Welding workstation with automatic gun changing function

Abstract

The utility model belongs to the technical field of welding workstations, and discloses a welding workstation with an automatic gun changing function, which comprises a welding robot, a spot welding gun and a stud welding gun, the tail end of the welding robot is connected with the spot welding gun, the spot welding gun is connected with the stud welding gun through a quick changing mechanism, and the stud welding gun is connected with the welding robot. A stud welding gun and a spot welding gun are integrated together, a robot is adopted for nail planting, the nail planting quality can be improved to a great extent, the clamp cost / site space is reduced, operators are reduced, the spot welding gun and the stud welding gun are quickly connected through the quick change mechanism, and when the spot welding gun is used for welding, the welding efficiency is improved. The spot welding gun and the stud welding gun are separated from each other through the quick-change mechanism so as to ensure that the spot welding gun and the clamp tool are not interfered during spot welding, and the stud welding gun is connected to continue stud welding after spot welding is completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding workstation technical field, specifically a kind of welding workstation with automatic gun changing function. BACKGROUND

[0002] Welding workstation is mainly composed of welding robot, control system, welding power supply, welding tool, sensor system, workstation, and can realize automatic welding, intelligently senses welding environment, weld tracking and welding dynamic process by computer system, controls various complex spatial curve welds in real time according to sensing information, so that welding torch can realize planned trajectory operation, and real-time intelligent control is carried out to welding dynamic process.

[0003] The current automobile body industry sheet metal welding technology is mainly point welding and arc welding, and is completed by cooperating with laser welding, rivet and other less connection technologies, and the sheet metal is connected with other parts by welding, and is equipped with other standard parts such as stud, nut and screw rod for assembling interior, electrical and other parts to realize accurate installation and function, for the workpiece with point welding and a small amount of stud welding welding process, the existing solution has:

[0004] 1) the welding guide matched with stud welding is designed on the spot welding fixture, and manual stud welding gun is used for welding;

[0005] 2) a set of stud welding tool is added to be used for stud welding;

[0006] The above solutions have the disadvantages of high fixture cost, high welding equipment cost and unstable welding quality.

[0007] Therefore, a welding workstation with automatic gun changing function is proposed for the above problems. INVENTION CONTENTS

[0008] To solve the problems in the above background art, the utility model provides a welding workstation with automatic gun changing function, which has the advantages of integrating stud welding gun and spot welding gun together, and using robot to plant nails, which can greatly improve the quality of planting nails.

[0009] To achieve the above purpose, the utility model provides the following technical scheme: a welding workstation with automatic gun changing function, including welding robot, spot welding gun, stud welding gun, the end of the welding robot is connected with spot welding gun, and the spot welding gun is connected with stud welding gun through quick-change mechanism;

[0010] The quick change mechanism comprises a first transition connecting plate which is connected to a spot welding gun through a bolt connection point, the first transition connecting plate is fixedly connected with a first quick change tool disc through a bolt, the first quick change tool disc is connected with a second quick change tool disc through a locking assembly, the second quick change tool disc is fixedly connected with a second transition connecting plate through a bolt, and the second transition connecting plate is fixedly connected with a stud welding gun through a bolt.

[0011] Preferably, the bottom end of the welding robot is fixedly connected with a fixing seat, the bottom of the fixing seat is fixedly connected with a base, and the base is fixedly connected with the fixing seat.

[0012] Preferably, the base is provided with a positioning placing rack matched with the stud welding gun.

[0013] Preferably, the locking assembly comprises a plurality of positioning rods which are uniformly distributed on the bottom of the first quick change tool disc, the second quick change tool disc is provided with positioning holes corresponding to the positioning rods, the positioning rods are provided with locking holes, the second quick change tool disc is provided with locking rods corresponding to the locking holes, the locking rods are fixedly connected with displacement blocks, and the displacement blocks are connected with a displacement driving mechanism.

[0014] Preferably, the displacement driving mechanism comprises a gear ring fixedly connected with the displacement blocks, the gear ring is engagedly connected with a gear, and the gear is connected with a driving motor through a motor shaft.

[0015] Preferably, the bottom of the first quick change tool disc is protruded downward to form a positioning protrusion, and the second quick change tool disc is recessed inward at a position corresponding to the positioning protrusion to form a positioning recess.

