CN113020766A

CN113020766A - Spot welding device

Info

Publication number: CN113020766A
Application number: CN201911347304.4A
Authority: CN
Inventors: 龚豪晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-06-25

Abstract

The invention discloses a spot welding device which comprises a working platform, a universal moving group, a fixing frame and a spot welding machine. Wherein the universal moving group is provided with a moving seat, a pneumatic cylinder fixedly arranged at the front end of the moving seat, a spot welding seat body electrically connected with the pneumatic cylinder, and a spot welding end relatively connected with the lower part of the spot welding seat body. The moving seat is connected with at least one moving handle, so that the universal moving group generates universal movement to align a workpiece on the working platform, the moving handle is provided with a button electrically connected with the pneumatic cylinder, when the button is pressed and electrically connected, the pneumatic cylinder is informed to descend, the spot welding end is informed to face the workpiece spot welding end in a relatively electrically connected mode, after spot welding, the pneumatic cylinder is informed to ascend through the electrical connection, the spot welding end is simultaneously driven to ascend, and the workpieces on different positions can be accurately spot welded conveniently.

Description

Spot welding device

Technical Field

The invention relates to a spot welding machine, in particular to a spot welding device which is manually and universally moved to facilitate spot welding of workpieces.

Background

Referring to fig. 1 and 2, a conventional spot welding machine 1 is installed on a top end surface of a working platform 12 on a fixing frame 11, a spot welding end 13 is disposed at a front end of the spot welding machine 1, and a foot pedal 14 and a connecting strip 15 connecting the foot pedal 14 and the spot welding end 13 are disposed at a bottom of the fixing frame 11. The spot welding machine 1 uses the hand of the operator to move the workpiece 2 to be spot welded on the working platform 12, and the pedal 14 is used to drive the connecting strip 15 to move downwards and drive the spot welding end 13 to move downwards to spot weld the workpiece 2, and when the pedal 14 is released, the connecting strip 15 is driven to move upwards and drive the spot welding end 13 to move upwards.

However, in the existing spot welding machine 1, the foot pedal 14 is used to step or release, and the connecting strip 15 is used to drive the spot welding end 13 to descend for spot welding the workpiece 2, or the connecting strip 15 is used to drive the spot welding end 13 to ascend. Because the hand of the operator moves laterally or moves back and forth to place the workpiece 2 to be spot-welded on the working platform 12 and the action stroke of the connecting strip 15 is too large, the connecting strip 15 cannot be precisely controlled to be linked and drive the spot welding end 13 to descend or ascend, the spot welding end 13 still needs to be controlled to move up and down by the connecting strip 15, the workpiece 2 is manually controlled to move laterally or move back and forth and the spot welding position is visually observed, the aim of precise spot welding of an electronic product is not easy to achieve, the finished spot welding workpiece 2 also cannot meet the quality standard, the production speed is slow, the integral spot welding is complex and inconvenient, the spot welding cost is greatly increased, the working efficiency is lacked, and the problem of the existing spot welding machine 1 is solved.

Disclosure of Invention

The invention mainly aims to solve the problems that the existing spot welding machine controls the workpiece to move transversely or move back and forth and visually inspect the spot welding position by manpower, controls the spot welding end to move up and down by the connecting strip, is difficult to achieve accurate spot welding of electronic products, and the finished spot welding workpiece is difficult to meet the quality standard and has slow production speed, so that the integral spot welding is complicated and inconvenient to implement, the spot welding cost is greatly increased, and the spot welding efficiency is poor.

In order to achieve the above object, the present invention provides a spot welding device, which comprises a working platform, a universal moving set, a fixing frame, and a spot welding machine. The work platform is used for placing a workpiece. The universal moving group is arranged above the working platform and comprises a moving seat arranged on the universal moving group, a pneumatic cylinder fixedly arranged at the front end of the moving seat, a spot welding seat body electrically connected with the pneumatic cylinder and a spot welding end oppositely connected with the lower part of the spot welding seat body; the moving seat is connected with at least one moving handle, so that the universal moving group generates universal movement to aim at a workpiece on the working platform, the moving handle is provided with a button electrically connected with the pneumatic cylinder, the button is pressed and electrically connected to inform the pneumatic cylinder to descend, and simultaneously the spot welding end is driven to face the workpiece for spot welding, and after the spot welding is finished, the pneumatic cylinder is informed to ascend through the electrical connection and simultaneously the spot welding end is driven to ascend. The fixing frame is arranged behind the working platform and above the universal moving group. The spot welding machine is arranged above the fixing frame.

