CN216576248U

CN216576248U - Roll shaft surfacing device

Info

Publication number: CN216576248U
Application number: CN202122589947.9U
Authority: CN
Inventors: 路广; 闫海军; 赵海员; 王盼合; 白金锋; 陈旭; 鞠庆红; 王永刚; 毛树会; 董文辉; 纪广兴; 祝丽宝; 高光泽; 顾永利
Original assignee: Hebei Jinxi Iron And Steel Group Heavy Industry Technology Co ltd
Current assignee: Hebei Jinxi Iron And Steel Group Heavy Industry Technology Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-24
Anticipated expiration: 2031-10-26

Abstract

The utility model provides a roll shaft overlaying device which comprises a driving unit and a supporting unit, wherein the driving unit is used for fixing a roll shaft and driving the roll shaft to rotate by taking a first axis as a rotating shaft; the support unit is slidable along a first path, the first path being parallel to the first axis, the support unit being for fixing a welding gun. The utility model provides a roller shaft surfacing device, aiming at improving surfacing efficiency and forming a uniform welding layer on the surface of a roller shaft.

Description

Roll shaft surfacing device

Technical Field

The utility model belongs to the technical field of welding equipment, and particularly relates to a roll shaft overlaying device.

Background

The roller can cause surperficial wearing layer wearing and tearing after long-time the use, influences the normal use of roller, reduces the life of roller. Therefore, the outer surface of the roll shaft needs to be subjected to surfacing welding, so that a wear-resistant welding layer is formed on the surface of the roll shaft again, and the service life of the roll shaft is prolonged. Adopt manual welded mode to weld the roller surface among the prior art usually, even fix the roller with the frock, then manual hand-held welding handle carries out welding operation on the roller surface, need constantly overturn the roller simultaneously in welding process to make roller surface form even welding layer. However, this method requires many people to perform operations such as turning and welding on the roll shaft simultaneously, which is inefficient and tends to cause uneven welding layer on the surface of the roll shaft during welding.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a roller shaft overlaying device, aiming at improving overlaying efficiency and enabling the surface of a roller shaft to form a uniform welding layer.

In order to achieve the purpose, the utility model adopts the technical scheme that: provided is a roll build-up welding device including:

the driving unit is used for fixing the roller shaft and driving the roller shaft to rotate by taking the first axis as a rotating shaft; and

a support unit slidable along a first path parallel to the first axis, the support unit for securing a welding gun.

In one possible implementation, the supporting unit includes:

the supporting platform is provided with a slide way;

the bracket is connected to the slideway in a sliding manner along the first path and used for fixing the welding gun; and

the first driver is arranged on the supporting platform and connected with the support, and the first driver is used for driving the support to slide along a first path.

In one possible implementation, the bracket includes:

the base is connected with the slide way in a sliding manner and is connected with the driving end of the first driver; and

the clamp is arranged on the base and used for clamping the welding gun.

In one possible implementation, the clamp includes:

the connecting seat is connected with the base;

the two clamping arms are respectively and rotatably connected to the connecting seat and are oppositely arranged; and

the two ends of the telescopic mechanism are respectively connected with the two clamping arms, and the telescopic mechanism is used for enabling the two clamping arms to keep a clamping state.

In one possible implementation, the telescopic mechanism is an elastic member configured with a pre-tightening force for holding the two clamp arms in a clamped state.

In a possible implementation manner, the telescopic mechanism is a telescopic cylinder, and a fixed end and a driving end of the telescopic cylinder are respectively and rotationally connected with the two clamping arms to drive the two clamping arms to open and close.

In a possible implementation manner, the driving unit comprises a driving assembly and a driven assembly which are arranged at intervals, the driving assembly and the driven assembly are arranged in parallel, the driving assembly and the driven assembly can respectively provide bearing force for the roller shafts, and the driving assembly can rotate around the first axis.

In a possible implementation manner, the driving assembly includes a first frame, a driving idler rotatably connected to the first frame, and a second driver provided in the first frame, and the second driver is configured to drive the driving idler to rotate around the first axis.

In one possible implementation, the driven assembly includes a second frame and a driven idler rotatably connected to the second frame, the driven idler being rotatable about an axis parallel to the first axis.

In a possible implementation manner, the driving unit further includes a workbench, and the second frame is slidably disposed on the workbench along a second path, where the second path is perpendicular to the first axis.

