding block 421, the linear driver 33 and the first sliding block 321 are sequentially adjusted, the spot welding pen 44 is made to be positioned right above the welding position of the electronic component, then, the staff loosens the rotating ring 47, under the action of the return spring 48, the rectangular protrusion 472 and the rectangular groove 413 are clamped, so that the rotating rod 412 is limited, the limit bolt 49 is rotated, the limit bolt 49 penetrates through the strip-shaped notch 422 to be in threaded connection with the third threaded hole 4211, the limit bolt 49 contacts the corresponding second sliding rail 42, so that the position of the second sliding block 421 is fixed, then, the staff starts the air cylinder 46, the air cylinder 46 pushes the mounting cylinder 41 to move towards the direction close to the electronic component, so that a plurality of spot welding positions are synchronously welded, and the welding efficiency is improved.

Referring to fig. 3, 5 and 15, each damping assembly 43 further includes a connecting rod 432, a connecting plate 433, a supporting column 434, a damping column 435, a damping spring 436 and a limit ring 437;

the connecting rod 432 is arranged in a vertical state, and the connecting rod 432 is arranged at the center of the bottom of the corresponding second slider 421;

the connecting disc 433 is arranged in a horizontal state, and one end of the connecting rod 432, which is far away from the second slider 421, is arranged at the center of the top of the connecting disc 433;

a plurality of supporting columns 434 are arranged, the supporting columns 434 are arranged at the bottom of the connecting disc 433 in a vertical state, and the supporting columns 434 are arranged at equal intervals along the circumferential direction of the connecting disc 433;

a third circular hole 4341 is arranged at the center of one end of each supporting column 434 away from the connecting disc 433, two second sliding grooves 4342 are arranged on the inner wall of each third circular hole 4341, and the two second sliding grooves 4342 are arranged in a mirror image manner relative to the axis of the third circular hole 4341;

a plurality of buffer columns 435 are provided, one end of each buffer column 435 is provided with two second sliding bars 4351 corresponding to the second sliding grooves 4342, the second sliding bars 4351 can be arranged in the corresponding second sliding grooves 4342 in a sliding manner, and the buffer columns 435 can be arranged in the corresponding third circular holes 4341 in a sliding manner;

an end of each of the damping columns 435 remote from the third circular hole 4341 is disposed at a top edge of the damping disk 431;

the buffer springs 436 are arranged in the corresponding third round holes 4341, and two ends of the buffer springs 436 contact the corresponding buffer columns 435 and the inner walls of the bottoms of the corresponding third round holes 4341;

the limiting rings 437 are provided in plurality, the limiting rings 437 are disposed at one ends of the corresponding support columns 434 away from the connecting disc 433, and the centers of the limiting rings 437 are provided with second through holes 4371 through which only the buffer columns 435 pass;

the damping post 435 is slidably disposed within the second through hole 4371.

Through being provided with buffer assembly 43, when spot welding pen 44 is under the promotion of cylinder 46, the orientation removes near electronic components's direction, when spot welding pen 44 contacts electronic components, buffer disc 431 rebound, buffer column 435 extrudees buffer spring 436, thereby provide certain buffer space for spot welding pen 44, thereby avoid spot welding pen 44 rigidity contact electronic components to lead to electronic components to produce the damage, and to the welding position of co-altitude, buffer column 435 can provide certain buffer space, thereby can make a plurality of spot welding pen 44 weld in step, the setting of second draw runner 4351 and second spout 4342 can guarantee the stability that buffer column 435 removed, through being provided with spacing ring 437, when second draw runner 4351 contacts spacing ring 437, spacing ring 437 can play the limiting role to buffer column 435, avoid buffer column 435 to be pushed out third round hole 4341 by buffer spring 436.