Furthermore, the universal moving group comprises two corresponding longitudinal rails and a transverse rail which is spanned on the longitudinal rails and can move back and forth, the longitudinal rails respectively comprise two frame bodies which are respectively and fixedly arranged at two sides above the working platform, two first rails which are respectively connected with the upper parts of the frame bodies, two first fixing pieces which are respectively and fixedly arranged above the frame bodies and respectively face the front end and the rear end of the first rails, and two first sliding blocks which are respectively sleeved above the first rails, and the first sliding blocks respectively move back and forth along the first rails and respectively abut against the inner sides of the first fixing pieces.

Furthermore, the transverse moving track comprises a convex frame connected above the first sliding blocks, a second track connected above the convex frame, and second fixing pieces respectively fixedly arranged above the convex frame and respectively facing the left end and the right end of the second track; the movable seat comprises a seat body which is spanned on the transverse moving track to move left and right, a second slide block which is connected inside the seat body and moves left and right along the second track to respectively lean against the inner sides of the second fixing pieces, and connecting rods which are respectively connected with the left side and the right side of a fixing body at the front end of the seat body, wherein one end of one connecting rod is arranged above the movable handle.

Furthermore, the number of the movable handles is two, and the two movable handles are respectively arranged above one ends of the connecting rods at the left side and the right side of the fixed body.

A spot welding device comprises a working platform, a universal moving group, a fixing frame and a spot welding machine. The work platform is used for placing a workpiece. The universal moving group is arranged above the working platform and comprises a moving seat arranged on the universal moving group, a pneumatic cylinder fixedly arranged at the front end of the moving seat, a spot welding seat body electrically connected with the pneumatic cylinder and a spot welding end oppositely connected with the lower part of the spot welding seat body; the movable seat is connected with at least one movable handle, so that the universal movable group generates universal movement to aim at a workpiece on the working platform, and is arranged at the bottom end of the working platform and electrically connected with a pedal of the pneumatic cylinder, so that the pedal is trampled and electrically connected to inform the pneumatic cylinder to descend, and simultaneously the spot welding end is driven to face the workpiece for spot welding, and after the spot welding is completed, the pneumatic cylinder is informed to ascend through the electrical connection and simultaneously the spot welding end is driven to ascend. The fixing frame is arranged behind the working platform and above the universal moving group.

The spot welding machine is arranged above the fixing frame.

From the above description, the present invention has the following features:

the invention makes the longitudinal rails and the transverse rails of the universal moving group move to the workpiece aligned on the working platform in a universal way through the moving handle, and presses the button to inform the pneumatic cylinder to descend through electrical connection and inform the spot welding end to spot weld towards the workpiece through relative electrical connection, and after spot welding is finished, the pneumatic cylinder is informed to ascend through electrical connection and simultaneously drive the spot welding end to ascend, thereby facilitating accurate spot welding of workpieces at different positions, and avoiding the problems of inaccurate spot welding, such as manual control of transverse movement or front-back displacement of the workpiece and visual inspection of spot welding positions of the existing spot welding machine, and control of up-and-down movement of the spot welding end through the connecting strip.

Drawings

Fig. 1 is a schematic perspective view of a conventional spot welding machine and a workpiece with a hand moving laterally or back and forth.

Fig. 2 is a side view of the spot welding operation of the spot welder of fig. 1.

Fig. 3 is a perspective view of a spot welding apparatus according to a first embodiment of the present invention.

FIG. 4-1 is a schematic perspective view of the spot welding device and the gimbal moving group of FIG. 3.

Fig. 4-2 is a partially enlarged view of the hand-held grip of the spot welding device of fig. 4-1 to move the gimbal table laterally or back and forth.

Fig. 5 is a schematic diagram of the up-and-down motion of the spot welding end of the spot welding device of fig. 3 and the side view motion of the workpiece to be spot welded.

Fig. 6 is a partially enlarged schematic view of a spot welding end-down spot welding workpiece of the spot welding apparatus of fig. 4-1.

Fig. 7 is a perspective view illustrating the operation of a foot pedal according to a second embodiment of the spot welding device of the present invention.