The roll shaft surfacing device provided by the utility model has the beneficial effects that: compared with the prior art, the roll shaft surfacing device has the advantages that the roll shaft is fixed on the driving unit, the welding gun is fixed on the supporting unit, the welding end of the welding gun is in contact with the surface of the roll shaft, the welding gun welds the roll shaft, and the driving unit drives the roll shaft to rotate, so that the welding layer is formed in the circumferential direction of the roll shaft. The supporting unit drives the welding gun to slide along the first path, so that the welding gun welds the roller shaft in the axial direction, and meanwhile, the roller shaft rotates to complete the welding of the outer peripheral surface of the roller shaft. When the welding gun is used, the roll shaft does not need to be turned over in a reciprocating mode, the drive unit drives the roll shaft to rotate, and the support unit drives the welding gun to move, so that the welding gun can stably weld the roll shaft when in work, a uniform welding layer is formed on the surface of the roll shaft, and the work efficiency is improved. The welding gun avoids uneven welding layer on the surface of the roller shaft caused by manual handheld welding gun operation, and also avoids low working efficiency caused by overturning the roller shaft.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a roller surfacing device according to a first embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a left side cross-sectional view of a support unit used in one embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a bracket used in the second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a driving unit according to a third embodiment of the present invention;

fig. 6 is a schematic structural diagram of the first clamping mechanism or the second clamping mechanism according to the fourth embodiment of the present invention.

In the figure: 1. a first frame; 2. a driving carrier roller; 3. a roll shaft; 4. a second frame; 5. a driven carrier roller; 6. a welding gun; 7. a support table; 701. a slideway; 8. a support; 801. clamping arms; 802. a connecting seat; 803. an elastic member; 804. a base; 805. a telescopic cylinder; 9. a motor; 10. a support bracket; 11. an operation table; 12. a first link frame; 13. a first clamping mechanism; 1301. a clamping plate; 1301-1, mounting holes; 1301-2, a chute; 1302. a drive plate; 1302-1, a first tooth; 1302-2, a guide groove; 1303. a drive block; 1303-1, a second tooth; 1304. a locking block; 14. a second clamping mechanism; 15. a second link frame; 16. a first driver; 17. and a third driver.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 and 2 together, a roll build-up welding apparatus according to the present invention will now be described. The roll shaft surfacing device comprises a driving unit and a supporting unit, wherein the driving unit is used for fixing the roll shaft 3 and driving the roll shaft 3 to rotate by taking a first axis as a rotating shaft; the support unit is slidable along a first path, parallel to the first axis, for fixing the welding torch 6.

Compared with the prior art, the roll shaft surfacing device provided by the utility model has the advantages that the roll shaft 3 is fixed on the driving unit, the welding gun 6 is fixed on the supporting unit, the welding end of the welding gun 6 is adjusted to be in contact with the surface of the roll shaft 3, the welding gun 6 welds the roll shaft 3, and the driving unit drives the roll shaft 3 to rotate, so that a welding layer is formed in the circumferential direction of the roll shaft 3. The supporting unit drives the welding gun 6 to slide along the first path, so that the welding gun 6 welds the roller shaft 3 in the axial direction, and meanwhile, the roller shaft 3 rotates to complete the welding of the whole peripheral surface of the roller shaft 3. When the welding device is used, the roll shaft 3 does not need to be overturned in a reciprocating mode, the roll shaft 3 is driven to rotate through the driving unit, the welding gun 6 is driven to move through the supporting unit, the welding gun 6 can be ensured to weld the roll shaft 3 stably during work, a uniform welding layer is formed on the surface of the roll shaft 3, and the work efficiency is improved. The welding gun avoids uneven welding layers on the surface of the roller shaft 3 caused by manual operation of the welding gun 6, and also avoids low working efficiency caused by overturning the roller shaft 3.

In some embodiments, referring to fig. 1 to 3, the supporting unit includes a supporting platform 7, a bracket 8 and a first driver 16, wherein a slide 701 is disposed on the supporting platform 7; the bracket 8 is connected to the slideway 701 along a first path in a sliding manner, and the bracket 8 is used for fixing the welding gun 6; the first driver 16 is disposed on the supporting platform 7 and connected to the bracket 8, and the first driver 16 is used for driving the bracket 8 to slide along the first path.

