Positioning device for visual guidance laser welding

Abstract

The utility model relates to the technical field of laser welding, in particular to a positioning device for visual guidance laser welding, which comprises a visual guidance laser welding head, an installation mechanism is arranged on the visual guidance laser welding head and is used for installing and fixing the visual guidance laser welding head, and the installation mechanism comprises a main body assembly and an auxiliary body assembly, comprising a fixing frame mounted on a mechanical arm, and a mounting frame fixed to the front surface of the upper end of the fixing frame and used for bearing a visual guidance laser welding head. The adjusting assembly comprises a sliding block installed in the middle of the interior of the fixing frame in a sliding mode, two fixing pieces installed at the two ends of the interior of the fixing frame in a sliding mode and used for being fixed to the mechanical arm, and connecting rods pivoted to the rear ends of the four corners of the sliding block through first rotating shafts correspondingly; the mounting mechanism provided with the visual guidance laser welding head is stably and firmly fixed on the mechanical arm; and when the visual guidance laser welding head needs to be maintained, the visual guidance laser welding head can be quickly disassembled and assembled from the mechanical arm through the mounting mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser welding technical field, concretely is a kind of positioning device for visual guidance laser welding. BACKGROUND

[0002] The positioning device for visual guidance laser welding is an advanced industrial equipment, which combines machine vision technology and laser welding technology to realize accurate identification and positioning of the welding workpiece;The device obtains the image or three-dimensional point cloud data of the welding workpiece through an industrial camera or a laser scanner, and performs preprocessing, such as denoising, grayscale transformation, edge detection, etc., to improve image quality and feature recognition.

[0003] According to the search, the publication number: CN221849207U discloses a welding device based on laser visual guidance, which discloses the technical scheme of "a welding device based on laser visual guidance, comprising a main body and a welding device body arranged above the main body, further comprising an angle adjusting assembly mounted above the main body", which has the technical effects of "adding an angle adjusting assembly, which drives the gear and frame to move on the arc-shaped support plate through motor one, then controls the clamping plate on the horizontal plate to clamp the workpiece through hydraulic rod one, then drives the gear to move on the support plate through motor one to control the overturning of the workpiece, and adjusts the angle of the workpiece by rotating the sleeve on the frame bottom surface through the push plate, which makes welding more convenient and improves the efficiency of welding".

[0004] Generally, the visual guidance laser welding head is fixed on a mechanical arm or a multi-axis module through a mounting bracket for use. The visual guidance laser welding head needs to be regularly maintained and serviced during use to ensure its normal operation and prolong its service life. Therefore, when maintaining and servicing, the welding head needs to be disassembled and reinstalled, which increases the complexity and time cost of operation, and improper operation during disassembly and installation may also cause damage to the welding head. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a positioning device for visual guidance laser welding, which is fixed on a mechanical arm by a mounting mechanism for installing a visual guidance laser welding head, and is stable and firm. It also allows the visual guidance laser welding head to be quickly disassembled and installed from the mechanical arm when it needs to be maintained and serviced.

[0006] In order to achieve the above object, the utility model discloses a positioning device for visual guidance laser welding through the following technical schemes:

[0007] The main body assembly comprises a fixing frame installed on the mechanical arm, and the fixing frame is fixed with a mounting frame on the front surface of the upper end and is used for bearing the visual guidance laser welding head.

[0008] The adjusting assembly comprises a sliding block slidingly installed in the middle of the inner portion of the fixing frame, two fixing pieces slidingly installed at both ends of the inner portion of the fixing frame and used for being fixed on the mechanical arm, a connecting rod pivoted through the first rotating shaft at the rear end of the four corners of the sliding block, and the upper end of the connecting rod is pivoted with the fixing piece through the second rotating shaft, a lead screw rotatably installed in the middle of the inner portion of the sliding block and screwed with the sliding block, and an internal hexagonal head fixed at the lower end of the lead screw.

[0009] Preferably, the fixing piece comprises two fixed arms slidingly installed at both ends of the inner portion of the fixing frame, and the inner end of the fixed arm is pivoted with the upper end of the connecting rod through the second rotating shaft, a fixed head fixed at the outer end of the fixed arm, and a side end plug fixed on the inner wall of the fixed head.

[0010] Preferably, the main body assembly further comprises an extension plate fixed on the rear surface of the upper end of the fixing frame, and the extension plate is fixed with a positioning head at both ends of the bottom portion.

[0011] Preferably, the main body assembly further comprises a reinforcing rib fixed on the top and bottom of the mounting frame, and the reinforcing rib is fixed between the common vertical plane of the mounting frame and the fixing frame.

[0012] Preferably, the main body assembly further comprises a longitudinal sliding groove opened in the middle of the front end of the fixing frame, and a horizontal sliding groove opened on both sides of the front end of the fixing frame.

[0013] Preferably, the visual guidance laser welding head comprises a connecting module fixedly installed on the mounting frame, a mirror module installed at the lower end of the connecting module, a dial module installed at the front end of the mirror module, a laser welding head module installed at the front end of the dial module, a lens module installed on the outer wall of the laser welding head module, a protection module installed at the lower end of the laser welding head module, and a blowing module installed at both ends of the protection module.

