CN109604899B

CN109604899B - Volute welding positioning device

Info

Publication number: CN109604899B
Application number: CN201811606029.9A
Authority: CN
Inventors: 张人斌; 杨成
Original assignee: Hunan Chuangyan Intelligent Equipment Co ltd
Current assignee: Hunan Chuangyan Intelligent Equipment Co ltd
Priority date: 2018-12-27
Filing date: 2018-12-27
Publication date: 2021-01-05
Anticipated expiration: 2038-12-27
Also published as: CN109604899A

Abstract

The invention discloses a volute welding positioning device which comprises a positioning and clamping support, an inner supporting mechanism and an outer pressing mechanism, wherein the inner supporting mechanism is connected with the positioning and clamping support and used for positioning and tightly supporting the inner wall of a welded volute, the outer pressing mechanism is connected with the positioning and clamping support and used for pressing the outer wall of the welded volute, and an electrode matched with the shape of the inner wall of the welded volute is arranged on the inner supporting mechanism. According to the invention, the welded volute is fixed by spot welding, then the welded volute is fixed on the welding machine and can rotate while being welded, so that automatic processing is realized, the labor intensity of workers is reduced, the production efficiency is improved, the welding seam is attractive and uniform, the welding seam strength is high, the connection is stable, and the welding machine can be widely used for positioning and clamping the volute.

Description

Volute welding positioning device

Technical Field

The invention relates to welding equipment, in particular to a positioning device for machining a volute.

Background

Seam welding refers to the process of passing a workpiece between two rotating disk-shaped electrodes (rolling disks) to form a continuous weld with overlapped welding points. The welding part is assembled into a lap joint or an inclined butt joint and is arranged between two roller electrodes to move relative to the workpiece, the rollers pressurize the welding part and rotate, and power is continuously or intermittently supplied to form a continuous welding line.

The air duct volute of the range hood comprises a coaming, side plates positioned on two sides of the coaming and supporting blocks arranged on the side plates.

Aiming at the welding of the volute, the existing welding process adopts manual holding of the coaming and the side plate, spot welding is adopted for fixing, and then the welding is carried out by holding, so that the labor intensity of the process is high, workers are nearby the electrode for a long time, radiation causes physical damage to the workers, the efficiency is low, the welding line is not attractive, and the production efficiency is low.

Disclosure of Invention

In order to solve the above technical problem, an object of the present invention is to provide a volute welding and positioning device capable of positioning and clamping a volute.

The technical scheme provided by the invention is that the welding device comprises a positioning and clamping support, an inner supporting mechanism connected with the positioning and clamping support and used for positioning and supporting the inner wall of a welded volute, and an outer pressing mechanism connected with the positioning and clamping support and used for pressing the outer wall of the welded volute, wherein the inner supporting mechanism is provided with an electrode matched with the shape of the inner wall of the welded volute.

Preferably, the internal supporting mechanism comprises an upper supporting plate, a lower supporting plate and a second driving device for enabling the upper supporting plate and the lower supporting plate to move coaxially relative to each other, and the electrode comprises an upper electrode connected with the upper supporting plate and a lower electrode connected with the lower supporting plate.

Preferably, the upper supporting plate is connected with the positioning and clamping support, and the second driving device is connected with the lower supporting plate and drives the lower supporting plate to move coaxially relative to the upper supporting plate;

or: the lower supporting plate is connected with the positioning clamping support, and the second driving device is connected with the upper supporting plate and drives the upper supporting plate to move coaxially relative to the lower supporting plate.

Preferably, the inner supporting mechanism further comprises a first guide mechanism connected with the upper supporting plate and the lower supporting plate and used for limiting the movement track of the upper supporting plate and the lower supporting plate.

Preferably, the volute welding and positioning device further comprises an auxiliary positioning mechanism connected with the positioning and clamping support and used for auxiliary positioning of the coaming of the welded volute.

Preferably, the volute welding positioning device further comprises a locking mechanism for locking the horizontal rotating position of the volute welding positioning device.

Preferably, the locking mechanism comprises a second telescopic mechanism and a locking groove which is arranged on the positioning clamping support and matched with the second telescopic mechanism.

Preferably, the external pressure mechanism comprises a pressure plate and a third telescopic mechanism which is connected with the pressure plate and drives the pressure plate to move relative to the internal support mechanism.

According to the invention, the welded volute is fixed by spot welding, then the welded volute is fixed on the welding device through the volute welding and positioning device, and can rotate while welding, and the welding seam mechanism is matched for working, so that automatic processing is realized, the labor intensity of workers is reduced, the production efficiency is improved, the welding seam is attractive and uniform, the welding seam intensity is high, and the connection is stable.

