Self-adaptive positioning device of welding robot

Abstract

The utility model discloses a welding robot self-adaptive positioning device, which relates to the technical field of welding robots, and comprises a welding robot, a positioning mechanism is arranged on the front side of the welding robot, the positioning mechanism comprises a U-shaped fixing plate, a turnover clamping mechanism is arranged on the top of the horizontal position of the U-shaped fixing plate, and the turnover clamping mechanism is arranged on the top of the horizontal position of the U-shaped fixing plate. Placing mechanisms are arranged on the front side and the rear side of the top of the U-shaped fixing plate, the overturning clamping mechanism comprises two clamping rear plates, clamping plates are arranged on the opposite faces of the two clamping rear plates, and the right side of the clamping plate on the right side is movably connected with the left side of the clamping rear plate on the right side. According to the positioning device, through mutual cooperation of the positive and negative threaded rod, the movable vertical plate, the clamping rear plate, the clamping plate and the servo motor, a workpiece welded by a welding robot can still be overturned after being positioned on the positioning device, welding of different faces of the workpiece is facilitated, the workpiece does not need to be overturned manually after positioning is removed, and welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding robot technical field, concretely relates to a welding robot self -adaptation positioning device. BACKGROUND

[0002] The laser welding robot is a kind of highly automated welding equipment, it combines precise laser technology and advanced robot system to realize efficient, accurate welding operation, and laser robot needs to use positioning device to position and fix the welding when welding, to facilitate subsequent welding work. For the following problems existing in prior art:

[0003] Because when the workpiece needs to carry out different face welding work, the existing positioning device can only weld the workpiece single face, then release the positioning state, manually turn over the workpiece and adjust position again, and then fix, to start welding, the operation process is slow, the efficiency is low, cannot adapt to the welding requirement of different workpieces, and the positioning device used by the existing laser welding robot mostly adopts the way of clamping to fix, and due to the singleness of clamping plate, when positioning the workpiece of arc edge modeling, such as disc, bearing etc., the fixing effect is poor, and the applicability is poor. UTILITARY MODEL CONTENTS

[0004] The utility model provides a kind of welding robot self -adaptation positioning device to solve the problems raised in above background technology.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A kind of welding robot self -adaptation positioning device, including welding robot, the front side of the welding robot is provided with positioning mechanism, the positioning mechanism includes U-shaped fixed plate, the top of the horizontal of the U-shaped fixed plate is provided with turnover clamping mechanism, the top of the U-shaped fixed plate is provided with placement mechanism on the front and back sides, the turnover clamping mechanism includes two clamping back plates, the opposite surface of two clamping back plates is provided with clamping plate, the right side of right side clamping plate is movably connected with the left side of right side clamping back plate, the left side of left side clamping back plate is fixedly installed with servo motor, the output shaft of the servo motor is penetrated to the right side of left side clamping back plate and is fixedly connected with the left side of clamping plate of clamping back plate right side, right side clamping back plate is provided with the limit plug hole that is penetrated left and right, the limit plug hole is slidably installed with limit plug plate in the inside, the top left side of limit plug plate is penetrated limit plug hole to the left side of right side clamping back plate and is overlapped with the bottom of clamping plate.

[0007] The further improvement in the utility model technical scheme lies in that: the middle of the top of the horizontal part of the U-shaped fixing plate is provided with a sliding groove, a motor is fixedly installed on the right side of the U-shaped fixing plate, the output shaft of the motor penetrates into the inner cavity of the sliding groove and is fixedly installed with a right and left threaded rod, the outer wall of the right and left threaded rod is respectively provided with a thread wall with opposite threads, and the outer wall of the two thread walls is fixedly installed with a moving vertical plate.

[0008] The further improvement in the utility model technical scheme lies in that: the inner side of the sliding groove is slidably connected with the two moving vertical plates, and the top of the two moving vertical plates penetrates above the horizontal part of the U-shaped fixing plate and is fixedly connected with the bottom of the two clamping back plates.

[0009] The further improvement in the utility model technical scheme lies in that: the placing mechanism comprises two fixed vertical plates, the two fixed vertical plates are fixedly installed on the top of the horizontal part of the U-shaped fixing plate and are provided with front and rear through insertion holes, the inner circle of the two insertion holes is aligned front and rear, and the inner circle of the two insertion holes is slidably installed with a placing sliding plate.

[0010] The further improvement in the utility model technical scheme lies in that: the opposite surfaces of the two clamping plates are provided with T-shaped clamping grooves penetrating the top thereof, the inner side of the two T-shaped clamping grooves is clamped with a T-shaped clamping plate, the opposite ends of the two T-shaped clamping plates are fixedly installed with arc-shaped clamping plates, and the opposite surfaces of the two arc-shaped clamping plates are fixedly installed with rubber pads.