Referring to fig. 16, a method for using a spot welding device with a limiting structure for processing an electronic component includes the following steps:

s1, a worker places an electronic component at the center of a placing plate 723, then rotates a rotating disc 52, the rotating disc 52 drives a contact disc 53 to rotate, so that a plurality of arc-shaped clamping plates 511 can clamp the electronic component, a threaded rod 532 drives the placing plate 723 to move downwards, and a clamping claw 232 extends into a clamping groove 521 to fix the rotating disc 52;

s2, starting a first servo motor 13, wherein the first servo motor 13 drives a rotating disc 2 to rotate, so that the position of the clamped electronic component is moved, then sequentially adjusting a linear driver 33, a second servo motor 34, a rotating ring 47 and a limiting bolt 49 according to the welding position of the electronic component, so that a spot welding pen 44 is positioned right above the welding position of the electronic component, then loosening the rotating ring 47, clamping a rectangular bulge 472 and a rectangular groove 413 mutually, limiting the rotating ring 47, and limiting a second sliding block 421 through the limiting bolt 49;

s3, starting the air cylinder 46 and carrying out spot welding on a plurality of welding positions of the electronic component;

s4, after spot welding is finished, starting the first servo motor 13 to drive the rotating disc 2 to rotate, lifting the clamping claw 232 of the intercepting rod 12 out of the clamping groove 521, automatically aligning the rotating disc 52 under the action of elastic force of the tension spring 523, loosening the spot-welded electronic component by the arc-shaped clamping plate 511, and pushing the lifting rod to move upwards by the threaded rod 532 so as to place the spot-welded electronic component on the placing plate 723;

The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A spot welding device with a limiting structure for processing electronic components is characterized by comprising a workbench (1), a rotating disc (2), a position adjusting mechanism (3) and a spot welding mechanism (4);

the rotary disc (2) is arranged on the workbench (1) in a horizontal state and can rotate, a plurality of first round holes (21) are formed in the edge of the top of the rotary disc (2), and a clamping mechanism (5) for clamping a motor component is arranged in each first round hole (21);

each clamping mechanism (5) comprises four arc-shaped clamping rods (51) capable of synchronously moving towards the axis of the corresponding first round hole (21), the arc-shaped clamping rods (51) are arranged at equal intervals along the axis of the corresponding first round hole (21), and an arc-shaped clamping plate (511) is arranged at one end, close to the corresponding first round hole (21), of each arc-shaped clamping rod (51);

the position adjusting mechanism (3) is arranged on the workbench (1);

the position adjusting mechanism (3) comprises a support frame (31) and a first sliding rail (32);

the two support frames (31) are arranged at two sides of the top of the workbench (1) in a vertical state, the first sliding rail (32) is arranged in a horizontal state, two ends of the first sliding rail (32) are arranged at the tops of the corresponding support frames (31), and the opening end of the first sliding rail (32) faces the direction of the rotating disc (2);

a first sliding block (321) is arranged in the first sliding rail (32) in a sliding mode, a linear driver (33) is arranged on the first sliding block (321), an execution part of the linear driver (33) faces to the direction far away from the sliding rail, and the driving direction of the linear driver (33) is perpendicular to the length direction of the first sliding rail (32);

the spot welding mechanism (4) is arranged on an execution part of the linear driver (33);

the spot welding mechanism (4) comprises a mounting cylinder (41) capable of reciprocating along the vertical direction; the installation barrel (41) is arranged in a vertical state, a plurality of installation holes (411) are formed in the bottom of the installation barrel (41) along the circumferential direction, a rotating rod (412) is rotatably arranged in each installation hole (411), a second sliding rail (42) is arranged at one end, far away from the installation holes (411), of each rotating rod (412), the second sliding rail (42) is arranged in a horizontal state, and the opening end of the second sliding rail (42) faces towards the direction close to the workbench (1);

a second sliding block (421) is arranged in each second sliding rail (42) in a sliding mode, and a buffering assembly (43) is arranged at the center of the bottom of each second sliding block (421);

each buffer assembly (43) comprises a buffer disc (431) capable of moving back and forth along the vertical direction, the buffer discs (431) are arranged in a horizontal state, and a spot welding pen (44) extending downwards vertically is arranged at the center of each buffer disc (431).

