A multi-point stud welding integrated machine

Abstract

The application is suitable for the technical field of welding equipment, and provides a multi-point stud welding integrated machine, which comprises a welding mechanical arm, a welding table, a connecting sleeve, a welding frame, a welding gun and an assembling mechanism, further comprises an exchanging mechanism, a regulating mechanism and a limiting mechanism, the exchanging mechanism comprises an exchanging frame and a sliding assembly, the exchanging frame is composed of a left Z-shaped frame, a right Z-shaped frame and a U-shaped frame; the exchanging mechanism can drive the welding guns on each of them to stagger and accurately move down to the welding origin position in cooperation with the regulating mechanism and the limiting mechanism, forming a staggered state of single-welding-gun working and multiple-welding-gun standby, which can not only realize the rapid welding of different studs, meet the continuous welding demand of multi-point and multi-specification studs of workpieces, significantly improve the welding efficiency of the integrated machine, but also realize the nearby gun changing of the mechanical arm, so that the gun changing work can be completed near the workpiece, greatly shorten the gun changing time of the mechanical arm and reduce the unnecessary action of the mechanical arm backstroke gun changing.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of welding equipment, and particularly relates to a multi-point stud welding integrated machine. BACKGROUND

[0002] As a kind of efficient and reliable metal connection process, multi-point stud welding is widely used in the fields of automobile manufacturing, aerospace, rail transportation and engineering machinery, and its core principle is to melt the contact surface of the stud and the workpiece by arc or resistance heating, and to form a metallurgical bond under the action of pressure to realize the rapid welding of multiple studs at the preset position of the workpiece.

[0003] The existing multi-point stud welding integrated machine is usually composed of a welding mechanical arm, a welding gun, a gun changing mechanism and a welding platform; wherein the welding mechanical arm is responsible for moving the welding gun in three-dimensional space to reach different welding points of the workpiece; the welding gun is used as an executive component to select the appropriate type (such as arc or energy storage type) according to the diameter and material of the stud; and the gun changing mechanism is used to change the corresponding welding gun when welding different specifications of studs to meet the diversified welding requirements.

[0004] However, there are still technical defects in its actual application: first, the existing integrated machine needs to rely on the mechanical arm to return to the fixed gun changing station to complete the gun changing process, and in this process, the mechanical arm needs to perform a series of actions such as returning, changing guns and moving to the welding position, which not only increases the gun changing time, but also has a lot of unnecessary action redundancy, which seriously restricts the improvement of welding efficiency; second, the movement and positioning of the welding gun depend on the overall adjustment of the mechanical arm, and when the welding gun needs to be changed, the new welding gun needs to be moved to the original welding position, which takes a long time to adjust, and the accumulated error of the mechanical arm easily affects the welding precision, making it difficult to balance the positioning efficiency and precision.

[0005] Therefore, in view of the above status, it is urgent to develop a multi-point stud welding integrated machine to overcome the deficiencies in current actual application. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the embodiments of the present application is to provide a multi-point stud welding integrated machine to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0008] A multi-point stud welding integrated machine, comprising a welding mechanical arm, the welding mechanical arm is installed on one side of a welding table, a connecting sleeve is installed at the tail end of the welding mechanical arm, the connecting sleeve is concentric with and fixedly connected to a welding frame, a plurality of welding guns with different welding requirements are distributed equidistantly on the bottom of the welding frame, an assembly mechanism is distributed equidistantly on the upper surface of the welding frame, and the multi-point stud welding integrated machine further comprises:

[0009] The adjusting mechanism is fixed equidistantly in the circumference on the bottom of the welding frame, and comprises an adjusting frame and a sliding assembly, the adjusting frame is composed of a left Z-shaped frame, a right Z-shaped frame and a U-shaped frame, the left Z-shaped frame is fixed on the bottom of the welding frame, the right Z-shaped frame is fixed on one side of the left Z-shaped frame, and Z-shaped sliding grooves are formed on the end faces of the right Z-shaped frame and the left Z-shaped frame which are close to each other, the bottom of the right Z-shaped frame is fixedly connected with the bottom of the left Z-shaped frame through the U-shaped frame, the sliding assembly is located between the right Z-shaped frame and the left Z-shaped frame and is in sliding fit with the Z-shaped sliding grooves, and a fixing frame is installed on the bottom of the sliding assembly, and a welding gun is installed on the fixing frame;