[0011] The further improvement in the utility model technical scheme lies in that: the two T-shaped clamping plates are provided with front and rear through threaded butt joints, the front side of the two clamping plates is provided with threaded holes penetrating into the inner cavity of the T-shaped clamping groove, the two threaded holes are front and rear aligned with the two threaded butt joints, the inner circle of the two threaded holes is fixedly installed with a threaded long rod, the rear end of the two threaded long rods is front and rear threaded connected with the inner circle of the two threaded butt joints, and the front end of the two threaded long rods is fixedly installed with a locking knob.

[0012] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0013] 1、The utility model provides a kind of welding robot self-adapting positioning device, the mutual cooperation between right and left threaded rod, moving vertical plate, clamping back plate, clamping plate and servo motor, so that the workpiece welded by welding robot is positioned on positioning device and still can be turned over, it is convenient to weld different faces of workpiece, without removing positioning, manually turn over workpiece, improve welding efficiency.

[0014] 2, the utility model provides a welding robot self -adaptation positioning device, through the mutual matching between T type clamping groove, T type clamping plate, arc clamping plate, threaded butt joint, threaded hole, threaded long rod, locking knob, so that the workpiece of arc edge and the workpiece positioning device of plane edge can carry out stable clamping, improve the adaptability of positioning device to different workpieces. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is whole schematic view of the utility model structure;

[0016] Figure 2 It is U type fixed plate section view schematic view of the utility model structure;

[0017] Figure 3 It is placement mechanism schematic view of the utility model structure;

[0018] Figure 4 It is turnover clamping mechanism schematic view of the utility model structure;

[0019] Figure 5 It is clamping plate section view schematic view of the utility model structure.

[0020] In the drawing: 1, welding robot;2, positioning mechanism;21, U type fixed plate;211, sliding slot;212, motor;213, positive and negative threaded rod;214, moving vertical plate;22, turnover clamping mechanism;221, clamping back plate;222, clamping plate;2221, T type clamping groove;2222, T type clamping plate;2223, arc clamping plate;2224, rubber pad;2225, threaded butt joint;2226, threaded hole;2227, threaded long rod;2228, locking knob;223, servo motor;224, limit plug hole;225, limit plug plate;23, placement mechanism;231, fixed vertical plate;232, plug hole;233, placement slide plate. DETAILED DESCRIPTION

[0021] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] As Figure 1 , Figure 2The utility model provides a kind of welding robot self-adapting positioning device, including welding robot 1, the front side of welding robot 1 is provided with positioning mechanism 2, positioning mechanism 2 includes U-shaped fixed plate 21, the top of the horizontal portion of U-shaped fixed plate 21 is provided with turnover clamping mechanism 22, the top of the horizontal portion of U-shaped fixed plate 21 is provided with placing mechanism 23, the top of the horizontal portion of U-shaped fixed plate 21 is provided with chute 211, the right side of U-shaped fixed plate 21 is fixedly installed with motor 212, the output shaft of motor 212 penetrates to the inner cavity of chute 211 and is fixedly installed with positive and negative screw rod 213, the outer wall of positive and negative screw rod 213 is provided with thread wall with opposite thread respectively on left and right sides, two movable vertical plates 214 are screw-mounted on the outer wall of two thread walls, two movable vertical plates 214 are slidably connected with the inner side of chute 211, and the top of two movable vertical plates 214 penetrates to the horizontal portion of U-shaped fixed plate 21 above and is fixedly connected with the bottom of two clamping back plates 221 respectively;

[0023] After placing workpiece, motor 212 can be started to drive positive and negative screw rod 213 in chute 211 to rotate, the thread wall with opposite thread on the left and right sides of the outer wall of positive and negative screw rod 213 is connected with two movable vertical plates 214 by thread, so that two clamping back plates 221 can be driven to approach each other, and workpiece can be clamped and fixed by clamping plate 222 on the opposite surface of two clamping back plates 221.

[0024] As shown in the figure, Figure 3 Placing mechanism 23 includes two fixed vertical plates 231, two fixed vertical plates 231 are fixedly installed on the top of the horizontal portion of U-shaped fixed plate 21 on the front and back sides respectively, two fixed vertical plates 231 are provided with through hole 232, the inner circle of two through holes 232 is aligned front and back, and placing slide plate 233 is slidably installed in the inner circle of two through holes 232;

[0025] When fixing workpiece to be welded, workpiece is placed on the top of placing slide plate 233, so that it is convenient to clamp and fix, after fixing is completed, placing slide plate 233 is extracted from the through hole 232 of two fixed vertical plates 231, so that it does not hinder workpiece to be turned over, after workpiece is welded, placing slide plate 233 is inserted into two through holes 232, so that it is convenient to take workpiece.