Wherein, the reference numbers:

spot welding machine 1

Fixing frame 11

Work platform 12

Spot welding end 13

Foot pedal 14

Connecting strip 15

Workpiece 2

Spot welding device 3

Working platform 4

Universal moving group 5

Longitudinal rail 51

Rack body 511

First track 512

First fixing member 513

First slider 514

The traverse rail 52

Convex frame 521

Second track 522

Second fixing member 523

Movable seat 53

Base 531

Second slider 532

Fixing body 533

Connecting rod 534

Mobile handle 535

Push button 536

Pneumatic cylinder 54

Spot welding base 55

Spot welded end 56

Foot pedal 57

Fixing frame 6

Spot welding machine 7

Workpiece 8

Electrode sheet 81

Hand 9

Detailed Description

To gain an improved understanding of the nature, objects, and advantages of the invention, reference should be made to the following description, taken in conjunction with the accompanying drawings, in which:

referring to fig. 3 and 4-1, and the first embodiment shown in fig. 4-2, the present invention provides a spot welding apparatus, wherein the spot welding apparatus 3 includes a working platform 4, a universal moving assembly 5, a fixing frame 6, and a spot welding machine 7. Wherein the content of the first and second substances,

the work platform 4 is used for placing the workpiece 8.

The universal moving set 5 is disposed above the working platform 4, and the universal moving set 5 includes a moving base 53 disposed on the universal moving set 5, a pneumatic cylinder 54 fixedly disposed at the front end of the moving base 53, a spot welding base 55 electrically connected to the pneumatic cylinder 54, and a spot welding end 56 relatively connected to the lower portion of the spot welding base 55. The universal moving set 5 includes two corresponding longitudinal rails 51 and a traverse rail 52 disposed across the longitudinal rails 51 and moving back and forth. The longitudinal rails 51 respectively include two frame bodies 511 respectively fixed on two sides above the working platform 4, two first rails 512 respectively connected to the upper sides of the frame bodies 511, two first fixing members 513 respectively fixed on the upper sides of the frame bodies 511 and respectively facing the front and rear ends of the first rails 512, and two first sliding blocks 514 respectively sleeved on the upper sides of the first rails 512 and respectively moving forward and backward along the first rails 512, wherein the first sliding blocks 514 respectively move forward and backward along the first rails 512 and respectively abut against the inner sides of the first fixing members 513. The traverse rail 52 includes a protruding frame 521 connected to the upper portions of the first sliding blocks 514, a second rail 522 connected to the upper portions of the protruding frame 521, and second fixing members 523 respectively fixed to the upper portions of the protruding frame 521 and facing the left and right ends of the second rail 522. The movable base 53 is connected to at least one movable handle 535, and the movable handle 535 has a button 536 electrically connected to the pneumatic cylinder 54. The moving base 53 includes a base 531 straddling the traverse rail 52 and moving left and right, a second slider 532 connected to the inside of the base 531 and moving left and right along the second rail 522 to abut against the inner sides of the second fixing members 523, and a connecting rod 534 respectively connected to left and right sides of a fixing member 533 at the front end of the base 531. One end of the connecting rod 534 is connected to the moving handle 535, and the moving base 53 moves along with the left and right movement of the second slider 532 on the traverse rail 52. The present invention utilizes the moving handle 535 to make the longitudinal tracks 51 and the traverse tracks 52 move universally to align with the workpiece 8 on the working platform 4, and utilizes the button 536 disposed above the moving handle 535 and electrically connected with the pneumatic cylinder 54, when the button 536 is pressed, the pneumatic cylinder 54 is informed to descend by electrical connection and the spot welding end 56 is informed to spot weld towards the electrode plate 81 disposed above the workpiece 8 by relative electrical connection, when the spot welding end 56 is spot welded, the pneumatic cylinder 54 is informed to ascend by electrical connection and the spot welding end 56 is driven to ascend simultaneously. The pneumatic cylinder 54 is fixed at the front end of the fixed body 533 of the movable base 53, so that the back of the pneumatic cylinder 54 is connected to the fixed body 533, and a pneumatic rod (not shown) is disposed inside the pneumatic cylinder 54. The spot welding base 55 is electrically connected to the pneumatic rod of the pneumatic cylinder 54 and the spot welding machine 7. The spot welding end 56 is connected to the lower portion of the spot welding seat 55, when the electrical connection informs the ascending motion of the gas pressure rod and drives the spot welding seat 55 to ascend, the spot welding end 56 is driven to ascend, and conversely, when the electrical connection informs the descending motion of the gas pressure rod and drives the spot welding seat 55 to descend, the spot welding end 56 is driven to descend.

In the embodiment of the present invention, the two moving handles 535 are respectively disposed above the ends of the connecting rods 534 on the left and right sides of the fixed body 533, so that the operator can use the moving handle 535 held by the right hand at the end of the connecting rod 534 on the right side or the moving handle 535 held by the left hand at the end of the connecting rod 534 on the left side.