[0010] The limiting mechanism is installed on the bottom of the welding frame and located on the inner side of the plurality of adjusting mechanisms, and is in vertical sliding fit with one end of the sliding assembly;

[0011] The regulating mechanism is installed on the welding frame at one end, and located on the outer side of the plurality of adjusting mechanisms and the welding frame at the other end, the inner wall of the other end of the regulating mechanism is in horizontal sliding fit with the assembling mechanism, and the bottom of the regulating mechanism is in sliding contact with the plurality of sliding assemblies.

[0012] As a further technical solution of the present application, the vertical distance between the bottom of the adjusting frame and the bottom of the limiting mechanism is less than the vertical distance between the top of the adjusting frame and the top of the limiting mechanism.

[0013] As a further technical solution of the present application, the width of the gap between the right Z-shaped frame and the left Z-shaped frame is consistent with the width of the inner walls on both sides of the U-shaped frame, and the width of the gap between the right Z-shaped frame and the left Z-shaped frame is greater than the outer shape width of the welding gun.

[0014] As a further technical solution of the present application, the sliding assembly comprises a sliding seat, a pulley and a ball, the sliding seat is located between the right Z-shaped frame and the left Z-shaped frame, pulleys are rotatably installed on both sides of the sliding seat, the two pulleys are in sliding fit with the Z-shaped sliding grooves on the right Z-shaped frame and the left Z-shaped frame respectively, one end of the sliding seat is in vertical sliding fit with the limiting mechanism, and the upper surface of the other end of the sliding seat is distributed with balls which are in sliding fit with the regulating mechanism.

[0015] As a further technical scheme of the present application, the regulating mechanism comprises a rotating sleeve, a regulating protrusion, a groove, an internal gear, a driving gear and a regulating motor, the rotating sleeve is located outside the welding frame and the plurality of regulating mechanisms, the inner wall of one end of the rotating sleeve is provided with the groove matched with the assembly mechanism in horizontal sliding, the inner wall of one end of the rotating sleeve is further fixed with the internal gear, the internal gear is engaged with the driving gear fixed on the output end of the regulating motor, the regulating motor is fixed on the welding frame, the bottom of the rotating sleeve is provided with the regulating protrusion, the regulating protrusion is fixed in a single distribution state on the bottom of the rotating sleeve, and the regulating protrusion and the bottom of the rotating sleeve are cross-slidably matched with the plurality of rolling balls on the sliding seat.

[0016] As a further technical scheme of the present application, the regulating mechanism comprises a rotating sleeve, a regulating protrusion, a groove, an internal gear, a driving gear and a regulating motor, the rotating sleeve is located outside the welding frame and the plurality of regulating mechanisms, the inner wall of one end of the rotating sleeve is provided with the groove matched with the assembly mechanism in horizontal sliding, the inner wall of one end of the rotating sleeve is further fixed with the internal gear, the internal gear is engaged with the driving gear fixed on the output end of the regulating motor, the regulating motor is fixed on the welding frame, the bottom of the rotating sleeve is provided with the regulating protrusion, the regulating protrusion is fixed in a single distribution state on the bottom of the rotating sleeve, and the regulating protrusion and the bottom of the rotating sleeve are cross-slidably matched with the plurality of rolling balls on the sliding seat.

[0017] As a further technical scheme of the present application, the connecting assembly comprises a main sliding cylinder, a vice sliding cylinder and a connecting sliding column, the main sliding cylinder is fixed horizontally on one side of the limiting sliding block, the vice sliding cylinder is slidably installed horizontally at one end of the main sliding cylinder, and the connecting sliding column is fixed horizontally at one end of the sliding seat and is slidably connected horizontally with the inner wall of the vice sliding cylinder.

