Robot electric welding device with positioning function

Abstract

The utility model relates to the field of electric welding devices, in particular to a robot electric welding device with a positioning function. The technical problems that in a traditional operation mode, semi-automatic stud and spot welding are produced in separated areas, so that stud welding production needs to be carried out firstly, then spot welding production needs to be carried out, production cannot be carried out at the same time, and the production efficiency is low are solved. According to the technical scheme, the robot electric welding device with the positioning function comprises a control assembly, a spot welding clamping assembly, a supporting assembling module, a sheet metal part, a positioning clamp, a stud electric welding adjusting assembly and a stud body; according to the difference that semi-automatic stud welding and spot welding are conducted in separated areas in the past, the strength and precision effect of stud welding through a robot spot welding process is consistent with that of stud welding through arcing, and due to the fact that stud welding is completed in a spot welding work station, a robot, welding tongs, a welding machine and a spot welding tool are all existing or serve spot welding; and corresponding stud welding can be carried out only by transforming and integrating partial structures on the spot welding clamp.

Description

Technical Field

[0001] The utility model relates to the field of electric welding devices, in particular to a robot electric welding device with a positioning function. Background Art

[0002] Stud welding is a common welding method in the current welding industry. It is a process in which one end of the stud is brought into contact with the surface of the workpiece to be welded, an electric arc is generated between the two, and a certain pressure is quickly applied to the stud when the joint surface melts, thereby forming a strong connection. It is currently used in various industries such as automobiles, bridges, and roads. Stud welding consists of a main power supply, a stud welding gun, a feeder and other auxiliary tooling equipment. In the traditional operation mode, semi-automatic studs and spot welding are produced in separate areas, which also leads to the need to carry out stud welding production before spot welding production, and they cannot be produced at the same time, resulting in low production efficiency; therefore, we proposed a robot welding device with a positioning function to solve the above problems. Utility Model Content

[0003] In order to overcome the problem in the traditional operation mode, semi-automatic stud and spot welding are produced in separate areas. This also leads to the need to carry out stud welding production first and then spot welding production. Production cannot be carried out at the same time, resulting in low production efficiency.

[0004] The technical scheme of the utility model is as follows: a robot welding device with a positioning function comprises a control component, a spot welding clamping component, a supporting assembly module, a sheet metal part, a positioning fixture, a stud welding adjustment component and a stud body; a spot welding clamping component for clamping and spot welding the sheet metal part is arranged below the control component, a supporting assembly module for supporting and preventing deviation from being protected is arranged at the lower end of the spot welding clamping component, a positioning fixture for positioning, clamping and installation which facilitates the mutual operation between the spot welding clamping component and the stud welding adjustment component is arranged on the sheet metal part, and a stud welding adjustment component for performing stud body welding operation on the sheet metal part is arranged on one side of the spot welding clamping component.

[0005] Preferably, the strength and precision of stud welding using the robot spot welding process are consistent with those of drawn arc stud welding, which reduces equipment investment costs and floor space. Since stud welding is completed at a spot welding workstation, the robot, welding tongs, welding machine, and spot welding tooling are all existing or serve spot welding. Only partial structural modification and integration need to be made on the spot welding fixture to perform the corresponding stud welding, saving the cost of equipment and tooling such as stud welding power supply, feeder, stud welding gun, and stud welding fixture, and improving production efficiency. If drawn arc welding is achieved using the spot welding process, it is often only necessary to add the time for stud welding to the spot welding production rhythm.

[0006] Preferably, the spot welding clamping assembly includes a connecting frame, a spot welding module, a steering adjustment module, a welding clamp connecting rod and a spot welding gun. The connecting frame drives the spot welding module and the welding clamp connecting rod to adjust relative to each other through the steering adjustment module. A spot welding gun is provided at one end of the spot welding module away from the steering adjustment module. During welding, the robot welding clamp is pressurized and energized to conduct welding pressure and welding current.