The fixing frame 6 is arranged behind the working platform 4 and above the universal moving group 5.

The spot welder 7 is arranged above the holder 6.

Referring to fig. 4-1 to 6, when the spot welding device 3 of the present invention is used to spot weld the workpiece 8 placed on the working platform 4, as shown in the embodiment of fig. 4-2, the operator's hand 9 (such as left hand) holds the left moving handle 535 to move the universal moving set 5, so that the longitudinal rails 51 and the traverse rail 52 are universally moved to be aligned with the upper side of the workpiece 8 to be spot welded, when the operator's hand 9 (such as left hand) presses the button 536 on the moving handle 535, the hand 9 (such as left hand) can be released first without pressing the button 536 all the time, when the button 536 is pressed, the descending motion of the pneumatic rod of the pneumatic cylinder 54 is informed by electrical connection and the spot welding seat 55 is driven to descend, and the spot welding end 56 is driven to spot weld the electrode plate 81 disposed on the workpiece 8, after the spot welding of the spot welding end 56 is completed, the electrical connection informs the ascending motion of the pneumatic rod and drives the spot welding seat 55 to ascend, and at the same time drives the spot welding end 56 to ascend. If the next workpiece 8 to be spot-welded is needed, the operator's hand 9 (such as the right hand or the left hand) holds the moving handle 535 to move the universal moving set 5, so as to move the universal moving set 5 to the top of the next workpiece 8 to be spot-welded, the next workpiece to be spot-welded is moved as the spot-welding operation, and the button 536 is pressed to move, and the electrical connection informs the pneumatic rod to descend and drive the spot-welding seat 55 to descend, and simultaneously drives the spot-welding end 56 to move toward the next spot-welding of the workpiece 8, and after the spot-welding end 56 is spot-welded, the electrical connection informs the pneumatic rod to ascend and drives the spot-welding seat 55 to ascend, and simultaneously drives the spot-welding end 56 to ascend, so as to facilitate the spot-welding of the workpieces 8 at different positions.

Referring to the second embodiment shown in fig. 7, which is substantially the same as the structure shown in fig. 3 of the present invention, the only difference is that the bottom end of the working platform 4 has a foot pedal 57 electrically connected to the air pressure rod, when the hand 9 (such as right hand or left hand) of the operator holds the moving handle 535 and moves the universal moving set 5, the longitudinal rails 51 and the traverse rails 52 move universally to the position above the workpiece 8 to be spot welded, and then the foot of the operator steps on the foot pedal 57 to open, the foot can be released first from the foot pedal 57 without pressing the foot pedal 57 all the time, so as to electrically connect and inform the descending motion of the air pressure rod and drive the spot welding seat 55 to descend, and drive the spot welding end 56 to descend and spot weld on the workpiece 8, after the spot welding of the spot welding end 56 is completed, electrically connect and inform the ascending motion of the air pressure rod and drive the spot welding seat 55 to ascend, meanwhile, the spot welding end 56 is driven to rise, so that the workpieces 8 at different positions can be conveniently spot-welded.

In summary, the present invention has the following features:

the invention makes the longitudinal tracks 51 and the transverse tracks 52 of the universal moving group 5 move to the workpiece 8 aligned on the working platform 4 in a universal way by the moving handle 535, and presses the button 536 to inform the pneumatic cylinder 54 to descend and drive the spot welding seat 55 to descend by electrical connection, and simultaneously drives the spot welding end 56 to descend towards the workpiece 8 for spot welding, after spot welding is completed, the pneumatic cylinder 54 is informed to ascend by electrical connection and drive the spot welding seat 55 to ascend, and simultaneously drives the spot welding end 56 to ascend, thereby facilitating accurate spot welding of workpieces 8 at different positions, and avoiding the inaccurate spot welding problem that the existing spot welding machine 1 controls the transverse movement or the front-back displacement of the workpiece 2 and the visual inspection position by manual work and controls the spot welding end 13 to move up and down by the connecting strip 15.

However, the foregoing is only a preferred embodiment of the present invention, which is for the purpose of enabling those skilled in the art to understand the present invention and to implement the invention, and is not intended to limit the scope of the invention; therefore, it is intended that all equivalent changes or modifications in the shape, structure and characteristics described in the claims of the present invention are included in the scope of the claims of the present invention.