[0018] As a further technical scheme of the present application, the assembly mechanism comprises an assembly seat, an assembly rod, a connecting frame, a sliding ball, a distance adjusting screw rod and a sleeve ring, the assembly seat is installed circumferentially and equidistantly on the top of the welding frame, the assembly seat is symmetrically provided with the assembly rod in horizontal, both of the assembly rods are slidably arranged on the assembly seat, both of the assembly rods are fixed with the sliding ball slidably matched with the groove at one end, and both of the assembly rods are fixedly connected with the connecting frame at the other end, the distance adjusting screw rod is arranged horizontally between the two assembly rods and is threadedly connected with the assembly seat, and the sleeve ring is fixed at the tail end of the distance adjusting screw rod and is movably connected with the middle part of the connecting frame.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] The control mechanism, through rotation, drives multiple sliding components to move vertically in an alternating manner. One sliding component is positioned at the bottom of its right and left Z-frames, while the others are positioned at the top of their respective right and left Z-frames. These sliding components, in conjunction with the limiting mechanism and welding frame, drive their respective welding torches to move alternately downwards to the center point of the welding frame's bottom (the welding origin point of the integrated welding machine). This creates an alternating state of single welding torch operation and multiple welding torches on standby. This not only allows for the rapid downward movement of welding torches with different welding requirements to the welding origin point, enabling rapid welding of different studs and meeting the continuous welding needs of multi-point and multi-specification studs on the workpiece, significantly improving the welding efficiency of the integrated machine, but also enables the robotic arm to change torches nearby, allowing it to complete the change near the workpiece. This greatly shortens the robotic arm's torch-changing time, reduces unnecessary return strokes for torch changing, and avoids the redundancy of traditional equipment requiring a return to a fixed torch-changing station, further enhancing the welding efficiency of the integrated machine.

[0021] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a multi-point stud welding integrated machine provided in an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Enlarged view of the connecting sleeve and its lower structure.

[0024] Figure 3 for Figure 2 A schematic diagram of the structure of the connecting sleeve, the adjustment mechanism, the switching mechanism, the limiting mechanism, and the welding torch.

[0025] Figure 4 for Figure 2 A schematic diagram of the switching mechanism, the limiting mechanism, and the welding torch.

[0026] Figure 5 for Figure 3 A side view of the structure of the central regulatory agency.

[0027] Figure 6 for Figure 4 A schematic diagram of the structure of the welding frame, the switching mechanism, the limiting mechanism, and the welding torch after they are partially concealed.

[0028] Figure 7 for Figure 6 The structural bottom view.

[0029] Figure 8 for Figure 6 A schematic diagram of the switching mechanism and the limit mechanism.

[0030] Figure 9 For Figure 8 Structure diagram of the adjusting frame.

[0031] Figure 10 For Figure 8 Structure diagram of the sliding assembly, spring and connecting assembly.

[0032] Figure 11 For Figure 10 Structure diagram of the connecting assembly.

[0033] Figure 12 For Figure 4 Structure diagram of the assembling mechanism.

[0034] Reference signs: 100-welding mechanical arm, 200-connecting sleeve, 300-adjusting mechanism, 310-rotating sleeve, 320-adjusting protrusion, 330-groove, 340-internal gear, 350-driving gear, 360-adjusting motor, 400-adjusting mechanism, 410-adjusting frame, 411-left Z-shaped frame, 412-right Z-shaped frame, 413-U-shaped frame, 414-Z-shaped sliding groove, 420-sliding assembly, 421-sliding seat, 422-pulley, 423-rolling ball, 500-limiting mechanism, 510-limiting column, 511-linear sliding groove, 520-limiting sliding block, 530-connecting assembly, 531-main sliding cylinder, 532-secondary sliding cylinder, 533-connecting sliding column, 540-return spring, 600-welding gun, 610-fixing frame, 700-welding frame, 800-assembling mechanism, 810-assembling seat, 820-assembling rod, 830-connecting frame, 840-sliding ball, 850-distance adjusting screw, 860-sleeve ring. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0036] The specific implementation of the present application will be described in detail below with reference to specific embodiments.