[0016] Compared with the prior art, the welding robot has the advantages that:

[0017] 1. The spot welding gun and the stud welding gun are integrated together, the robot is used for planting the stud, the quality of the planted stud can be greatly improved, the cost of the clamp and the space of the site can be reduced, and the operator can be reduced.

[0018] 2. The quick change mechanism is arranged, the spot welding gun and the stud welding gun are quickly connected, the spot welding gun is separated from the stud welding gun during welding, so that the spot welding gun does not interfere with the clamp tool, and the stud welding gun is connected after the spot welding is completed to continue the stud welding. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a structure schematic view of the quick change mechanism of the utility model;

[0021] Figure 3 It is the bottom structure schematic view of the first quick-change tool disc of the utility model;

[0022] Figure 4 It is the structure schematic view of the second quick-change tool disc of the utility model;

[0023] Figure 5 It is the structure schematic view of the quick-change mechanism in the second quick-change tool disc of the utility model.

[0024] In the figure: 1, welding robot; 2, spot welding torch; 3, stud welding torch;

[0025] 4, quick-change mechanism; 41, first transition connecting plate; 42, first quick-change tool disc;

[0026] 43, locking assembly; 431, positioning rod; 432, positioning hole; 433, locking hole; 434, locking rod; 435, displacement block;

[0027] 436, displacement driving mechanism; 4361, gear ring; 4362, gear; 4363, driving motor;

[0028] 44, second quick-change tool disc; 45, second transition connecting plate;

[0029] 5, fixed seat; 6, base; 7, reinforcing rib plate; 8, positioning placing rack; 9, positioning protrusion; 10, positioning recess. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] As shown in Figures 1 to 5 The utility model provides a kind of welding workstation with automatic gun changing function, including welding robot 1, spot welding torch 2, stud welding torch 3, the end of welding robot 1 connects spot welding torch 2, spot welding torch 2 is connected with stud welding torch 3 by quick-change mechanism 4, stud welding torch 3 is integrated with spot welding torch 2, adopts robot planting nail, can greatly improve the quality of planting nail, and reduce fixture cost / site space and reduce operator;

[0032] The quick-change mechanism 4 includes a first transition connecting plate 41 connected to the spot welding gun 2 by bolts. The first transition connecting plate 41 is fixedly connected to a first quick-change tool tray 42 by bolts. The first quick-change tool tray 42 is connected to a second quick-change tool tray 44 by a locking assembly 43. The second quick-change tool tray 44 is fixedly connected to a second transition connecting plate 45 by bolts. The second transition connecting plate 45 is fixedly connected to a stud welding gun 3 by bolts, realizing the quick connection between the spot welding gun 2 and the stud welding gun 3. When the spot welding gun 2 is welding, the quick-change mechanism 4 separates the spot welding gun 2 and the stud welding gun 3 to ensure that there is no interference with the fixture tooling during spot welding. After spot welding is completed, the stud welding gun 3 is connected to continue stud welding.

[0033] Specifically, the bottom of the welding robot 1 is fixedly connected to a fixed base 5, the bottom of the fixed base 5 is fixedly connected to a base 6, and a reinforcing rib 7 is fixedly connected between the base 6 and the fixed base 5.

[0034] Furthermore, a positioning bracket 8 matching the stud welding gun 3 is installed on the base 6 for positioning and placing the disengaged stud welding gun 3.

[0035] Furthermore, the locking assembly 43 includes a plurality of evenly distributed positioning rods 431 fixed to the bottom of the first quick-change tool disk 42. Positioning holes 432 are provided on the second quick-change tool disk 44 at positions corresponding to the positioning rods 431. Locking holes 433 are provided on the positioning rods 431. Locking rods 434 are provided in the second quick-change tool disk 44 at positions corresponding to the locking holes 433. A displacement block 435 is fixedly connected to the locking rod 434. The displacement block 435 is connected to a displacement driving mechanism 436 to realize the connection and separation of the stud welding torch 3 and the spot welding torch 2.

[0036] It is worth noting that the displacement drive mechanism 436 includes a gear ring 4361 fixedly connected to the displacement block 435. The gear ring 4361 is meshed with a gear 4362. The gear 4362 is connected to a drive motor 4363 through a motor shaft, which is used to drive the displacement of the displacement block 435 and the locking rod 434, so that the locking rod 434 can extend into or leave the locking hole 433.