[0007] Preferably, the support assembly module includes a support plate and a reinforcement platform, wherein the reinforcement platform is located at the upper end of the support plate, and mounting holes are evenly distributed on the reinforcement platform, and the mounting holes are used for adaptive installation, thereby improving the overall installation performance.

[0008] Preferably, a telescopic push rod is provided at the lower end of the positioning fixture, and a telescopic cylinder is provided at the lower end of the telescopic push rod. The positioning fixture is composed of two sets of opening and closing clamps, and the stud parts to be welded are positioned and clamped by the fixture.

[0009] Preferably, the stud welding adjustment assembly includes a first floating block, a second floating block, a KCF insulating sleeve, a first stud welding module, a second stud welding module, a connecting rod, an electrode cap, a first electrode block, a second electrode block and a photoelectric sensor. The first electrode block is installed on the first floating block. The first electrode block can move along the axial direction of the stud body. The photoelectric sensor is used to detect the existence of the stud to prevent the stud from being missed.

[0010] Preferably, the first stud welding module group and the second stud welding module group are arranged opposite to each other, the second stud welding module group is installed on the second floating block, the first stud welding module group and the second stud welding module group have the same structural arrangement, the first stud welding module group and the second stud welding module group both include a conducting rod and an electrode cap, the electrode cap is located at one end of the conducting rod, and the conduction operation is performed through the electrode cap.

[0011] Preferably, a first electrode block and a second electrode block are provided corresponding to the electrode cap, and the electrode, photoelectric sensor and KCF insulating sleeve are installed on the second floating block so that they can move along the axial direction of the stud body. The KCF insulating sleeve is installed on the floating block so that the screw thread on the stud body and the electrode form insulation protection.

[0012] Beneficial effects of the utility model:

[0013] 1. According to the previous production of semi-automatic studs and spot welding in separate areas, the difference is that the strength and precision of stud welding by robot spot welding process are consistent with those of drawn arc stud welding, which reduces the equipment investment cost and floor space. Since stud welding is completed at the spot welding workstation, the robot, welding tongs, welding machine, and spot welding tooling are all existing or serve spot welding. Only partial structural modification and integration are required on the spot welding fixture to carry out the corresponding stud welding, which saves the cost of equipment and tooling such as stud welding power supply, feeder, stud welding gun, and stud welding fixture, and improves production efficiency. If the spot welding process is used to achieve drawn arc welding, it is often only necessary to add the time of stud welding to the spot welding production rhythm to complete the two processes of stud welding and spot welding.

[0014] 2. Eliminate the semi-finished product storage area and semi-finished product transfer trolley. When there are both stud welding and spot welding on the product, if semi-automatic stud welding is used, spot welding and stud welding are often not performed synchronously, so semi-finished product storage and semi-finished product transfer trolleys are required. The spot welding process is used to achieve arc welding, and stud welding is integrated into the spot welding process, which can eliminate the semi-finished product storage area and semi-finished product transfer trolleys, shortening the early development cycle. For renovation projects, such as adding different types of stud welding, new welding guns, feeders, fixtures and other tooling equipment are often required, which results in a long early development cycle, especially for urgent projects, which are often not met. The spot welding process is used to achieve arc welding, and only the existing spot welding fixtures need to be modified to achieve stud welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of a spot welding clamping assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the stud welding adjustment assembly of the utility model;

[0018] Figure 4 It is a schematic diagram of the electrode cap of the utility model.