And the distance of the inner support mechanism can be adjusted up and down, the inner support mechanism is completely matched with the inner cavity of the welded volute, excessive compression and insufficient compression are avoided, and the shape of the welded volute is ensured. The spiral case welding machine is also suitable for welded spiral cases with different sizes, and has wide application range.

In addition, by utilizing the positioning and clamping device, the coaming of the welded volute and the side plates on the two sides of the coaming are positioned at the same time, so that the concentricity of the two coamings is ensured, the product quality is high, and the shape is regular.

Drawings

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

FIG. 1 is a schematic front view of one of the components;

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

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a perspective view of FIG. 1;

FIG. 5 is a perspective view of FIG. 1 in another orientation;

figure 6 is a perspective view of the welded volute of figure 1 installed.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It is to be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the generic and descriptive sense only and not for purposes of limitation, as the term is used in the generic and descriptive sense, and not for purposes of limitation, unless otherwise specified or implied, and the specific reference to a device or element is intended to be a reference to a particular element, structure, or component. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, the present embodiment includes a positioning and clamping support 31, an inner supporting mechanism 32 connected to the positioning and clamping support 31 and used for positioning and supporting the inner wall of the welded volute 100, and an outer pressing mechanism 33 connected to the positioning and clamping support 31 and used for pressing the outer wall of the welded volute 100, wherein the inner supporting mechanism 32 is provided with an electrode 34 matching the shape of the inner wall of the welded volute 100.

The electrode 34 can be detachably connected and manufactured into different sizes and shapes, so as to be suitable for different welded volutes 100.

Wherein, the welded volute 100 comprises a surrounding plate and side plates positioned at two sides of the surrounding plate.

A coupling hole 36 may be provided at the bottom of the pilot clamp holder 31 for coupling with a driving device to drive the pilot clamp holder 31 to rotate.

In order to avoid the welding current from spreading throughout the whole device, an insulating pad may be disposed on the contact surface between the positioning and clamping support 31 and the welded volute, so as to prevent the welding current of the welded volute 100 from flowing to the positioning and clamping support 31. An insulating pad can be arranged on the external pressure mechanism 33 to prevent the current on the welded volute 100 from flowing to the external pressure mechanism 33, and the internal support mechanism 32 is also connected with the positioning and clamping support 31 in an insulating way.

The inner supporting mechanism 32 is used for supporting and positioning the inner wall of the welded volute 100, so that the welded volute 100 maintains a required shape and is matched with the outer pressing mechanism 33 to realize complete positioning.

In the embodiment, the welded volute 100 is fixed by spot welding and then fixed on the inner support mechanism 32, so that the internal shape and size of the welded volute 100 are ensured, the welded volute 100 is completely fixed by matching with the external pressure mechanism 33 and can be welded and rotated at the same time, and the welding seam mechanism works in a matching manner, so that automatic processing is realized, the labor intensity of workers is reduced, the production efficiency is improved, the welding seam is attractive and uniform, the welding seam intensity is high, and the connection is stable.

Moreover, by using the positioning and clamping device, the surrounding plate of the welded volute 100 and the side plates on the two sides of the surrounding plate are positioned at the same time, so that the concentricity is ensured, the product quality is high, and the shape is correct.

Moreover, the distance of the inner support mechanism 32 can be adjusted up and down, the inner support mechanism is completely matched with the inner cavity of the welded volute 100, excessive compression and insufficient compression are avoided, and the shape of the welded volute 100 is ensured. And the device is also suitable for welded volutes 100 with different sizes, and has wide application range.

As a further preferred embodiment, the inner supporting mechanism 32 may include an upper supporting plate 321, a lower supporting plate 322, and a second driving device 323 for relatively moving the upper supporting plate 321 and the lower supporting plate 322 coaxially, and the electrode 34 includes an upper electrode 341 connected to the upper supporting plate 321 and a lower electrode 342 connected to the lower supporting plate 322. The upper electrode 341 and the lower electrode 342 are detachably connected and connected by a copper strip, and a plurality of upper electrodes 341 and lower electrodes 342 with different specifications and sizes and shapes can be manufactured, so that the electrode is suitable for different sizes and different shapes.

Wherein, the upper supporting plate 321 and the lower supporting plate 322 are used for contacting with the side plate of the welded volute 100, and the coaxial relative movement means that the moving direction is perpendicular to the side plate of the welded volute 100, so as to limit the two side plates of the welded volute 100 to the required size.

Wherein the second driving device 323 can be an electric cylinder, an air cylinder, an oil cylinder or an electric push rod and other linear driving devices.