2. The spot welding device with the limiting structure for processing the electronic component as claimed in claim 1, wherein each clamping mechanism (5) further comprises a rotating disc (52);

a second circular hole (22) extending vertically downwards is formed in the bottom of each first circular hole (21), and the second circular holes (22) and the first circular holes (21) are coaxially arranged;

the radius of the second round hole (22) is larger than the shortest distance between the axis of the first round hole (21) and the outer wall of the rotating disc (2);

the rotating disc (52) is arranged in the second round hole (22) in a horizontal state in a rotatable manner, and the rotating disc (52) and the second round hole (22) are coaxially arranged;

a contact disc (53) is arranged at the center of the top of the rotating disc (52), and four arc-shaped contact blocks (531) are arranged on the outer wall of the contact disc (53);

a first hinge part (211) is arranged on the inner wall of the first round hole (21) along the circumferential direction, and the arc-shaped clamping rod (51) is hinged with the corresponding first hinge part (211);

one end of each arc-shaped clamping rod (51) far away from the arc-shaped clamping plate (511) is provided with a touch rod (512), the touch rods (512) are arranged in a horizontal state, and the touch rods (512) contact the corresponding arc-shaped touch blocks (531);

a plurality of mounting plates (23) are arranged on the outer wall of the rotating disc (2) along the circumferential direction;

a plurality of clamping grooves (521) are formed in the top edge of the rotating disc (52);

one side of the bottom of each mounting plate (23) is provided with a second hinge part (231), each second hinge part (231) is hinged with a clamping claw (232), and one end, far away from the second hinge part (231), of each clamping claw (232) is arranged in a clamping groove (521) of the corresponding rotating disc (52) and used for limiting the rotating disc (52).

3. The spot welding device with the limiting structure for processing the electronic components as claimed in claim 2, wherein each mounting plate (23) is further provided with a pressing mechanism (6) for enabling the clamping claw (232) to contact with the clamping groove (521) all the time;

the pressing mechanism (6) comprises an oblique column (61), a pressing column (62) and a pressing spring (63);

the inclined column (61) is arranged at one end, far away from the first hinge portion (211), of the bottom of the mounting plate (23) at a certain angle, a guide hole (611) is formed in one end, far away from the mounting plate (23), of the inclined column (61), the guide hole (611) faces towards the direction close to the corresponding clamping claw (232), and the pressing column (62) can be arranged in the guide hole (611) in a sliding mode;

the pressing spring (63) is arranged in the guide hole (611), and two ends of the pressing spring (63) are respectively contacted with the pressing column (62) and the inner wall of the bottom of the guide hole (611);

one end, far away from the rotating disc (2), of each clamping claw (232) is provided with a third hinging part (2321), and one end, far away from the guide hole (611), of the pressing column (62) is hinged to the third hinging part (2321).

4. The spot welding device with the limiting structure for processing the electronic component as claimed in claim 3, wherein a positioning mechanism (7) for placing the electronic component is further arranged in each first round hole (21);

each positioning mechanism (7) comprises a connecting column (71) and a lifting column (72);

a plurality of positioning rods (711) are arranged on the outer wall of the connecting column (71) at equal intervals, and one end, far away from the connecting column (71), of each positioning rod (711) is arranged on the inner wall of the first round hole (21);

a first through hole (712) is formed in the center of the connecting column (71), a threaded rod (532) extending vertically and upwards is arranged in the center of the abutting disc (53), and the threaded rod (532) is arranged in the center of the first through hole (712); two first sliding grooves (713) are formed in the inner wall of the first through hole (712), and the two first sliding grooves (713) are arranged in a mirror image mode relative to the axis of the first through hole (712);

the outer wall of one end of the lifting column (72) is provided with a first sliding strip (721) matched with the first sliding groove (713), the first sliding strip (721) can be arranged in the corresponding first sliding groove (713) in a sliding mode, and the lifting column (72) can be arranged in the first through hole (712) in a sliding mode;

a first threaded hole (722) is formed in the center of the bottom of the lifting column (72), and the first threaded hole (722) is in threaded connection with the threaded rod (532);

a placing plate (723) for placing electronic components is arranged at the top of the lifting column (72).