[0037] As Figures 1 to 12As shown, a multi-point stud welding integrated machine provided by one embodiment of the application comprises a welding mechanical arm 100 installed on one side or the middle of a welding table, which ensures that the welding area of the workpiece on the welding table is within the adjustment range of the welding mechanical arm 100, and the tail end of the welding mechanical arm 100 is installed with a connecting sleeve 200, which is concentrically and fixedly connected with a welding frame 700, the bottom of the welding frame 700 is circumferentially and equidistantly distributed with welding guns 600 for different stud welding requirements, and the upper surface of the welding frame 700 is circumferentially and equidistantly distributed with assembly mechanisms 800, further comprising:

[0038] The exchange mechanism 400 is fixed on the bottom of the welding frame 700, and the exchange mechanism 400 comprises an exchange frame 410 and a sliding assembly 420, the exchange frame 410 is composed of a left Z-shaped frame 411, a right Z-shaped frame 412 and a U-shaped frame 413, the left Z-shaped frame 411 is fixed on the bottom of the welding frame 700, the right Z-shaped frame 412 is fixed on one side of the left Z-shaped frame 411, and Z-shaped sliding grooves 414 are formed on the end faces of the right Z-shaped frame 412 and the left Z-shaped frame 411 which are close to each other, the bottom of the right Z-shaped frame 412 is fixedly connected with the bottom of the left Z-shaped frame 411 through the U-shaped frame 413, the sliding assembly 420 is located between the right Z-shaped frame 412 and the left Z-shaped frame 411 and is in sliding fit with the Z-shaped sliding grooves 414, and the bottom of the sliding assembly 420 is installed with a fixing frame 610, and the fixing frame 610 is installed with the welding gun 600;

[0039] The limiting mechanism 500 is installed on the bottom of the welding frame 700 and located on the inner side of the plurality of exchange mechanisms 400, and the limiting mechanism 500 is in vertical sliding fit with one end of the sliding assembly 420;

[0040] The control mechanism 300 is installed on the welding frame 700 at one end, and the other end of the control mechanism 300 is located on the outer side of the plurality of exchange mechanisms 400 and the welding frame 700, the inner wall of the other end of the control mechanism 300 is in horizontal sliding fit with the assembly mechanism 800, and the bottom of the control mechanism 300 is in sliding contact with the plurality of sliding assemblies 420;

[0041] The assembly mechanism 800 can fix the regulating mechanism 300 stably outside the welding frame 700 and enable it to rotate around the axis of the welding frame 700. The regulating mechanism 300 can drive the multiple sliding assemblies 420 to move vertically in an interleaved manner by rotating, i.e., one sliding assembly 420 is located at the bottom of the right Z-shaped frame 412 and the left Z-shaped frame 411, and the other sliding assemblies 420 are located at the top of the respective right Z-shaped frame 412 and the left Z-shaped frame 411. The multiple sliding assemblies 420 can drive the respective welding guns 600 to move downward to the center point position (the welding origin position of the welding integrated machine) at the bottom of the welding frame 700 in an interleaved manner by cooperating with the limiting mechanism 500 and the welding frame 700, thereby forming an interleaved state of single welding gun 600 working and multiple welding guns 600 on standby. This not only enables the welding guns 600 with different welding requirements to be quickly moved downward to the welding origin position to realize rapid welding of different studs and meet the continuous welding requirements of multiple point positions and multiple specifications of studs on a workpiece, but also significantly improves the welding efficiency of the integrated machine. In addition, it can realize the nearby gun changing of the mechanical arm, so that the gun changing work can be completed near the workpiece, greatly shortening the gun changing time of the mechanical arm, reducing unnecessary actions of the mechanical arm returning to change the gun, avoiding the action redundancy of the traditional equipment returning to the fixed gun changing station to change the gun, and further improving the welding efficiency of the integrated machine.

[0042] In a preferred embodiment, the types of the welding guns 600 can be adaptively adjusted according to the diameter, material, and position of the workpiece to meet the rapid welding requirements of multiple point studs on the workpiece.

