Rotating roller contact type grounding device

Abstract

The utility model discloses a rotating roller contact type grounding device, which relates to the technical field of welding, and comprises a rack and a conveying roller rotationally arranged on the rack, a support is further fixedly arranged on the rack, a supporting plate is fixedly arranged on the support, and a fixing sleeve is fixedly arranged on the supporting plate; the electrode is arranged in the fixing sleeve in a sliding mode, the electrode abuts against the conveying roller shaft, an elastic piece is arranged between the electrode and the supporting plate, and an adjusting mechanism used for adjusting the position of the elastic piece is arranged on the supporting frame; the electrode abuts against the rotating conveying roller shaft so that the conveying roller can be grounded conveniently, the electrode can be automatically corrected after being abraded through the elastic piece, the electrode abuts against the roller shaft, the threaded sleeve can be rotated to drive the moving ring and the end of the spring to move, and therefore stage adjustment is conducted according to the electrode abrasion condition, and the electrode abrasion accuracy is improved. The force applied to the electrode by the spring is always kept within a certain range, and electrode abrasion acceleration caused by overlarge pressure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely relates to a rotating roller contact type grounding device. BACKGROUND

[0002] The welding automatic line is a kind of highly integrated automatic production system, and the automatic operation of welding operation from "workpiece conveying, positioning clamping, welding execution to finished product unloading" whole process is realized through the cooperation of mechanical, electrical, sensing, control and other technologies, without or only needing very little manual intervention, and the core goal is to improve welding efficiency, guarantee weld quality stability, and reduce manual labor intensity and operation risk;

[0003] Roller conveying is one of important conveying modes of welding automatic line, which is composed of multiple parallel arranged metal roller shafts, and the roller shaft synchronous rotation drives workpiece translation;It has the advantages of high conveying efficiency, sustainable conveying, simple structure, low maintenance cost and the like.

[0004] The conveying roller of welding automatic line not only carries out conveying, but also needs to carry out automatic welding on conveying roller sometimes, and static electricity is generated on conveying roller due to friction electrification and induction electrification when conveying roller runs, so that the conveying roller needs to be grounded to solve the problems of static electricity accumulation, stray current interference and equipment safety hazard in welding process, and the grounding device of conveying roller in prior art is usually directly connected with roller shaft, but the position of grounding device contacting with roller shaft is worn due to rotation of roller shaft after long time use, so that grounding device and roller shaft are not in good contact, which leads to grounding function failure or substantial weakening of conveying roller. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rotating roller contact type grounding device to solve the above-mentioned deficiencies in prior art.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a rotating roller contact type grounding device, comprising rack and conveying roller rotatingly arranged on the rack, the rack is further fixedly provided with support, the support is fixedly provided with support plate, and the support plate is fixedly provided with fixed sleeve;Electrode is slidingly arranged in the fixed sleeve, the electrode is in abutment with roller shaft of conveying roller, and elastic member is arranged between the electrode and support plate, and adjusting mechanism for adjusting the position of elastic member is arranged on the support plate;One end of the elastic member is in abutment with the electrode, so that the electrode is in abutment with the roller shaft of conveying roller.

[0007] As a preferred, the support is fixedly provided with bakelite plate, and the support plate is fixedly connected with the bakelite plate.

[0008] As a preferred, the electrode is made of chrome-zirconium-copper material.

[0009] Preferably, a sliding groove is provided on the outer peripheral surface of the fixing sleeve, a slider is slidably provided in the sliding groove, and the slider is threadably connected to the electrode.

[0010] Preferably, a fixing rod is fixedly provided on one side of the electrode close to the support plate, two fasteners are provided on one end of the fixing rod away from the electrode, and two washers are sleeved on the outer circumference of the fixing rod.

[0011] Preferably, a threaded sleeve is threadedly connected to the support plate, an end of the threaded sleeve close to the electrode is threadedly connected to a movable ring, an end of the elastic member away from the electrode abuts against the movable ring, and the threaded sleeve is sleeved on the outer circumference of the fixed rod.

[0012] Preferably, the elastic member is configured as a spring, and a rotating disk is fixedly provided on the threaded sleeve.

[0013] In the above technical solution, the utility model provides a rotating roller contact grounding device, which has the following beneficial effects: the conveyor roller is conveniently grounded by abutting the electrode with the rotating conveyor roller shaft, and the electrode can be automatically corrected after wear through the elastic member so that the electrode abuts the roller shaft. The rotating threaded sleeve can drive the movable ring and the spring end to move, thereby performing staged adjustments according to the electrode wear conditions, so that the force applied by the spring to the electrode is always maintained within a certain range, avoiding accelerated electrode wear due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present utility model;

[0016] Figure 2 A schematic structural diagram of a bakelite board provided in an embodiment of the present utility model;

[0017] Figure 3 A schematic structural diagram of a threaded sleeve provided in an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the structure inside the fixing sleeve provided in an embodiment of the utility model.