In this embodiment, the support 8 is driven by the first driver 16 to slide along the first path on the support table 7, so that the welding gun 6 can slide along with the support 8 at a constant speed, thereby ensuring that an even welding layer is formed on the surface of the roller shaft 3, and avoiding the phenomenon that the manual pushing of the support 8 causes the inconsistency of the direct sliding speed and the uneven thickness of the welding layer. Meanwhile, the structure realizes automatic production and improves the working efficiency.

Optionally, the first actuator 16 is a pneumatic cylinder or lead screw.

Optionally, the support table 7 includes a platen and a leg, the leg is extendable and retractable in an up-down direction, and a height of the leg is adjusted according to a position of the roller shaft 3, so that the welding end of the welding gun 6 can contact with an outer surface of the roller shaft 3.

In some embodiments, referring to fig. 3-4, the support 8 includes a base 804 and a clamp, the base 804 is slidably connected to the slide 701 and connected to the driving end of the first driver 16; the clamp is arranged on the base 804 and used for clamping the welding gun 6.

The first driver 16 drives the base 804 to slide along the first path in the slide 701, and the clamp is connected with the base 804 and fixes the welding gun 6, so that the welding gun 6 can slide with the clamp at a constant speed in the slide 701. The holder 8 provided in this embodiment has a simple structure, and can ensure stable movement of the welding torch 6 to form a uniform welding layer on the surface of the roller shaft 3.

In some embodiments, referring to fig. 3 and 4, the clamp includes a connecting seat 802, two clamping arms 801 and a telescopic mechanism, wherein the connecting seat 802 is connected with a base 804; the two clamping arms 801 are respectively connected to the connecting seat 802 in a rotating manner, and the two clamping arms 801 are arranged oppositely; two ends of the telescopic mechanism are respectively connected with the two clamping arms 801, and the telescopic mechanism is used for keeping the two clamping arms 801 in a clamping state.

The telescopic mechanism enables the two clamping arms 801 to keep a clamping state on the welding gun 6, and ensures the stability of the welding gun 6 in the working process. After welding, the telescopic mechanism can be stretched to enable the two clamping arms 801 to rotate to be separated from the welding gun 6, and the welding gun 6 is taken out. Clamping arm 801 in this embodiment clamps welding gun 6 under telescopic machanism's effect, simple structure, stability is good.

Optionally, a rubber layer is arranged on the clamping surface of the clamping arm 801, so that the contact area between the clamping arm and the welding gun 6 is increased, and the stability of clamping the welding gun 6 is improved.

In some embodiments, referring to fig. 3, the telescopic mechanism is an elastic member 803, and the elastic member 803 is configured with a pre-tightening force for holding the two clamping arms 801 in a clamping state.

The elastic member 803 allows the two grip arms 801 to grip the welding torch 6, and the welding torch 6 can be taken out by rotating the two grip arms 801 to place the elastic member 803 in a stretched state. The structure is simple, the dead weight is light, and the clamping of the clamp on the welding gun 6 is not influenced.

Optionally, the elastic member 803 is a spring.

In some embodiments, referring to fig. 4, the telescopic mechanism is a telescopic cylinder 805, and a fixed end and a driving end of the telescopic cylinder 805 are respectively rotatably connected to the two clamping arms 801 to drive the two clamping arms 801 to open and close.

The two clamping arms 801 are driven to open and close through the telescopic cylinder 805, so that clamping or separation of the welding gun 6 is completed, automatic production is realized, and working efficiency is improved. The telescopic cylinder 805 enables the two clamping arms 801 to be rigidly connected, and stability is higher.

In some embodiments, referring to fig. 1 to 2, the driving unit includes a driving assembly and a driven assembly which are spaced apart from each other and arranged in parallel, the driving assembly and the driven assembly can respectively provide a bearing force for the roller shaft 3, and the driving assembly can rotate around the first axis.

Place roller 3 on drive assembly and driven subassembly, the outer peripheral face and the drive assembly of roller 3 and driven subassembly contact, drive assembly rotates, makes roller 3 rotatory under the effect of frictional force, and the frictional force drive driven subassembly between roller 3 and the driven subassembly rotates. This structure can be applicable to the diameter and at the roller 3 of predetermineeing the within range, has enlarged application scope, can carry out comprehensive welding to the outer peripheral face of roller 3, does not have the centre gripping dead angle, has increased the area of contact with roller 3 moreover, makes roller 3 more have stability at the rotation in-process.