[0014] Beneficial effects

[0015] The utility model provides a positioning device for visual guidance laser welding.

[0016] (1) by the wrench rotates the inner hex head drive slider down, slider through the connecting rod drive fixed arm inward shrink, so that the fixed arm drive fixed head on the side end plug inserted into the mechanical arm mounting seat both sides and the corresponding jack, so that the installation of visual guidance laser welding head installation mechanism is fixed on the mechanical arm; also make visual guidance laser welding head need to maintain and maintain when can through the installation mechanism from the mechanical arm quick disassembly.

[0017] (2) when visual guidance laser welding head through the installation mechanism is installed on the mechanical arm, by the installation mechanism in the positioning head from the top down into the mechanical arm mounting seat top and the corresponding jack, so that the installation mechanism is positioned, ensure the accuracy of the position when fixed. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the three-dimensional structure of the utility model schematic diagram;

[0019] Figure 2 is the rear end structure of the utility model schematic diagram;

[0020] Figure 3 is the structure of the installation mechanism of the utility model schematic diagram;

[0021] Figure 4 is the cross section of the installation mechanism of the utility model.

[0022] In the figure: 1, visual guidance laser welding head; 11, connection module; 12, mirror module; 13, dial module; 14, laser welding head module; 15, lens module; 16, protection module; 17, blowing module; 2, installation mechanism; 21, main component; 211, fixed frame; 212, mounting frame; 213, longitudinal sliding slot; 214, transverse sliding slot; 215, reinforcing rib; 216, extension plate; 217, positioning head; 22, adjusting assembly; 221, slider; 222, fixed part; 2221, fixed arm; 2222, fixed head; 2223, side end plug; 223, first rotating shaft; 224, connecting rod; 225, second rotating shaft; 226, lead screw; 227, inner hex head. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to 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 scope of protection of the utility model.

[0024] Please refer to Figure 1 -Figure 4 The utility model provides a technical scheme: a positioning device for visual guidance laser welding, including visual guidance laser welding head 1, visual guidance laser welding head 1 is provided with mounting mechanism 2 and is used for the mounting fixed of visual guidance laser welding head 1, and mounting mechanism 2 includes:

[0025] Main body assembly 21, including the fixed frame 211 of installation on the mechanical arm, the mounting bracket 212 of fixed surface fixed on the fixed frame 211 upper end and be used for the bearing visual guidance laser welding head 1;

[0026] Adjusting assembly 22, including the sliding block 221 of sliding installation in the middle of fixed frame 211 interior, two fixed parts 222 of sliding installation in the both ends of fixed frame 211 interior and be used for fixed on the mechanical arm, the connecting rod 224 of the rear end of four corners of sliding block 221 respectively through the first pivot 223 pivot connection, and the connecting rod 224 upper end is pivotally connected with fixed part 222 through the second pivot 225, the lead screw 226 of rotating installation in the middle of sliding block 221 and with sliding block 221 screw installation, the internal hexagonal head 227 of fixed lower end of lead screw 226.

[0027] In the embodiment, when visual guidance laser welding head 1 is installed on the mounting seat of mechanical arm through mounting mechanism 2, the internal hexagonal head 227 is rotated by spanner, drives sliding block 221 to move downwards, sliding block 221 drives fixed arm 2221 to contract inwards through connecting rod 224, so that fixed arm 2221 drives side end plug 2223 on fixed head 2222 to insert into the insertion hole corresponding to both sides of the mounting seat of mechanical arm, so that mounting mechanism 2 with visual guidance laser welding head 1 is fixed on the mechanical arm;Also make visual guidance laser welding head 1 need to maintain and maintain when can be quickly disassembled from the mechanical arm through mounting mechanism 2.

[0028] Specifically, fixed part 222 includes two fixed arms 2221 of sliding installation in the both ends of fixed frame 211 interior, and the inner end of fixed arm 2221 is pivotally connected with the upper end of connecting rod 224 through the second pivot 225, the fixed head 2222 of fixed end of fixed arm 2221, the side end plug 2223 of fixed inside wall of fixed head 2222.

[0029] In the embodiment, the upper and lower two connecting rods 224 are parallel to each other, so that the upper and lower two fixed parts 222 can move horizontally synchronously;The left and right two connecting rods 224 are symmetrical to each other, so that the left and right two fixed parts 222 move reversely synchronously.

[0030] Specifically, main body assembly 21 further includes the extension plate 216 of fixed on the rear surface of the upper end of fixed frame 211, the positioning head 217 of fixed on both ends of the bottom of extension plate 216.

[0031] In the embodiment, when the visual guiding laser welding head 1 is installed on the mechanical arm through the mounting mechanism 2, the mounting mechanism 2 is positioned by inserting the positioning head 217 in the mounting mechanism 2 from top to bottom into the corresponding insertion hole on the top of the mounting seat of the mechanical arm.

[0032] Specifically, the main body assembly 21 further comprises the reinforcing ribs 215 fixed on the top and bottom of the mounting frame 212, and the reinforcing ribs 215 are fixed between the common vertical plane of the mounting frame 212 and the fixing frame 211.