[0019] Description of reference numerals:

[0020] 1, rack; 2, conveying roller; 3, support; 4, bakelite plate; 5, support plate; 6, fixed sleeve; 7, sliding groove; 8, electrode; 9, sliding block; 10, fixed rod; 11, spring; 12, moving ring; 13, threaded sleeve; 14, rotating disc; 15, fastener; 16, washer. DETAILED DESCRIPTION

[0021] In order for those skilled in the art to better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings.

[0022] Please refer to Figures 1-4 A rotating roller contact type grounding device, the technical scheme of the utility model discloses a rack 1 and conveying roller 2 rotatingly arranged on the rack 1, the rack 1 is also fixedly provided with a support 3, the support 3 is fixedly provided with a support plate 5, and the support plate 5 is fixedly provided with a fixed sleeve 6; the electrode 8 is slidingly arranged in the fixed sleeve 6, the electrode 8 is in abutment with the roller shaft of the conveying roller 2, and an elastic member is arranged between the electrode 8 and the support plate 5; the support plate 5 is provided with an adjusting mechanism for adjusting the position of the elastic member; one end of the elastic member is in abutment with the electrode 8, so that the electrode 8 is in abutment with the roller shaft of the conveying roller 2; the support 3 is installed on the rack 1 close to the roller shaft of the conveying roller 2 and is used for supporting the support plate 5; the electrode 8 is in abutment with the roller shaft of the conveying roller 2, is guided by the fixed sleeve 6, and is in abutment with the roller shaft of the conveying roller 2 through the elastic member; when the roller shaft of the conveying roller 2 wears the electrode 8 after long-time use, the electrode 8 can still be in abutment with the roller shaft of the conveying roller 2 through the pushing of the elastic member, so that the situation of poor contact is avoided; the adjusting mechanism can adjust the deformation amount of the elastic member when the electrode 8 is in abutment with the roller shaft of the conveying roller 2, so as to control the abutment degree of the electrode 8 and the roller shaft of the conveying roller 2, and further prevent the electrode 8 from being accelerated to wear due to the excessive elastic force of the elastic member.

[0023] Specifically, the support 3 is fixedly provided with a bakelite plate 4, and the support plate 5 is fixedly connected with the bakelite plate 4; the bakelite plate 4 is an artificial synthetic thermosetting composite material with phenolic resin as the core and various fillers, which has excellent insulation, high strength, corrosion resistance, good dimensional stability and is not easy to deform, etc.; the bakelite plate 4 separates the support plate 5 and the support 3, preventing mutual interference of electric current.

[0024] Specifically, the electrode 8 is made of chromium-zirconium-copper material; the chromium-zirconium-copper has excellent wear resistance, high strength, high conductivity, high thermal conductivity and high temperature stability, and can ensure the reliability of the rotating abutment when abutting with the rotating conveying roller 2 in the welding scene, reduce wear and prevent adhesion.

[0025] Specifically, the outer circumferential surface of the fixing sleeve 6 is provided with a sliding groove 7, and a sliding block 9 is slidably arranged in the sliding groove 7, and the sliding block 9 is threadedly connected with the electrode 8; the sliding block 9 is threadedly connected at the top of the electrode 8, and the electrode 8 is limited by the cooperation of the sliding block 9 and the sliding groove 7, so that the electrode 8 is prevented from rotating with the roller shaft of the conveying roller 2, and the threadedly connected sliding block 9 is convenient for installation and disassembly.

[0026] Specifically, the electrode 8 is fixedly provided with a fixing rod 10 on the side close to the support plate 5, two fasteners 15 are arranged at the end of the fixing rod 10 away from the electrode 8, and two washers 16 are arranged on the outer circumferential surface of the fixing rod 10; the fixing rod 10 penetrates through the support plate 5 and is exposed from the side of the support plate 5 away from the electrode 8, the two fasteners 15 are both nuts, the two washers 16 are between the two nuts, the end of the fixing rod 10 away from the electrode 8 is provided with a thread matched with the nut, and the nut close to the electrode 8 is at the end of the thread; at this time, the connector of the grounding wire is placed between the two washers 16 and in contact with the fixing rod 10, the nut is rotated, the two nuts close to the connector of the grounding wire are clamped, the electrode 8 and the fixing rod 10 are both conductive materials, the current on the conveying roller 2 is transmitted to the electrode 8 through the roller shaft, and then transmitted to the grounding wire through the fixing rod 10 to realize the grounding function.