5. The spot welding device with the limiting structure for processing the electronic components as claimed in claim 4, wherein a connecting ring (522) is further disposed at the top edge of each rotating disc (52), a fixing rod (233) is further disposed on each mounting plate (23), a tension spring (523) is disposed between the fixing rod (233) and the connecting ring (522), and two ends of the tension spring (523) are respectively disposed on the connecting ring (522) and the fixing rod (233);

an annular avoiding groove (24) for avoiding the tension spring (523) is formed in the inner wall of the top of the second round hole (22);

the workbench (1) is provided with a support rod (11), the support rod (11) is arranged in a vertical state, the top of the support rod (11) is provided with an intercepting rod (12), the intercepting rod (12) is arranged in a horizontal state, and the bottom height of the intercepting rod (12) is the same as the top height of the rotating disk (52).

6. The spot welding device with the limiting structure for processing the electronic component as claimed in claim 1, wherein a first servo motor (13) is arranged at the bottom of the workbench (1), the first servo motor (13) is arranged in a vertical state, and an output shaft of the first servo motor (13) penetrates through the workbench (1) and is arranged at the center of the bottom of the rotating disc (2).

7. The spot welding device with the limiting structure for processing the electronic component as claimed in claim 1, wherein the position adjusting mechanism (3) further comprises a second servo motor (34) and a lead screw (35);

the screw rod (35) is rotatably arranged in the first slide rail (32), and the length direction of the screw rod (35) is the same as that of the first slide rail (32);

the second servo motor (34) is arranged at one end of the first sliding rail (32), and an output shaft of the first servo motor (13) penetrates through the first sliding rail (32) to be connected with one end of the screw rod (35);

one end of the first sliding block (321) along the length direction of the first sliding rail (32) is provided with a second threaded hole (3211) matched with the screw rod (35), and the second threaded hole (3211) is in threaded connection with the screw rod (35).

8. The spot welding device with the limiting structure for processing the electronic components, which is recited in claim 1, is characterized in that the spot welding mechanism (4) further comprises a mounting rack (45), a cylinder (46), a rotating ring (47), a return spring (48) and a limiting bolt (49);

the mounting rack (45) is arranged in a vertical state, and the execution part of the linear driver (33) is arranged at the center of one side of the mounting rack (45);

the cylinder (46) is arranged inside the mounting frame (45), the cylinder (46) is arranged in a vertical state, and an execution part of the cylinder (46) penetrates through the mounting frame (45) and is arranged at the center of the top of the mounting cylinder (41);

the outer wall of each rotating rod (412) is provided with two guide grooves (4121), and the two guide grooves (4121) are arranged in a mirror image mode relative to the axis of the rotating rod (412);

a plurality of rotating rings (47) are arranged, the rotating rings (47) are sleeved on the corresponding rotating rods (412), the rotating rings (47) are arranged in a horizontal state, and two guide blocks (471) corresponding to the guide grooves (4121) are arranged on the inner wall of each rotating ring (47);

a plurality of return springs (48) are arranged, the return springs (48) are sleeved on the corresponding rotating rods (412), and two ends of each return spring (48) are in contact with the corresponding rotating ring (47) and the corresponding second sliding rail (42);

the top of each rotating ring (47) is provided with a rectangular protrusion (472) along the circumferential direction, and the bottom of the mounting cylinder (41) is provided with a rectangular groove (413) corresponding to the rectangular protrusion (472) along the circumferential direction;

the outer wall of each rotating ring (47) is provided with a plurality of anti-slip strips (473) along the circumferential direction;

a strip-shaped notch (422) is formed in one side of each second sliding rail (42) along the length direction, and a third threaded hole (4211) is formed in one side, close to the strip-shaped notch (422), of each second sliding block (421);

the limiting bolts (49) are multiple, and the limiting bolts (49) penetrate through the corresponding strip-shaped notches (422) to be in threaded connection with the corresponding third threaded holes (4211).