[0043] The vertical distance between the bottom of the regulating mechanism 500 and the bottom of the regulating frame 410 is less than the vertical distance between the top of the regulating mechanism 500 and the top of the regulating frame 410, which ensures that the welding head of the welding gun 600 can move horizontally from the welding origin to the outside during the upward movement of the welding gun 600, avoids collision between the welding gun 600 and the limiting mechanism 500 during the upward movement of the welding gun 600, and prolongs the service life of the welding gun 600.

[0044] The width of the gap between the right Z-shaped frame 412 and the left Z-shaped frame 411 is consistent with the width between the two inner walls of the U-shaped frame 413, and the width of the gap between the right Z-shaped frame 412 and the left Z-shaped frame 411 is greater than the outer width of the welding gun 600, which ensures that the welding gun 600 only enters the gap between the right Z-shaped frame 412 and the left Z-shaped frame 411 during the upward movement, avoids collision between the welding gun 600 and the right Z-shaped frame 412 and the left Z-shaped frame 411, and prolongs the service life of the welding gun 600.

[0045] The welding gun 600 includes a pull arc welding gun 600 and an energy storage welding gun 600, both of which have different discharge powers to meet the welding requirements of different specifications and different point columnar, and the welding gun 600 can adopt a bent pipe or a short pipe style.

[0046] As shown in Figures 2 to 10 As shown in FIG. 6, as a preferred embodiment of the present application, the sliding assembly 420 includes a sliding seat 421, a pulley 422 and a ball 423, the sliding seat 421 is located between the right Z-shaped frame 412 and the left Z-shaped frame 411, both sides of the sliding seat 421 are rotatably installed with the pulley 422, the two pulleys 422 are respectively in sliding cooperation with the Z-shaped sliding groove 414 on the right Z-shaped frame 412 and the left Z-shaped frame 411, one end of the sliding seat 421 is in vertical sliding cooperation with the limiting mechanism 500, and the upper surface of the other end of the sliding seat 421 is distributed with the ball 423 in sliding cooperation with the regulating mechanism 300.

[0047] The regulating mechanism 300 can drive the sliding seat 421 on the multiple exchange frames 410 to move vertically by rotating and sliding cooperation with the ball 423, that is, one sliding seat 421 is located at the bottom of the right Z-shaped frame 412 and the left Z-shaped frame 411, and the other sliding seats 421 are located at the top of the right Z-shaped frame 412 and the left Z-shaped frame 411, and the multiple sliding seats 421 can drive the respective welding guns 600 to move downward to the center point position (the welding origin of the welding machine) at the bottom of the welding frame 700 by cooperating with the limiting mechanism 500 and the welding frame 700, so as to form the staggered state of single welding gun 600 working and multiple welding guns 600 on standby, meet the continuous welding requirements of multiple point positions and multiple specifications of the workpiece, and greatly shorten the welding time, significantly improve the welding efficiency and welding quality of the machine.

[0048] In a preferred embodiment, the sliding seat 421 preferably adopts a square block structure.

[0049] As shown in Figures 2 to 10As shown, as a preferred embodiment of the present application, the control mechanism 300 comprises a rotating sleeve 310, a control protrusion 320, a groove 330, an internal gear 340, a drive gear 350 and a control motor 360, the rotating sleeve 310 is located outside the welding frame 700 and the plurality of exchange mechanisms 400, the inner wall of one end of the rotating sleeve 310 is distributed with the groove 330 which is horizontally slidingly matched with the assembly mechanism 800, the inner wall of one end of the rotating sleeve 310 is also fixed with the internal gear 340, the internal gear 340 is engaged with the drive gear 350 fixed on the output end of the control motor 360, the control motor 360 is fixed on the welding frame 700, the bottom of the rotating sleeve 310 is provided with the control protrusion 320, the control protrusion 320 is fixed in a single distribution state at the bottom of the rotating sleeve 310, and the control protrusion 320 and the bottom of the rotating sleeve 310 are staggered slidingly matched with the plurality of rolling balls 423 on the sliding seat 421.