In some embodiments, referring to fig. 1 to 2, the driving assembly includes a first frame 1, a driving roller 2 rotatably connected to the first frame 1, and a second driver disposed on the first frame 1, and the second driver is configured to drive the driving roller 2 to rotate around a first axis.

The second driver drives the driving carrier roller 2 to rotate around the first axis, and the driving carrier roller 2 enables the roller shaft 3 to rotate around an axis parallel to the first axis through friction force, so that a welding layer is welded on the outer peripheral surface of the roller shaft 3 by the welding gun 6.

Optionally, the second driver includes a motor 9 and a speed reducer, the speed reducer is connected with the driving carrier roller 2, and the motor 9 drives the speed reducer to rotate.

In some embodiments, referring to fig. 1 to 2, the driven assembly includes a second frame 4 and a driven idler 5 rotatably connected to the second frame 4, the driven idler 5 being capable of rotating about an axis parallel to the first axis.

The roller shaft 3 rotates under the action of the driving carrier roller 2, the roller shaft 3 generates friction force with the driven carrier roller 5 when rotating, so that the driven carrier roller 5 rotates, the driven carrier roller 5 and the driving carrier roller 2 are matched to provide bearing force for two sides of the roller shaft 3, and the stability of the roller shaft 3 during operation is ensured.

Alternatively, the driving idler 2 and the driven idler 5 can be completely contacted with the roll shaft 3 in the axial direction, or can be contacted with one end of the roll shaft 3, a bearing bracket 10 is arranged at the other end of the roll shaft 3 to support the roll shaft 3,

in some embodiments, not shown in the figures, the drive unit further comprises a table on which the second frame 4 is slidingly arranged along a second path, perpendicular to the first axis.

When carrying out the operation to the roller 3 of different diameters, need adjust the interval between 2 and the driven bearing roller 5 of initiative bearing roller to provide the bearing to roller 3. And adjusting the second frame 4 to slide on the workbench along a second path, so as to adjust the distance between the driving carrier roller 2 and the driven carrier roller 5, and enable the roller shaft 3 to be placed on the driving carrier roller 2 and the driven carrier roller 5. This structure can be applicable to not unidimensional roller 3, has enlarged application range, need not to set up corresponding driven bearing roller 5 to different roller 3, has reduced manufacturing cost.

In some embodiments, referring to fig. 5, the driving unit includes an operation table 11, a third driver 17, a first clamping assembly and a second clamping assembly; the first clamping assembly is arranged on the operating table 11 in a sliding manner; the second clamping assembly is arranged on the operating table 11 in a sliding manner, and the first clamping assembly and the second clamping assembly slide to be close to or far away from each other;

the first clamping assembly comprises a first connecting frame 12 and a first clamping mechanism 13, and the first connecting frame 12 is arranged on the operating platform 11 in a sliding mode; the first clamping mechanism 13 is connected with the first connecting frame 12 and used for clamping a first pipe fitting to be welded and enabling the first pipe fitting to be welded to rotate;

the second clamping assembly comprises a second connecting frame 15 and a second clamping mechanism 14, the second connecting frame 15 is arranged on the operating platform 11 in a sliding mode and is located on the same sliding path as the first connecting frame 12; the second clamping mechanism 14 is connected with the second connecting frame 15 and used for clamping a second pipe fitting to be welded and enabling the second pipe fitting to be welded to rotate;

the third driver 17 is connected to the first clamping mechanism 13 or the second clamping mechanism 14 to drive the first clamping mechanism 13 or the second clamping mechanism 14 to rotate around the first axis.

The distance between the first connecting frame 12 and the second connecting frame 15 is adjusted according to the length of the roll shaft 3, and the first clamping mechanism 13 and the second clamping mechanism 14 respectively clamp two ends of the roll shaft 3. The third driver 17 drives the first clamping mechanism 13 or the second clamping mechanism 14 to enable the roll shaft 3 to rotate, so that the welding gun 6 can weld the roll shaft 3 in the circumferential direction without manually rotating the roll shaft 3, and the working efficiency is improved. Meanwhile, the distance between the first clamping mechanism 13 and the second clamping mechanism 14 is adjustable, and the device is suitable for roll shafts 3 with different lengths and has universality.