[0019] Explanation of the accompanying drawings: 1. Control component; 2. Spot welding clamping component; 3. Support assembly module; 4. Sheet metal; 5. Positioning fixture; 6. Stud electric welding adjustment component; 7. Stud body; 201. Spot welding module; 202. Steering adjustment module; 203. Welding clamp connecting rod; 204. Spot welding gun; 601. First floating block; 602. Second floating block; 603. KCF insulating sleeve; 604. First stud welding module; 605. Second stud welding module; 606. Guide rod; 607. Electrode cap; 608. First electrode block; 609. Second electrode block; 610. Photoelectric sensor. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] See also Figure 1-2 The utility model provides an embodiment: a robot welding device with a positioning function, comprising a control component 1, a spot welding clamping component 2, a supporting assembly module 3, a sheet metal part 4, a positioning fixture 5, a stud welding adjustment component 6 and a stud body 7; a spot welding clamping component 2 for clamping and spot welding the sheet metal part 4 is provided below the control component 1, a supporting assembly module 3 for supporting and preventing deviation for protection is provided at the lower end of the spot welding clamping component 2, a positioning fixture 5 for positioning, clamping and installing to facilitate the mutual operation between the spot welding clamping component 2 and the stud welding adjustment component 6 is provided on the sheet metal part 4, and a stud welding adjustment component 6 for performing stud body 7 welding operation on the sheet metal part 4 is provided on one side of the spot welding clamping component 2.

[0022] See also Figure 2-3 In this embodiment, the spot welding clamping assembly 2 includes a connecting frame, a spot welding module 201, a steering adjustment module 202, a welding clamp connecting rod 203 and a spot welding gun 204. The connecting frame drives the spot welding module 201 and the welding clamp connecting rod 203 to adjust relative to each other through the steering adjustment module 202. The spot welding module 201 is provided with a spot welding gun 204 at one end away from the steering adjustment module 202. During welding, the robot welding clamp is adapted to be pressurized and powered, and plays a role in conducting welding pressure and welding current. The support assembly module 3 includes a support plate and a reinforcement platform. The reinforcement platform is located at the upper end of the support plate. The reinforcement platform is evenly provided with mounting holes, and the mounting holes are used for adaptive installation, thereby improving the overall installation performance.

[0023] See also Figure 3 In this embodiment, a telescopic push rod is provided at the lower end of the positioning fixture 5, and a telescopic cylinder is provided at the lower end of the telescopic push rod. The positioning fixture 5 is composed of two sets of opening and closing clamps. The stud parts to be welded are positioned and clamped by the fixture. The stud welding adjustment assembly 6 includes a first floating block 601, a second floating block 602, a KCF insulating sleeve 603, a first stud welding module 604, a second stud welding module 605, a connecting rod 606, an electrode cap 607, a first electrode block 608, a second electrode block 609 and a photoelectric sensor 610. The first electrode block 608 is installed on the first floating block 601. The first electrode block 608 can move along the axial direction of the stud body 7. The photoelectric sensor 610 is used to detect the existence of the stud to prevent the stud from being missed.

[0024] See also Figure 3-4In this embodiment, the first stud welding module 604 and the second stud welding module 605 are arranged opposite to each other, and the second stud welding module 605 is installed on the second floating block 602. The first stud welding module 604 and the second stud welding module 605 have the same structural arrangement. The first stud welding module 604 and the second stud welding module 605 both include a connecting rod 606 and an electrode cap 607. The electrode cap 607 is located at one end of the connecting rod 606, and a conduction operation is performed through the electrode cap 607. A first electrode block 608 and a second electrode block 609 are provided corresponding to the electrode cap 607. The electrode, the photoelectric sensor 610 and the KCF insulating sleeve 603 are installed on the second floating block 602 so that they can move along the axial direction of the stud body 7. The KCF insulating sleeve 603 is installed on the floating block so that the screw thread on the stud body 7 and the electrode form insulation protection.

[0025] When working, the sheet metal is placed on the positioning fixture 5 in advance, and the bottom is supported by the stud support assembly module 3 to be welded. The stud needs to have a flange end face and is positioned by the KCF insulating sleeve 603. The first electrode block 608 can move along the axis direction of the stud body 7. The photoelectric sensor 610 is used to detect the existence of the stud to prevent the stud from being missed. The stud parts to be welded are positioned and clamped by the fixture;

[0026] During welding, the electrode, photoelectric sensor 610 and KCF insulating sleeve 603 are installed on the second floating block 602 so that they can move along the axis of the stud. During welding, they adapt to the pressurization and power-on of the robot welding clamp to conduct welding pressure and welding current. The first stud welding module 604 and the second stud welding module 605 are arranged opposite to each other, and the electrode is installed on the floating block to transmit welding current and welding pressure. The electrode is in thermal contact with the electrode cap 607 and other parts.