[0033] In the embodiment, the strength of the combined surface of the mounting frame 212 and the fixing frame 211 can be improved by the reinforcing ribs 215, so that deformation is avoided.

[0034] Specifically, the main body assembly 21 further comprises the longitudinal sliding groove 213 arranged in the middle of the front end of the fixing frame 211, and the transverse sliding grooves 214 arranged on both sides of the front end of the fixing frame 211.

[0035] In the embodiment, the longitudinal sliding groove 213 and the transverse sliding grooves 214 are arranged to avoid interference with the movement of the first rotating shaft 223 and the second rotating shaft 225.

[0036] Specifically, the visual guiding laser welding head 1 comprises the connecting module 11 fixedly installed on the mounting frame 212, the mirror module 12 installed at the lower end of the connecting module 11, the dial module 13 installed at the front end of the mirror module 12, the laser welding head module 14 installed at the front end of the dial module 13, the lens module 15 installed on the outer wall of the laser welding head module 14, the protection module 16 installed at the lower end of the laser welding head module 14, and the air blowing modules 17 installed at both ends of the protection module 16.

[0037] The working principle and use process of the visual guiding laser welding head 1 are as follows: first, when the visual guiding laser welding head 1 is installed on the mechanical arm through the mounting mechanism 2, the mounting mechanism 2 is positioned by inserting the positioning head 217 in the mounting mechanism 2 from top to bottom into the corresponding insertion hole on the top of the mounting seat of the mechanical arm.

[0038] Then, the inner hexagonal head 227 is rotated by a wrench to drive the sliding block 221 to move downward, the sliding block 221 drives the fixed arm 2221 to contract inward through the connecting rod 224, the fixed arm 2221 drives the side end plug 2223 on the fixed head 2222 to be inserted into the corresponding insertion hole on both sides of the mounting seat of the mechanical arm, so that the mounting mechanism 2 with the visual guiding laser welding head 1 is fixed on the mechanical arm, and the visual guiding laser welding head 1 can be quickly disassembled from the mechanical arm through the mounting mechanism 2 when maintenance and repair are needed.

[0039] It is to 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.

[0040] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for vision-guided laser welding, comprising a vision-guided laser welding head (1), characterized in that: The visual guiding laser welding head (1) is provided with a mounting mechanism (2) for mounting and fixing the visual guiding laser welding head (1), and the mounting mechanism (2) comprises: A main body assembly (21) comprising a fixing frame (211) mounted on a mechanical arm, a mounting frame (212) fixed on the front end of the upper end of the fixing frame (211) and used for carrying the visual guiding laser welding head (1); An adjusting assembly (22) comprising a sliding block (221) slidingly mounted in the middle of the inside of the fixing frame (211), two fixing members (222) slidingly mounted at both ends of the inside of the fixing frame (211) and used for being fixed on the mechanical arm, a connecting rod (224) pivoted on the rear end of each of the four corners of the sliding block (221) through a first rotating shaft (223), and the upper end of the connecting rod (224) being pivoted with the fixing member (222) through a second rotating shaft (225), a lead screw (226) rotatably mounted in the middle of the inside of the sliding block (221) and being threadedly mounted with the sliding block (221), and an internal hexagonal head (227) fixed on the lower end of the lead screw (226).

2. The positioning device for vision-guided laser welding according to claim 1, characterized in that: The fixing member (222) comprises two fixed arms (2221) slidingly mounted at both ends of the inside of the fixing frame (211), and the inner end of the fixed arm (2221) is pivoted with the upper end of the connecting rod (224) through the second rotating shaft (225), and the outer end of the fixed arm (2221) is fixed with a fixed head (2222), and the inner wall of the fixed head (2222) is fixed with a side end plug (2223).

3. The positioning device for vision-guided laser welding according to claim 1, wherein: The main body assembly (21) further comprises a (216) fixed on the rear surface of the upper end of the fixing frame (211), and a (217) fixed on the bottom of the (216).

4. The positioning device for vision-guided laser welding of claim 1, wherein: The main body assembly (21) further comprises a reinforcing rib (215) fixed on the top and bottom of the mounting frame (212), and the reinforcing rib (215) is fixed between the common vertical plane of the mounting frame (212) and the fixing frame (211).

5. The positioning device for vision-guided laser welding of claim 1, wherein: The main body assembly (21) further comprises a longitudinal sliding groove (213) opened in the middle of the front end of the fixing frame (211), and a transverse sliding groove (214) opened on both sides of the front end of the fixing frame (211).

6. The positioning device for vision-guided laser welding of claim 1, wherein: The visual guiding laser welding head (1) comprises a connecting module (11) fixedly mounted on the mounting frame (212), a mirror module (12) mounted on the lower end of the connecting module (11), a dial module (13) mounted on the front end of the mirror module (12), a laser welding head module (14) mounted on the front end of the dial module (13), a lens module (15) mounted on the outer wall of the laser welding head module (14), a protection module (16) mounted on the lower end of the laser welding head module (14), and a blowing module (17) mounted on both ends of the protection module (16).

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