[0037] It is worth noting that the bottom of the first quick-change tool disk 42 protrudes downward to form a positioning protrusion 9, and the position on the second quick-change tool disk 44 corresponding to the positioning protrusion 9 is recessed inward to form a positioning groove 10, which further realizes the precision when the first quick-change tool disk 42 and the second quick-change tool disk 44 are connected.

[0038] Among them, the welding robot 1, the spot welding torch 2, the stud welding torch 3, and the drive motor 4363 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, a controller, and a switch, which are not the main technical points of this patent and will not be described in detail.

[0039] Working principle and process: the stud welding gun 3 is moved to the positioning rack 8 through the welding robot 1, the driving motor 4363 of the locking assembly 43 is started, the gear 4362 drives the gear ring 4361 to rotate, the displacement block 435 drives the locking rod 434 to move in a new arc-shaped track, the locking rod 434 leaves the locking hole 433 on the positioning rod 431, the welding robot 1 drives the spot welding gun 2 and the first transition connecting plate 41 and the first quick-change tool disc 42 to move upwards, so that the stud welding gun 3, the second transition connecting plate 45 and the second quick-change tool disc 44 are separated, that is, the spot welding gun 2 and the stud welding gun 3 are separated, the welding robot 1 drives the spot welding gun 2 to perform spot welding work, so as to ensure that there is no interference with the clamp tool during spot welding, after the spot welding is completed, the stud welding gun 3 is reconnected to the spot welding gun 2, so as to drive the stud welding gun 3 to perform stud welding work, and when the first quick-change tool disc 42 is connected with the second quick-change tool disc 44, mechanical connection is realized, and the connection of electrical signals and the required gas source of the stud welding gun 3 is also ensured.

[0040] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments change, modify, replace and vary in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A welding station with automatic gun change function, comprising a welding robot (1), a spot welding gun (2), a stud welding gun (3), characterized in that: The welding robot (1) is connected with a spot welding gun (2), and the spot welding gun (2) is connected with a stud welding gun (3) through a quick-change mechanism (4); The quick-change mechanism (4) comprises a first transition connecting plate (41) connected with the spot welding gun (2) through bolts, the first transition connecting plate (41) is fixedly connected with a first quick-change tool disc (42) through bolts, the first quick-change tool disc (42) is connected with a second quick-change tool disc (44) through a locking assembly (43), the second quick-change tool disc (44) is fixedly connected with a second transition connecting plate (45) through bolts, and the second transition connecting plate (45) is fixedly connected with the stud welding gun (3) through bolts.

2. The welding station with automatic gun changeover function according to claim 1, characterized in that: The bottom end of the welding robot (1) is fixedly connected with a fixing seat (5), the bottom of the fixing seat (5) is fixedly connected with a base (6), and the base (6) and the fixing seat (5) are fixedly connected with a reinforcing rib plate (7).

3. The welding station with automatic gun changeover function according to claim 2, characterized in that: A positioning placing rack (8) matched with the stud welding gun (3) is installed on the base (6).

4. The welding station with automatic gun changeover function of claim 1, wherein: The locking assembly (43) comprises a plurality of positioning rods (431) uniformly distributed on the bottom of the first quick-change tool disc (42), the second quick-change tool disc (44) is provided with a positioning hole (432) corresponding to the positioning rod (431), the positioning rod (431) is provided with a locking hole (433), the second quick-change tool disc (44) is provided with a locking rod (434) corresponding to the locking hole (433), the locking rod (434) is fixedly connected with a displacement block (435), and the displacement block (435) is connected with a displacement driving mechanism (436).

5. The welding station with automatic gun changeover function according to claim 4, characterized in that: The displacement driving mechanism (436) comprises a gear ring (4361) fixedly connected with the displacement block (435), the gear ring (4361) is engaged with a gear (4362), and the gear (4362) is connected with a driving motor (4363) through a motor shaft.

6. The welding station with automatic gun changeover function of claim 1, wherein: The bottom of the first quick-change tool disc (42) is downwardly protruded to form a positioning protrusion (9), and the second quick-change tool disc (44) is inwardly recessed to form a positioning recess (10) corresponding to the positioning protrusion (9).

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