[0050] The assembly mechanism 800 can stably install the rotating sleeve 310 outside the welding frame 700 by matching with the groove 330, and ensure that it can rotate around the axis of the welding frame 700, the control motor 360 controls the rotation of the drive gear 350, the drive gear 350 drives the rotating sleeve 310 to rotate on the assembly mechanism 800 through the internal gear 340, the rotating sleeve 310 drives the control protrusion 320 to rotate synchronously, the control protrusion 320 can be slidingly matched with the sliding seat 421 distributed at different positions by rotating synchronously with the rotating sleeve 310;

[0051] When the control protrusion 320 is slidingly matched with the sliding seat 421, it can drive the sliding seat 421 to move vertically along the layout track of the right Z-shaped frame 412 and the left Z-shaped frame 411 by matching with the pulley 422 and the Z-shaped sliding groove 414, thereby completing the specified exchange of the single welding gun 600, so that the welding gun 600 can quickly move down to the welding origin position, realizing the rapid and continuous welding of the specified stud, meeting the continuous welding requirements of the workpiece multi-point and multi-specification stud, and significantly improving the welding efficiency of the all-in-one machine;

[0052] The sliding seat 421 slidingly matched with the bottom of the rotating sleeve 310 can quickly rise to the bottom of the right Z-shaped frame 412 and the left Z-shaped frame 411 and be located outside the limiting mechanism 500 under the elastic control of the limiting mechanism 500, thereby realizing the working mode of the all-in-one machine single welding gun 600 and the standby mode of the multiple welding guns 600.

[0053] In a preferred embodiment, the non-adjustable protrusions 320 on the bottom of the rotating sleeve 310 are all smooth end faces and at the same height. This ensures that the multiple slide blocks 421 that slide with this position can be at the same height, thereby ensuring that the multiple welding torches 600 in the standby state are all at the same height.

[0054] like Figures 2 to 11 As shown, in a preferred embodiment of the present invention, the limiting mechanism 500 includes a limiting post 510, a limiting slider 520, a connecting assembly 530, and a return spring 540. The limiting post 510 is vertically fixed to the bottom of the welding frame 700 and is concentric with the welding frame 700. The outer wall of the limiting post 510 has circumferentially equidistant linear grooves 511. The limiting slider 520 is vertically slidably installed in the linear grooves 511. A connecting assembly 530 connected to one end of the slide block 421 is fixed to one side of the limiting slider 520. A return spring 540 connected to the bottom of the welding frame 700 is installed on the top of the limiting slider 520.

[0055] The connecting assembly 530 includes a main slide cylinder 531, a secondary slide cylinder 532, and a connecting slide column 533. The main slide cylinder 531 is horizontally fixed to one side of the limiting slider 520. The secondary slide cylinder 532 is horizontally slidably mounted on one end of the main slide cylinder 531. The connecting slide column 533 is horizontally fixed to one end of the slide block 421. One end of the connecting slide column 533 is horizontally slidably connected to the inner wall of the secondary slide cylinder 532.

[0056] The connecting component 530, in cooperation with the limiting post 510, the limiting slider 520 and the linear slide 511, can limit the rotation direction of the slide block 421, so that it always moves horizontally along the layout trajectory of the right Z-shaped frame 412 and the left Z-shaped frame 411. This ensures that the welding torch 600 always moves horizontally during the position change process, and further ensures that the welding head of the welding torch 600 can accurately reach the welding origin position, reducing its adjustment time and improving the welding quality and welding efficiency of the integrated machine for the workpiece stud.

[0057] In the process that the sliding seat 421 is in sliding fit with the regulating protrusion 320, the regulating protrusion 320 drives the sliding seat 421 to move downward, the sliding seat 421 drives the limiting slider 520 to move downward through the connecting assembly 530, and the limiting slider 520 stretches the return spring 540 to be in a force storage state; when the sliding seat 421 is separated from the regulating protrusion 320, the return spring 540 can drive the limiting slider 520 to move upward through the elastic force of the return spring 540, the limiting slider 520 drives the sliding seat 421 to move upward through the connecting assembly 530, so that the sliding seat 421 is always in contact with the regulating protrusion 320 or the bottom of the rotating sleeve 310, thereby ensuring that the welding gun 600 on the sliding seat 421 can move up and down, so as to complete the working mode of the single welding gun 600 of the all-in-one machine and the standby mode of the multiple welding guns 600, meet the welding requirements of multiple points and multiple specifications of workpieces, and improve the practicability and applicability of the all-in-one machine.