Specifically, the first gripper mechanism 13 and the second gripper mechanism 14 are each a bearing member, an outer ring of which is connected to the first connecting frame 12 or the second connecting frame 15, and an inner ring of which is used for connection with the roller shaft 3.

In some embodiments, referring to fig. 6, each of the first clamping mechanism 13 and the second clamping mechanism 14 includes a clamping disk 1301, a driving disk 1302, a locking block 1304, and a driving block 1303, the clamping disk 1301 is rotatably connected to the first connecting frame 12 or the second connecting frame 15, the clamping disk 1301 is an annular hollow structure having a mounting hole 1301-1 in the middle, the mounting hole 1301-1 is used for accommodating a first pipe fitting to be welded or a second pipe fitting to be welded, a plurality of sliding grooves 1301-2 are radially disposed on the clamping disk 1301, and the sliding grooves 1301-2 are communicated with the mounting hole 1301-1; the driving disc 1302 is coaxially and rotatably arranged in the clamping disc 1301, a spiral guide groove 1302-2 is formed in the driving disc 1302, and first teeth 1302-1 are arranged on the outer edge of the driving disc 1302; the locking blocks 1304 are arranged in the sliding grooves 1301-2 in a sliding mode, racks meshed with the guide grooves 1302-2 are arranged on the locking blocks 1304, and the locking blocks 1304 are used for clamping a first pipe fitting to be welded or a second pipe fitting to be welded; the driving block 1303 is provided with a second tooth 1303-1 engaged with the first tooth 1302-1, and the free end of the driving block 1303 extends out of the clamping disc 1301, and the driving block 1303 is used for driving the driving disc 1302 to rotate.

The two ends of the roller shaft 3 are respectively inserted into the corresponding mounting holes 1301-1, the driving block 1303 is rotated, the driving disc 1302 is rotated under the action of the first tooth 1302-1 and the second tooth 1303-1, the spiral guide groove 1302-2 on the driving disc 1302 is rotated, the rack meshed with the guide groove 1302-2 slides along the sliding groove 1301-2, the locking block 1304 is close to the mounting holes 1301-1, and the locking blocks 1304 are matched to clamp the roller shaft 3. This structure is applicable to the roller 3 of different diameters, need not to change first anchor clamps and second anchor clamps, has saved the cost.

Preferably, the driving block 1303 is provided with a slot, and the driving block 1303 is rotated by inserting a tool into the slot.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Roll build-up welding device, its characterized in that includes:

2. The roll buildup welding apparatus according to claim 1, wherein the support unit includes:

the supporting platform is provided with a slide way;

3. A roller overlay welding apparatus according to claim 2 wherein the support comprises:

the clamp is arranged on the base and used for clamping the welding gun.

4. A roller overlaying device according to claim 3, wherein said fixture comprises:

the connecting seat is connected with the base;

5. A roller overlaying device according to claim 4, wherein said telescoping mechanism is an elastic member configured with a pre-load force to maintain the two clamping arms in a clamped condition.

6. The roll surfacing apparatus according to claim 4, wherein the telescopic mechanism is a telescopic cylinder, and a fixed end and a driving end of the telescopic cylinder are respectively rotatably connected to the two clamping arms to drive the two clamping arms to open and close.

7. The roll buildup welding apparatus of claim 1, wherein said drive unit includes spaced apart drive and driven assemblies, said drive and driven assemblies being disposed parallel to each other, said drive and driven assemblies being capable of providing respective bearing forces to the roll shafts, said drive assembly being capable of rotating about said first axis.

8. The roller hardfacing apparatus of claim 7, wherein the drive assembly includes a first frame, a drive idler rotatably coupled to the first frame, and a second drive disposed on the first frame for driving the drive idler in rotation about the first axis.

9. The roller hardfacing apparatus of claim 8, wherein the driven assembly includes a second frame and a driven idler rotatably connected to the second frame, the driven idler being rotatable about an axis parallel to the first axis.

10. The roller hardfacing apparatus of claim 9, wherein the drive unit further comprises a table, the second frame slidably disposed on the table along a second path, the second path perpendicular to the first axis.