[0027] Specific, the support plate 5 is threadedly connected with a threaded sleeve 13, the threaded sleeve 13 is threadedly connected with a moving ring 12 at one end close to the electrode 8, the elastic member is abutted with the moving ring 12 at the end away from the electrode 8, and the threaded sleeve 13 is sleeved on the outer circumferential surface of the fixed rod 10; the fixed rod 10 can rotate in the threaded sleeve 13 and slide, the threaded groove of the threaded sleeve 13 is formed on the outer circumferential surface, the moving ring 12 is between the electrode 8 and the support plate 5, and the roller shaft of the conveying roller 2 is abutted with the electrode 8 when rotating; in order to ensure that the electrode 8 is still abutted with the roller shaft after being worn, a relatively large pressure needs to be applied to the electrode 8 by the elastic member, but the relatively large pressure applied will cause the electrode 8 to be too tightly abutted with the roller shaft and accelerate the wear of the electrode 8; in use, the threaded sleeve 13 is rotated to drive the moving ring 12 to move between the electrode 8 and the support plate 5, so that the deformation amount of the elastic member is adjusted, and then the moving ring 12 can be moved in stages according to the wear condition, so that the pressure applied to the electrode 8 by the elastic member is kept within a certain range, the pressure applied to the electrode 8 by the elastic member is prevented from being too large to accelerate the wear of the electrode 8, the moving ring 12 and the threaded sleeve 13 are threadedly connected, so that the moving ring 12 can be conveniently installed and dismounted through the support plate 5, the support plate 5 and the moving ring 12 are both provided with threaded grooves matched with the threaded sleeve 13, the threaded groove on the moving ring 12 does not penetrate the moving ring 12, the threaded grooves on the support plate 5 and the moving ring 12 are opposite in screw direction, the threaded sleeve 13 is screwed into the top of the threaded groove of the moving ring 12 when being installed, in the initial state, the moving ring 12 is abutted with the support plate 5, when the threaded sleeve 13 is rotated to push the moving ring 12 towards the electrode 8, the rotating direction of the threaded sleeve 13 will make the threaded connection between the moving ring 12 and the threaded sleeve 13 more firm, so that the moving ring 12 will not be loosened with the rotation of the threaded sleeve 13, and the stability of the connection between the moving ring 12 and the threaded sleeve 13 is kept.

[0028] Specific, the elastic member is a spring 11, and a rotating disc 14 is fixedly arranged on the threaded sleeve 13; one end of the spring 11 is fixedly connected with the electrode 8, and the other end is abutted with the moving ring 12; the spring 11 can make the electrode 8 abutted with the roller shaft, so that the conveying roller 2 is conveniently grounded in the case of the rotation of the roller shaft, and the automatic compensation is conducted after the wear of the electrode 8, so that the electrode 8 is always abutted with the roller shaft; the rotating disc 14 is fixedly arranged at the end of the threaded sleeve 13 away from the moving ring 12, and an anti-skid groove 7 is formed in the outer circumferential surface of the rotating disc 14, so that the threaded sleeve 13 is conveniently rotated through the rotating disc 14.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary roller contact grounding device comprising a frame (1) and a conveyor roller (2) arranged to rotate in the frame (1), characterized in that The rack (1) is further provided with a support (3), the support (3) is fixedly provided with a support plate (5), and the support plate (5) is fixedly provided with a fixed sleeve (6); An electrode (8) is slidingly arranged in the fixed sleeve (6), the electrode (8) is in abutment with the roller shaft of the conveying roller (2), an elastic member is arranged between the electrode (8) and the support plate (5), and the support plate (5) is provided with an adjusting mechanism for adjusting the position of the elastic member; One end of the elastic member is in abutment with the electrode (8) to make the electrode (8) in abutment with the roller shaft of the conveying roller (2).

2. A rotary roller contact earthing device according to claim 1, wherein, The support (3) is fixedly provided with a bakelite plate (4), and the support plate (5) is fixedly connected with the bakelite plate (4).

3. A rotary roller contact earthing device according to claim 1, wherein, The electrode (8) is made of chromium-zirconium-copper material.

4. A rotary roller contact grounding device according to claim 1, wherein A sliding groove (7) is formed in the outer circumferential surface of the fixed sleeve (6), a sliding block (9) is slidingly arranged in the sliding groove (7), and the sliding block (9) is threadedly connected with the electrode (8).

5. A rotary roller contact grounding device according to claim 1, wherein A fixed rod (10) is fixedly arranged on one side of the electrode (8) close to the support plate (5), two fasteners (15) are arranged at the end of the fixed rod (10) away from the electrode (8), and two gaskets (16) are sleeved on the outer circumferential surface of the fixed rod (10).

6. A rotary roller contact grounding device according to claim 1, wherein A threaded sleeve (13) is threadedly connected with the support plate (5), a moving ring (12) is threadedly connected with one end of the threaded sleeve (13) close to the electrode (8), one end of the elastic member away from the electrode (8) is in abutment with the moving ring (12), and the threaded sleeve (13) is sleeved on the outer circumferential surface of the fixed rod (10).

7. A rotary roller contact earthing device according to claim 6, wherein, The elastic member is a spring (11), and a rotating disc (14) is fixedly arranged on the threaded sleeve (13).

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