[0058] As shown in Figure 4 , Figure 5 and Figure 12 , as a preferred embodiment of the present application, the assembly mechanism 800 comprises an assembly seat 810, an assembly rod 820, a connecting frame 830, a sliding ball 840, a distance adjusting screw 850 and a sleeve ring 860, the assembly seat 810 is circumferentially equidistantly installed on the top of the welding frame 700, the assembly seat 810 is horizontally symmetrically installed with the assembly rod 820, both of the assembly rod 820 are horizontally slidingly arranged on the assembly seat 810, both of the assembly rod 820 are fixed with the sliding ball 840 in sliding fit with the groove 330, and both of the assembly rod 820 are fixedly connected with the connecting frame 830, the distance adjusting screw 850 is horizontally arranged between the two assembly rods 820 and is threadedly connected with the assembly seat 810, and the tail end of the distance adjusting screw 850 is fixed with the sleeve ring 860 movably connected with the middle part of the connecting frame 830.

[0059] The distance adjusting screw 850 can drive the sleeve ring 860 to synchronously rotate and horizontally move through the rotating mode on the assembly seat 810, the sleeve ring 860 drives the connecting frame 830 to horizontally move, the connecting frame 830 drives both of the assembly rod 820 to synchronously horizontally move, both of the assembly rod 820 drive the respective sliding ball 840 to horizontally move, and the sliding ball can be in or out of fit with the groove 330 through the horizontal moving mode, thereby completing the quick disassembly and assembly of the rotating sleeve 310, and through the synchronous control of the rotating number of multiple distance adjusting screws 850, the rotating sleeve 310 can be ensured to be concentric with the welding frame 700, thereby ensuring that the rotating sleeve 310 can effectively and sufficiently drive multiple sliding seats 421 to work, effectively complete the working mode of the single welding gun 600 of the all-in-one machine and the standby mode of the multiple welding guns 600, meet the welding requirements of multiple points and multiple specifications of workpieces, and improve the practicability and applicability of the all-in-one machine.

[0060] In a preferred embodiment, the distance adjusting screw 850 can also be replaced by an electrically controlled, gas controlled or hydraulically controlled element, for example, the distance adjusting screw 850 is replaced by a pneumatic telescopic cylinder, and the plurality of pneumatic telescopic cylinders are synchronously controlled by the control program arranged on the all-in-one machine to output equal moving strokes, so as to complete the concentric fixing of the rotating sleeve 310.