[0026] As shown in the figure, Figure 4As shown, the turnover clamping mechanism 22 comprises two clamping back plates 221, the opposite surfaces of the two clamping back plates 221 are provided with clamping plates 222, the right side of the right clamping plate 222 is movably connected with the left side of the right clamping back plate 221, the left side of the left clamping back plate 221 is fixedly installed with a servo motor 223, the output shaft of the servo motor 223 penetrates to the right side of the left clamping back plate 221 and is fixedly connected with the left side of the clamping plate 222 on the right side of the clamping back plate 221, the right clamping back plate 221 is provided with a left-right through limiting insertion hole 224, the inner side of the limiting insertion hole 224 is slidably installed with a limiting insertion plate 225, and the top left side of the limiting insertion plate 225 penetrates the limiting insertion hole 224 to the left side of the right clamping back plate 221 and is overlapped with the bottom of the clamping plate 222;

[0027] After the workpiece is clamped, the limiting insertion plate 225 in the limiting insertion hole 224 is pulled out, the limiting of the right clamping plate 222 is released, and then the servo motor 223 is started to control the rotating speed and start-stop of the servo motor 223 by using the encoder, so that the clamping plate 222 and the clamped workpiece can be precisely turned over, the different surfaces of the workpiece are conveniently and quickly welded, after the workpiece is welded, the limiting insertion plate 225 is reinserted into the limiting insertion hole 224 until the top is overlapped with the bottom of the right clamping plate 222, so that the right clamping plate 222 is prevented from shaking when the workpiece is not clamped.

[0028] As shown in Figure 5 two T-shaped clamping plates 2222 are clamped in the two T-shaped clamping grooves 2221, the opposite ends of the two T-shaped clamping plates 2222 are fixedly installed with arc-shaped clamping plates 2223, the opposite surfaces of the two arc-shaped clamping plates 2223 are fixedly installed with rubber pads 2224, the two T-shaped clamping plates 2222 are provided with front-rear through threaded butt joints 2225, the front sides of the two clamping plates 222 are provided with threaded holes 2226 penetrating into the inner cavities of the T-shaped clamping grooves 2221, the two threaded holes 2226 are respectively front-rear aligned with the two threaded butt joints 2225, the inner circles of the two threaded holes 2226 are threadedly installed with threaded long rods 2227, the rear ends of the two threaded long rods 2227 are respectively threadedly connected with the inner circles of the two threaded butt joints 2225, and the front ends of the two threaded long rods 2227 are fixedly installed with locking knobs 2228;

[0029] When the clamped workpiece is an arc-shaped bearing or disc, the T-shaped clamping plate 2222 on one side of the arc-shaped clamping plate 2223 is aligned with the T-shaped clamping slot 2221 on the clamping plate 222 and is clamped from top to bottom, so that the threaded butt joint hole 2225 is aligned with the threaded hole 2226, and then the locking knob 2228 is selected to drive the threaded long rod 2227 to rotate and move backward by the threaded connection with the threaded hole 2226, until the threaded butt joint hole 2225 is threaded connected, the locking of the arc-shaped clamping plate 2223 is completed, and when the two clamping plates 222 are close to each other to clamp the workpiece, the rubber pads 2224 on the opposite sides of the two arc-shaped clamping plates 2223 can be used to stably clamp the workpiece.

[0030] The working principle of the adaptive positioning device of the welding robot will be described in detail below.

[0031] As Figures 1-5As shown, when the workpiece needing welding is fixed, the workpiece is placed on the placement slide plate 233, and the workpiece is clamped and fixed, and then the placement slide plate 233 is pulled out from the insertion hole 232 of the two fixed vertical plates 231, so as not to hinder the workpiece from being turned over, and after the workpiece is placed, the motor 212 drives the forward and reverse screw rod 213 in the sliding groove 211 to rotate, and the opposite screw walls on the left and right sides of the outer wall of the forward and reverse screw rod 213 are threadedly connected with the two moving vertical plates 214, so as to drive the two clamping back plates 221 to move close to each other, and the clamping plates 222 on the opposite sides of the two clamping back plates 221 clamp and fix the workpiece, and after the clamping and the placement slide plate 233 are pulled out, the limiting insert plate 225 in the limiting insertion hole 224 is pulled out, the limiting of the right clamping plate 222 is released, and then the servo motor 223 controls the rotation speed and start-stop of the servo motor 223 through the encoder, so as to drive the clamping plate 222 and the clamped workpiece to be accurately turned over, facilitate the workpiece to be quickly welded on different surfaces, and after the workpiece is welded, the placement slide plate 233 is inserted into the two insertion holes 232, the workpiece is conveniently taken, and the limiting insert plate 225 is reinserted into the limiting insertion hole 224 until the top is overlapped with the bottom of the right clamping plate 222, so as to avoid the shaking of the right clamping plate 222 when the workpiece is not clamped, and when the clamped workpiece is an arc-shaped bearing or a disc, the T-shaped clamping plate 2222 on one side of the arc-shaped clamping plate 2223 is aligned with the T-shaped clamping slot 2221 in the clamping plate 222 and is clamped from top to bottom, so that the threaded butt joint hole 2225 is aligned with the threaded hole 2226, the threaded long rod 2227 is rotated and moved backward through the threaded connection with the threaded hole 2226 by selecting the locking knob 2228, until the threaded butt joint hole 2225 is threadedly connected, the locking of the arc-shaped clamping plate 2223 is completed, and when the two clamping plates 222 move close to each other to clamp the workpiece, the rubber pads 2224 on the opposite sides of the two arc-shaped clamping plates 2223 stably clamp the workpiece.

