CN110899891B

CN110899891B - High-precision brazing equipment

Info

Publication number: CN110899891B
Application number: CN201911266837.XA
Authority: CN
Inventors: 王建将; 黄择锋; 黄林书
Original assignee: Fujian Yuansheng Automobile Parts Technology Co ltd
Current assignee: Fujian Yuansheng Automobile Parts Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2021-06-08
Anticipated expiration: 2039-12-11
Also published as: CN110899891A

Abstract

The invention discloses high-precision brazing equipment which comprises a workbench, an upright post fixed on the workbench, a mounting piece fixed on the upright post, a suite movably connected to the mounting piece, a push-pull mechanism arranged on the mounting piece and used for driving the suite to swing, a telescopic piece sleeved at the lower end of the suite and used for mounting a welding rod, and a rotating mechanism connected with the push-pull mechanism and used for driving the telescopic piece to stretch when the suite swings, wherein the upright post is fixed on the workbench; the device drives the threaded sleeve to transversely travel by utilizing the lead screw, and further drives the bedplate, the sleeve and the telescopic piece sleeved in the sleeve to swing by virtue of the connecting rod, so that swinging type linear welding is realized, and a welding seam is linearly and orderly scribed; the lead screw drives the worm to rotate while swinging, the worm drives the worm wheel and the swinging gear to rotate, the spur rack and the telescopic piece are driven by the gear to extend while swinging, the welding rod is ensured to be attached to the surface of a workpiece, and the automatic feeding function is realized.

Description

High-precision brazing equipment

Technical Field

The invention relates to the field of machining, in particular to high-precision brazing equipment.

Background

Brazing refers to a welding method in which brazing filler metal lower than the melting point of a weldment and the weldment are heated to the melting temperature of the brazing filler metal at the same time, and then the liquid brazing filler metal is used for filling gaps of solid workpieces to connect metals.

The present welding of different materials among partial copper plate, aluminum plate and iron plate in automobile manufacture mostly adopts brazing, and the welding has the advantages of smooth joint surface, good air tightness, stable shape and size, little change of the structure and performance of the welding parts, and capability of connecting the same or different metals and partial non-metals.

However, most of the existing brazing methods are welding seams by manually holding a welding gun, and particularly when the plates are welded in a straight line, the welds are bent due to shaking of manual welding, and the accuracy is not high.

Disclosure of Invention

Based on the defects in the prior art mentioned in the background art, the invention provides high-precision brazing equipment.

The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:

a high-precision brazing device comprises a workbench, a stand column fixed on the workbench, a mounting piece fixed on the stand column, a sleeve movably connected to the mounting piece, a push-pull mechanism arranged on the mounting piece and used for driving the swinging of the sleeve, a telescopic piece sleeved at the lower end of the sleeve and used for mounting welding rods, and a rotating mechanism connected with the push-pull mechanism and used for driving the telescopic piece to stretch when the sleeve swings.

As a further scheme of the invention: the push-pull mechanism comprises a servo motor arranged on the upper part of the upright post, a lead screw arranged on the mounting piece through a bearing and penetrating through the upright post to be connected with the output end of the servo motor, a threaded sleeve in threaded connection with the lead screw, and a servo motor signal is connected with a control switch.

As a still further scheme of the invention: the upper part of the external member is fixedly provided with a bedplate which is connected with the threaded sleeve through a connecting rod, wherein one end of the connecting rod is rotatably connected on the threaded sleeve, the other end of the connecting rod is rotatably connected on the bedplate, and the external member is rotatably connected on the mounting member through a swing arm.

As a still further scheme of the invention: the rotating mechanism comprises a worm connected with the lead screw, a worm wheel meshed with the worm and rotatably arranged on the mounting piece, and a driving assembly connected with the worm wheel and used for driving the telescopic piece to stretch, wherein the connection position of the worm wheel and the mounting piece is overlapped with the connection position of the swing arm and the mounting piece.

As a still further scheme of the invention: the screw rod is connected with the worm through a first transmission piece, and the driving assembly comprises a gear rotatably arranged on the platen, a second transmission piece used for connecting the gear with the worm wheel, and a spur rack fixed on the upper wall of the telescopic piece and meshed with the gear.

As a still further scheme of the invention: the welding rod fixing part for fixing the welding rod is installed at the lower end of the telescopic piece, and a hexagonal bolt for clamping the welding rod is connected to the side wall of the welding rod fixing part in a threaded mode.

As a still further scheme of the invention: the stand passes through the strengthening rib and connects the workstation, the below both sides of workstation all are provided with the base that is used for increasing frictional force.