[0061] The above merely describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-point stud welding integrated machine, comprising a welding robotic arm, the welding robotic arm being mounted on one side of a welding table, a connecting sleeve being installed at the tail end of the welding robotic arm, the connecting sleeve being concentrically and fixedly connected to a welding frame, a plurality of welding torches for different welding requirements being equidistantly distributed circumferentially on the bottom of the welding frame, and assembly mechanisms being equidistantly distributed circumferentially on the upper surface of the welding frame, characterized in that, Also include: The exchange mechanism is fixed on the bottom of the welding frame, the exchange mechanism includes exchange frame and sliding assembly, the exchange frame is composed of left Z frame, right Z frame and U frame, the left Z frame is fixed on the bottom of the welding frame, the right Z frame is fixed on one side of the left Z frame, and the right Z frame and the left Z frame are provided with Z type sliding groove on the end face of each other, the bottom of the right Z frame is fixedly connected with the bottom of the left Z frame through the U frame, the sliding assembly is located between the right Z frame and the left Z frame and is in sliding fit with the Z type sliding groove, the bottom of the sliding assembly is provided with a fixed frame, and the fixed frame is provided with a welding gun; The limiting mechanism is installed on the bottom of the welding frame and located on the inner side of the plurality of exchange mechanisms, and the limiting mechanism is in vertical sliding fit with one end of the sliding assembly; The control mechanism is installed on the welding frame, and the other end of the control mechanism is located on the outer side of the plurality of exchange mechanisms and the welding frame, the inner wall of the other end of the control mechanism is in horizontal sliding fit with the assembly mechanism, and the bottom of the control mechanism is in sliding contact with the plurality of sliding assemblies; The sliding assembly includes a sliding seat, a pulley and a ball, the sliding seat is located between the right Z frame and the left Z frame, the pulley is rotatably installed on the two sides of the sliding seat, the two pulleys are in sliding fit with the Z type sliding grooves on the right Z frame and the left Z frame respectively, one end of the sliding seat is in vertical sliding fit with the limiting mechanism, and the other end of the sliding seat is provided with a plurality of balls in sliding fit with the control mechanism, the control mechanism includes a rotating sleeve, a control protrusion, a groove, an internal gear, a driving gear and a control motor, the rotating sleeve is located on the outer side of the welding frame and the plurality of exchange mechanisms, the inner wall of one end of the rotating sleeve is provided with a groove in horizontal sliding fit with the assembly mechanism, the inner wall of one end of the rotating sleeve is further provided with an internal gear, the internal gear is in meshing engagement with the driving gear fixed on the output end of the control motor, the control motor is fixed on the welding frame, the bottom of the rotating sleeve is provided with a control protrusion, the control protrusion is fixed on the bottom of the rotating sleeve in a single distribution state, the control protrusion and the bottom of the rotating sleeve are in staggered sliding fit with the balls on the plurality of sliding seats, and the limiting mechanism includes a limiting column, a limiting block, a connecting assembly and a return spring, the limiting column is vertically fixed on the bottom of the welding frame and is concentric with the welding frame, the outer wall of the limiting column is circumferentially and equidistantly provided with a straight sliding groove, the limiting block is vertically and slidingly installed in the straight sliding groove, one side of the limiting block is provided with the connecting assembly connected with one end of the sliding seat, and the top of the limiting block is provided with the return spring connected with the bottom of the welding frame.

2. The multi-point stud welding integrator according to claim 1, characterized in that, The vertical distance between the bottom of the exchange frame and the bottom of the limiting mechanism is less than the vertical distance between the top of the exchange frame and the top of the limiting mechanism.

3. The multi-point stud welding integrator according to claim 1, characterized in that, The width of the gap between the right Z frame and the left Z frame is consistent with the width between the inner walls of the two sides of the U frame, and the width of the gap between the right Z frame and the left Z frame is greater than the outer shape width of the welding gun.

4. The multi-point stud welding integrator according to claim 1, characterized in that, The connecting assembly comprises a main sliding cylinder, a secondary sliding cylinder and a connecting slide post, the main sliding cylinder is horizontally fixed on one side of a limiting sliding block, one end of the main sliding cylinder is horizontally and slidingly installed with the secondary sliding cylinder, the connecting slide post is horizontally fixed on one end of a sliding seat, and one end of the connecting slide post is horizontally and slidingly connected with the inner wall of the secondary sliding cylinder.

5. The multi-point stud welding integrator according to claim 1, characterized in that, The assembling mechanism comprises an assembling seat, assembling rods, a connecting frame, sliding balls, a distance adjusting screw and a sleeve ring, the assembling seats are circumferentially and equidistantly installed on the top of the welding frame, the assembling rods are symmetrically and horizontally installed on the assembling seat, the two assembling rods are horizontally and slidingly arranged on the assembling seat, the sliding balls are fixed on one end of the two assembling rods and slidingly matched with the grooves, the other end of the two assembling rods is fixedly connected with the connecting frame, the distance adjusting screw is horizontally arranged between the two assembling rods and is in threaded connection with the assembling seat, and the tail end of the distance adjusting screw is fixed with the sleeve ring which is movably connected with the middle part of the connecting frame.

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