9. The spot welding device with the limiting structure for the electronic component processing according to claim 8, wherein each buffer assembly (43) further comprises a connecting rod (432), a connecting disc (433), a supporting column (434), a buffer column (435), a buffer spring (436) and a limiting ring (437);

the connecting rod (432) is arranged in a vertical state, and the connecting rod (432) is arranged at the center of the bottom of the corresponding second sliding block (421);

the connecting disc (433) is arranged in a horizontal state, and one end, far away from the second sliding block (421), of the connecting rod (432) is arranged at the center of the top of the connecting disc (433);

a plurality of supporting columns (434) are arranged, the supporting columns (434) are arranged at the bottom of the connecting disc (433) in a vertical state, and the supporting columns (434) are arranged at equal intervals along the circumferential direction of the connecting disc (433);

a third round hole (4341) is formed in the center of one end, away from the connecting disc (433), of each supporting column (434), two second sliding grooves (4342) are formed in the inner wall of each third round hole (4341), and the two second sliding grooves (4342) are arranged in a mirror image mode relative to the axis of the third round hole (4341);

the number of the buffer columns (435) is multiple, one end of each buffer column (435) is provided with two second sliding strips (4351) corresponding to the second sliding grooves (4342), the second sliding strips (4351) can be arranged in the corresponding second sliding grooves (4342) in a sliding manner, and the buffer columns (435) can be arranged in the corresponding third round holes (4341) in a sliding manner;

one end of each buffer column (435) far away from the third round hole (4341) is arranged at the top edge of the buffer disc (431);

a plurality of buffer springs (436) are arranged, the buffer springs (436) are arranged in the corresponding third round holes (4341), and two ends of each buffer spring (436) are in contact with the corresponding buffer column (435) and the inner wall of the bottom of the corresponding third round hole (4341);

the limiting rings (437) are multiple, the limiting rings (437) are arranged at one ends, away from the connecting disc (433), of the corresponding supporting columns (434), and second through holes (4371) only allowing the buffering columns (435) to penetrate through are formed in the centers of the limiting rings (437);

the damping column (435) is slidably disposed in the second through hole (4371).

10. A use method of a spot welding device with a limiting structure for processing electronic components is applied to the spot welding device with the limiting structure for processing the electronic components, which is characterized by comprising the following steps:

s1, a worker places an electronic component at the center of a placing plate (723), then a rotating disc (52) is rotated, the rotating disc (52) drives a contact disc (53) to rotate, so that a plurality of arc-shaped clamping plates (511) can clamp the electronic component, a threaded rod (532) drives the placing plate (723) to move downwards, and a clamping claw (232) extends into a clamping groove (521) to fix the rotating disc (52);

s2, starting a first servo motor (13), wherein the first servo motor (13) drives a rotating disc (2) to rotate, so that the position of the clamped electronic component is moved, then sequentially adjusting a linear driver (33), a second servo motor (34), a rotating ring (47) and a limiting bolt (49) according to the welding position of the electronic component, so that a spot welding pen (44) is positioned right above the welding position of the electronic component, then loosening the rotating ring (47), enabling a rectangular protrusion (472) and a rectangular groove (413) to be clamped mutually, limiting the rotating ring (47), and limiting a second sliding block (421) through the limiting bolt (49);

s3, starting an air cylinder (46) and carrying out spot welding on a plurality of welding positions of the electronic component;

s4, spot welding is completed, a first servo motor (13) is started to drive the rotating disc (2) to rotate, the clamping claw (232) of the intercepting rod (12) is lifted out of the clamping groove (521), the rotating disc (52) is automatically corrected under the action of elastic force of the tension spring (523), the electronic components which are subjected to spot welding are loosened by the arc-shaped clamping plate (511), and the lifting rod is pushed by the threaded rod (532) to move upwards, so that the electronic components which are subjected to spot welding are placed on the placing plate (723);

s5, the worker takes out the electronic component subjected to spot welding, puts in a new electronic component, repeats the steps of S1 and S3, and carries out continuous spot welding.