After adopting the structure, compared with the prior art, the invention has the following advantages: the device utilizes the lead screw to drive the transverse walking of thread bush and then drives platen and external member and registrate the extensible member swing in the external member with the help of the connecting rod, realize oscillating straight line welding, the welding seam is the straight line and neatly draws one, the precision is high, the welding seam distortion phenomenon that the manual welding shake caused can not appear, and drive the worm through the lead screw and rotate in the wobbling, worm drive worm wheel and wobbling gear revolve, gear drive spur rack and extensible member extend in the wobbling while, guarantee welding rod laminating work piece surface, automatic feeding function has, degree of automation is high.

Drawings

FIG. 1 is a schematic structural view of a high-precision brazing apparatus.

Fig. 2 is a schematic structural diagram of the high-precision brazing equipment at the stroke end.

FIG. 3 is a schematic view showing the structure of a welding wire fixing member in the high-precision brazing apparatus.

In the figure: 1-a workbench; 2-upright post; 3-a servo motor; 4-a lead screw; 5-thread bushing; 6-mounting parts; 7-a connecting rod; 8-a bedplate; 9-a kit; 10-swing arm; 11-a telescopic member; 12-a first transmission member; 13-a worm; 14-a worm gear; 15-a second transmission member; 16-gear; 17-straight rack; 18-electrode holder; 19-reinforcing ribs; 20-base.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Referring to fig. 1 and 2, in an embodiment of the present invention, a high-precision brazing apparatus includes a workbench 1, a column 2 fixed on the workbench 1, a mounting member 6 fixed on the column 2, a sleeve 9 movably connected to the mounting member 6, a push-pull mechanism arranged on the mounting member 6 and used for driving the sleeve 9 to swing, a telescopic member 11 sleeved at a lower end of the sleeve 9 and used for mounting a welding rod, and a rotating mechanism connected to the push-pull mechanism and used for driving the telescopic member 11 to stretch and retract when the sleeve 9 swings;

specifically, when the push-pull mechanism drives the external member 9 to rotate anticlockwise, the push-pull mechanism drives the rotating mechanism to operate, and the rotating mechanism drives the telescopic member 11 to extend downwards, so that the welding rod is extended, the welding rod can swing and automatically extend at the same time, wherein the operation path is a straight line, and the accuracy of the welding line is ensured.

In an embodiment of the invention, the push-pull mechanism comprises a servo motor 3 mounted on the upper part of the upright post 2, a lead screw 4 mounted on the mounting part 6 through a bearing and connected with the output end of the servo motor 3 through the upright post 2, and a threaded sleeve 5 in threaded connection with the lead screw 4, wherein the servo motor 3 is in signal connection with a control switch, when the control switch is pressed in the forward direction, the servo motor 3 is connected with a power supply to drive the lead screw 4 to rotate in the forward direction, and similarly, when the control switch is pressed in the reverse direction, the servo motor 3 drives the lead screw 4 to rotate in the reverse direction.

In another embodiment of the present invention, a platen 8 is fixed on the upper portion of the sleeve 9, the platen 8 is connected to the threaded sleeve 5 through a connecting rod 7, wherein one end of the connecting rod 7 is rotatably connected to the threaded sleeve 5, the other end of the connecting rod 7 is rotatably connected to the platen 8, the sleeve 9 is rotatably connected to the mounting member 6 through a swing arm 10, and when the screw rod 4 rotates in the forward direction, the threaded sleeve 5 is driven to move away from the servo motor 3, so that the platen 8 and the sleeve 9 are pushed by the connecting rod 7 to swing around the connection between the swing arm 10 and the mounting member 6.

In another embodiment of the present invention, the rotating mechanism includes a worm 13 connected to the lead screw 4, a worm wheel 14 engaged with the worm 13 and rotatably disposed on the mounting member 6, and a driving assembly connected to the worm wheel 14 for driving the telescopic member 11 to extend and retract, wherein a connection between the worm wheel 14 and the mounting member 6 overlaps with a connection between the swing arm 10 and the mounting member 6, the worm 13 is driven to rotate by the rotating lead screw 4, the worm 13 drives the worm wheel 14 to rotate, and the worm wheel 14 drives the driving assembly to drive the telescopic member 11 to extend and retract;

when the screw rod 4 rotates forwards, the worm 13 is driven to rotate forwards, the worm 13 drives the worm wheel 14 to rotate forwards, and then the driving assembly is driven to drive the telescopic piece 11 to move downwards along the sleeve 9, and similarly, when the screw rod 4 rotates backwards, the worm 13 is driven to rotate backwards, the worm 13 drives the worm wheel 14 to rotate backwards, and then the driving assembly is driven to drive the telescopic piece 11 to move upwards along the sleeve 9.