Claims

1. A spot welding device is characterized by comprising a working platform, a universal moving group, a fixing frame and a spot welding machine; wherein

The working platform is used for placing a workpiece;

the universal moving group is arranged above the working platform and comprises a moving seat arranged on the universal moving group, a pneumatic cylinder fixedly arranged at the front end of the moving seat, a spot welding seat body electrically connected with the pneumatic cylinder and a spot welding end oppositely connected with the lower part of the spot welding seat body; the moving seat is connected with at least one moving handle, so that the universal moving group generates universal movement to aim at a workpiece on the working platform, the moving handle is provided with a button electrically connected with the pneumatic cylinder, the button is pressed and electrically connected to inform the pneumatic cylinder to descend, and simultaneously, the spot welding end is driven to face the workpiece for spot welding, and after the spot welding is finished, the pneumatic cylinder is informed to ascend through the electrical connection and simultaneously, the spot welding end is driven to ascend;

the fixing frame is arranged behind the working platform and above the universal moving group;

the spot welding machine is arranged above the fixing frame.

2. The spot welding apparatus according to claim 1, wherein the universal moving group comprises two corresponding longitudinal rails and a traverse rail disposed across the longitudinal rails for forward and backward displacement, the longitudinal rails respectively comprise two frame bodies respectively fixed on both sides above the working platform, two first rails respectively connected to the frame bodies, two first fixing members respectively fixed above the frame bodies and respectively facing the front and rear ends of the first rails, and two first sliding blocks respectively sleeved on the first rails, the first sliding blocks respectively displace forward and backward along the first rails and respectively abut against the inner sides of the first fixing members.

3. The spot welding apparatus according to claim 2, wherein the traverse rail comprises a ledge connected above the first sliders, a second rail connected above the ledge, and second fixing members respectively fixed above the ledge and respectively toward left and right ends of the second rail; the movable seat comprises a seat body which is spanned on the transverse moving track to move left and right, a second slide block which is connected inside the seat body and moves left and right along the second track to respectively lean against the inner sides of the second fixing pieces, and connecting rods which are respectively connected with the left side and the right side of a fixing body at the front end of the seat body, wherein one end of one connecting rod is arranged above the movable handle.

4. The spot welding apparatus according to claim 3, wherein the moving handles are two, and are respectively provided above one ends of the connecting rods on the left and right sides of the fixed body.

5. A spot welding device is characterized by comprising a working platform, a universal moving group, a fixing frame and a spot welding machine; wherein

The working platform is used for placing a workpiece;

the universal moving group is arranged above the working platform and comprises a moving seat arranged on the universal moving group, a pneumatic cylinder fixedly arranged at the front end of the moving seat, a spot welding seat body electrically connected with the pneumatic cylinder and a spot welding end oppositely connected with the lower part of the spot welding seat body; the movable seat is connected with at least one movable handle, so that the universal movable group generates universal movement to aim at a workpiece on the working platform, and is arranged at the bottom end of the working platform and electrically connected with a pedal of the pneumatic cylinder, so that the pedal is trampled and electrically connected to inform the pneumatic cylinder to descend, and simultaneously drive the spot welding end to face the workpiece for spot welding;

the spot welding machine is arranged above the fixing frame.

6. The spot welding apparatus according to claim 5, wherein the universal moving group comprises two corresponding longitudinal rails and a traverse rail disposed across the longitudinal rails for forward and backward displacement, the longitudinal rails respectively comprise two frame bodies respectively fixed on both sides above the working platform, two first rails respectively connected to the frame bodies, two first fixing members respectively fixed above the frame bodies and respectively facing the front and rear ends of the first rails, and two first sliding blocks respectively sleeved on the first rails, the first sliding blocks respectively displace forward and backward along the first rails and respectively abut against the inner sides of the first fixing members.

7. The spot welding apparatus according to claim 6, wherein the traverse rail comprises a ledge connected above the first sliders, a second rail connected above the ledge, and second fixing members respectively fixed above the ledge and respectively toward left and right ends of the second rail; the movable seat comprises a seat body which is spanned on the transverse moving track to move left and right, a second slide block which is connected inside the seat body and moves left and right along the second track to respectively lean against the inner sides of the second fixing pieces, and connecting rods which are respectively connected with the left side and the right side of a fixing body at the front end of the seat body, wherein one end of one connecting rod is arranged above the movable handle.

8. The spot welding apparatus according to claim 7, wherein the moving handles are two, and are respectively provided above one ends of the connecting rods on the left and right sides of the fixed body.