[0027] Through the above steps, the strength and precision of stud welding by robot spot welding process are consistent with those of drawn arc stud welding, which reduces equipment investment cost and floor space. Since stud welding is completed at the spot welding workstation, the robot, welding tongs, welding machine, and spot welding tooling are all existing or serve spot welding. Only partial structural modification and integration are required on the spot welding fixture to carry out the corresponding stud welding, which saves the cost of equipment and tooling such as stud welding power supply, feeder, stud welding gun, and stud welding fixture, and improves production efficiency. If the spot welding process is used to achieve drawn arc welding, it is often only necessary to add the time for stud welding to the spot welding production rhythm.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A robot welding device with a positioning function, comprising a control component (1); characterized in that: The invention also comprises a spot welding clamping assembly (2), a supporting assembly module (3), a sheet metal part (4), a positioning fixture (5), a stud electric welding adjustment assembly (6) and a stud body (7); a spot welding clamping assembly (2) for clamping and spot welding the sheet metal part (4) is provided below the control assembly (1); a supporting assembly module (3) for supporting and preventing deviation for protection is provided at the lower end of the spot welding clamping assembly (2); a positioning fixture (5) for positioning, clamping and installing the sheet metal part (4) and facilitating the mutual operation between the spot welding clamping assembly (2) and the stud electric welding adjustment assembly (6); and a stud electric welding adjustment assembly (6) for welding the stud body (7) to the sheet metal part (4) is provided on one side of the spot welding clamping assembly (2).

2. The robot welding device with positioning function according to claim 1, characterized in that: The spot welding clamping assembly (2) comprises a connecting frame, a spot welding module (201), a steering adjustment module (202), a welding clamp connecting rod (203) and a spot welding gun (204); the connecting frame drives the spot welding module (201) and the welding clamp connecting rod (203) to adjust relative to each other through the steering adjustment module (202); and the spot welding gun (204) is provided at one end of the spot welding module (201) away from the steering adjustment module (202).

3. The robot welding device with positioning function according to claim 1, characterized in that: The support assembly module (3) comprises a support plate and a reinforcement platform, wherein the reinforcement platform is located at the upper end of the support plate and mounting holes are evenly distributed on the reinforcement platform.

4. The robot welding device with positioning function according to claim 1, characterized in that: A telescopic push rod is arranged at the lower end of the positioning fixture (5), and a telescopic cylinder is arranged at the lower end of the telescopic push rod. The positioning fixture (5) comprises two groups of opening and closing clamps.

5. The robot welding device with positioning function according to claim 1, characterized in that: The stud welding adjustment assembly (6) comprises a first floating block (601), a second floating block (602), a KCF insulating sleeve (603), a first stud welding module (604), a second stud welding module (605), a connecting rod (606), an electrode cap (607), a first electrode block (608), a second electrode block (609) and a photoelectric sensor (610). The first electrode block (608) is mounted on the first floating block (601), and the first electrode block (608) can move along the axis direction of the stud body (7).

6. The robot welding device with positioning function according to claim 5, characterized in that: The first stud welding module (604) and the second stud welding module (605) are arranged opposite to each other. The second stud welding module (605) is installed on the second floating block (602). The first stud welding module (604) and the second stud welding module (605) have the same structural arrangement. Both the first stud welding module (604) and the second stud welding module (605) include a connecting rod (606) and an electrode cap (607). The electrode cap (607) is located at one end of the connecting rod (606).

7. The robot welding device with positioning function according to claim 5, characterized in that: A first electrode block (608) and a second electrode block (609) are provided corresponding to the electrode cap (607), and the electrodes, the photoelectric sensor (610) and the KCF insulating sleeve (603) are installed on the second floating block (602) so that they can move along the axis direction of the stud body (7).

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