In a further embodiment of the present invention, the lead screw 4 is connected with the worm 13 through a first transmission member 12, and the driving assembly comprises a gear 16 rotatably disposed on the platen 8, a second transmission member 15 for connecting the gear 16 with the worm wheel 14, and a spur rack 17 fixed on the upper wall of the telescopic member 11 and engaged with the gear 16;

when the worm wheel 14 rotates forwards, the second transmission piece 15 drives the gear 16 to rotate forwards, the gear 16 drives the spur rack 17 and the telescopic piece 11 to slide downwards along the sleeve, when the worm wheel 14 rotates backwards, the second transmission piece 15 drives the gear 16 to rotate backwards, and the gear 16 drives the spur rack 17 and the telescopic piece 11 to slide upwards along the sleeve 9.

In another embodiment of the present invention, referring to fig. 3, a welding rod fixing member 18 for fixing a welding rod is installed at a lower end of the telescopic member 11, a hexagonal bolt for clamping the welding rod is connected to a side wall of the welding rod fixing member 18 by a thread, and the welding rod is assembled and disassembled by tightening and loosening the hexagonal bolt, so that the welding rod is convenient to replace.

In another embodiment of the present invention, the column 2 is connected to the workbench 1 through a reinforcing rib 19, and the bases 20 for increasing friction force are disposed on both sides of the lower portion of the workbench 1, so that the supporting strength of the column 2 is improved through the reinforcing rib 19, and the column 2 is prevented from being fatigue-bent.

The device utilizes lead screw 4 to drive 5 horizontal walks of thread bush and then drives 8 and 9 and the flexible 11 swing of registrate in external member 9 with the help of connecting rod 7, realize oscillating straight line welding, the welding seam is the straight line neatly to draw one, the precision is high, the welding seam distortion phenomenon that manual welding shake caused can not appear, and drive worm 13 through lead screw 4 and rotate in the wobbling, worm 13 drive worm wheel and wobbling gear 16 rotate, gear 16 drives spur rack and flexible 11 and extends in the wobbling while, guarantee welding rod laminating work piece surface, automatic feeding function has, degree of automation is high.

The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Claims

1. The high-precision brazing equipment is characterized by comprising a workbench (1), a stand column (2) fixed on the workbench (1), a mounting piece (6) fixed on the stand column (2), a sleeve piece (9) movably connected to the mounting piece (6), a push-pull mechanism arranged on the mounting piece (6) and used for driving the sleeve piece (9) to swing, a telescopic piece (11) sleeved at the lower end of the sleeve piece (9) and used for mounting a welding rod, and a rotating mechanism connected with the push-pull mechanism and used for driving the telescopic piece (11) to stretch when the sleeve piece (9) swings; the push-pull mechanism comprises a servo motor (3) arranged on the upper part of the upright post (2), a lead screw (4) which is arranged on the mounting part (6) through a bearing and penetrates through the upright post (2) to be connected with the output end of the servo motor (3), and a threaded sleeve (5) which is in threaded connection with the lead screw (4), wherein the servo motor (3) is in signal connection with a control switch;

a bedplate (8) is fixed at the upper part of the sleeve (9), the bedplate (8) is connected with the threaded sleeve (5) through a connecting rod (7), one end of the connecting rod (7) is rotatably connected to the threaded sleeve (5), the other end of the connecting rod is rotatably connected to the bedplate (8), and the sleeve (9) is rotatably connected to the mounting part (6) through a swing arm (10);

the rotating mechanism comprises a worm (13) connected with the lead screw (4), a worm wheel (14) meshed with the worm (13) and rotatably arranged on the mounting piece (6), and a driving assembly connected with the worm wheel (14) and used for driving the telescopic piece (11) to stretch, wherein the connection position of the worm wheel (14) and the mounting piece (6) is overlapped with the connection position of the swing arm (10) and the mounting piece (6);

the screw rod (4) is connected with the worm (13) through a first transmission piece (12), and the driving assembly comprises a gear (16) rotatably arranged on the bedplate (8), a second transmission piece (15) used for connecting the gear (16) with the worm wheel (14), and a spur rack (17) fixed on the upper wall of the telescopic piece (11) and meshed with the gear (16).

2. A high precision brazing apparatus according to claim 1, wherein said telescopic member (11) is provided at a lower end thereof with a wire fixing member (18) for fixing a welding wire, and said wire fixing member (18) is provided at a side wall thereof with a hexagonal bolt for clamping the welding wire.

3. A high accuracy brazing apparatus according to any one of claims 1 to 2, wherein said column (2) is connected to said table (1) by means of reinforcing ribs (19), and a base (20) for increasing friction is provided on each of the lower two sides of said table (1).