[0032] The above has made a detailed description of the utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A welding robot adaptive positioning device comprising a welding robot (1), characterized by: The front side of the welding robot (1) is provided with a positioning mechanism (2), the positioning mechanism (2) comprises a U-shaped fixed plate (21), the top of the horizontal part of the U-shaped fixed plate (21) is provided with a turnover clamping mechanism (22), and the top of the U-shaped fixed plate (21) is provided with a placing mechanism (23) on the front and back sides; the turnover clamping mechanism (22) comprises two clamping back plates (221), the opposite surfaces of the two clamping back plates (221) are provided with clamping plates (222), the right side of the right clamping plate (222) is movably connected with the left side of the right clamping back plate (221), a servo motor (223) is fixedly installed on the left side of the left clamping back plate (221), the output shaft of the servo motor (223) penetrates to the right side of the left clamping back plate (221) and is fixedly connected with the left clamping plate (222) on the right clamping back plate (221), the right clamping back plate (221) is provided with a limiting insertion hole (224) penetrating through left and right sides, and a limiting insertion plate (225) is slidably installed on the inner side of the limiting insertion hole (224); the top left side of the limiting insertion plate (225) penetrates through the limiting insertion hole (224) to the left side of the right clamping back plate (221) and is overlapped with the bottom of the clamping plate (222).

2. The adaptive positioning device for welding robots according to claim 1, characterized in that: The top middle of the horizontal part of the U-shaped fixed plate (21) is provided with a chute (211), a motor (212) is fixedly installed on the right side of the U-shaped fixed plate (21), the output shaft of the motor (212) penetrates to the inner cavity of the chute (211) and is fixedly installed with a forward and reverse threaded rod (213), the outer walls of the left and right sides of the forward and reverse threaded rod (213) are respectively provided with threaded walls with opposite threads, and the outer walls of the two threaded walls are threadedly installed with movable vertical plates (214).

3. The self-adapting positioning device for welding robot according to claim 2, characterized in that: The two movable vertical plates (214) are slidably connected with the inner side of the chute (211), and the top ends of the two movable vertical plates (214) penetrate to above the horizontal part of the U-shaped fixed plate (21) and are fixedly connected with the bottoms of the two clamping back plates (221) respectively.

4. The self-adapting positioning device for welding robot according to claim 1, characterized in that: The placing mechanism (23) comprises two fixed vertical plates (231), and the two fixed vertical plates (231) are fixedly installed on the top of the horizontal part of the U-shaped fixed plate (21) on the front and back sides respectively; the two fixed vertical plates (231) are provided with insertion holes (232) penetrating through front and back sides, the inner circles of the two insertion holes (232) are aligned in front and back directions, and a placing sliding plate (233) is slidably installed in the inner circles of the two insertion holes (232).

5. The self-adapting positioning device for welding robot according to claim 1, characterized in that: The opposite surfaces of the two clamping plates (222) are provided with T-shaped clamping grooves (2221) penetrating through the top portions thereof, the inner sides of the two T-shaped clamping grooves (2221) are clamped with T-shaped clamping plates (2222), the opposite ends of the two T-shaped clamping plates (2222) are fixedly installed with arc-shaped clamping plates (2223), and the opposite surfaces of the two arc-shaped clamping plates (2223) are fixedly installed with rubber pads (2224).

6. A welding robot adaptive positioning device according to claim 5, characterized in that: Both the T-shaped clamping plates (2222) are provided with front and rear through threaded butt joints (2225), the front side of both the clamping plates (222) is provided with threaded holes (2226) penetrating into the inner cavity of the T-shaped clamping slot (2221), both the threaded holes (2226) are respectively aligned with the front and rear threaded butt joints (2225), the inner circle of both the threaded holes (2226) is respectively provided with a threaded long rod (2227), the rear end of both the threaded long rods (2227) is respectively connected with the inner circle of both the threaded butt joints (2225), and the front end of both the threaded long rods (2227) is respectively fixedly provided with a locking knob (2228).

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