Furthermore, the upper supporting plate 321 can be connected to the positioning and clamping support 31, and the second driving device 323 is connected to the lower supporting plate 322 and drives the lower supporting plate 322 to move coaxially with respect to the upper supporting plate 321, so as to adjust the distance.

Of course, the following structure may be adopted:

the lower supporting plate 322 is connected with the positioning and clamping support 31, and the second driving device 323 is connected with the upper supporting plate 321 and drives the upper supporting plate 321 to move coaxially relative to the lower supporting plate 322, so as to realize distance adjustment.

Or, the upper supporting plate 321 and the lower supporting plate 322 are movably connected to the positioning and clamping support 31, and both can adjust the position, and the second driving device 323 can drive the upper supporting plate 321 to move and the lower supporting plate 322 to move.

As a further preference of the present embodiment, the inner supporting mechanism 32 may further include a first guiding mechanism 324 connected to the upper supporting plate 321 and the lower supporting plate 322 and used for defining the movement track of the upper supporting plate 321 and the lower supporting plate 322, so that the upper supporting plate 321 and the lower supporting plate 322 do not shake randomly, and only one movement is perpendicular to the side plate of the welded scroll casing 100. The first guiding mechanism 324 may adopt a structure of a linear bearing and a guide rod guide sleeve, and a plurality of arrangements are required.

As a further preference of the present embodiment, the volute welding and positioning device may further include an auxiliary positioning mechanism 35 connected to the positioning and clamping support 31 and configured to perform auxiliary positioning on the welded volute 100 in the horizontal direction, and in particular, configured to position a surrounding plate of the welded volute 100, so as to prevent continuous movement in the fixing process and reduce the fixing difficulty.

The auxiliary positioning mechanism 35 may be an electric cylinder, an air cylinder, an oil cylinder, or other linear driving device, and is connected to the positioning and clamping support 31, and when a piston rod of the auxiliary positioning mechanism 35 extends, the outer surface of the coaming of the welded volute 100 is just clamped, so as to achieve auxiliary positioning.

As a further preference of the present embodiment, the volute welding positioning device may further include a locking mechanism for locking a horizontal rotational position of the volute welding positioning device.

Wherein, the locking mechanism may comprise a second telescopic mechanism arranged on other fixed working tables and a locking groove 37 arranged on the positioning and clamping support 31 and matched with the second telescopic mechanism. The second telescopic mechanism can be an electric cylinder, an air cylinder or an oil cylinder and other linear driving devices, and is clamped with the locking groove 37 when a piston rod of the second telescopic mechanism extends out, so that locking is realized, the rotation of the volute welding positioning device during non-operation and transportation is prevented, and the spiral casing welding positioning device can also be used in certain welding occasions which do not need rotation.

In a further preferred embodiment of the present invention, the external pressure mechanism 33 includes a pressure plate 331 and a third stretching mechanism 332 connected to the pressure plate 331 and driving the pressure plate 331 to move relative to the internal support mechanism 32. The third telescoping mechanism 332 is a linear driving device such as an electric cylinder, an air cylinder, an oil cylinder, an electric push rod, etc., and drives the pressing plate 331 to move, and the moving direction of the pressing plate 331 is perpendicular to the side plate of the welded scroll casing 100.

It should be noted that, in this document, 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that there are no specific structures but a few objective structures due to the limited character expressions, and that those skilled in the art may make various improvements, decorations or changes without departing from the principle of the invention or may combine the above technical features in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. The volute welding positioning device is characterized by comprising a positioning clamping support (31), an inner supporting mechanism (32) connected with the positioning clamping support (31) and used for positioning and tightly supporting the inner wall of a welded volute (100), and an outer pressing mechanism (33) connected with the positioning clamping support (31) and used for pressing the outer wall of the welded volute (100), wherein an electrode (34) matched with the shape of the inner wall of the welded volute (100) is arranged on the inner supporting mechanism (32), the inner supporting mechanism (32) comprises an upper supporting plate (321), a lower supporting plate (322) and a second driving device (323) used for enabling the upper supporting plate (321) and the lower supporting plate (322) to move relatively coaxially, and the electrode (34) comprises an upper electrode (341) connected with the upper supporting plate (321) and a lower electrode (342) connected with the lower supporting plate (322).

2. The spiral casing welding positioning device according to claim 1, characterized in that the upper support plate (321) is connected with a positioning clamping support (31), and the second driving device (323) is connected with the lower support plate (322) and drives the lower support plate (322) to move coaxially relative to the upper support plate (321);

or: the lower supporting plate (322) is connected with the positioning clamping support (31), and the second driving device (323) is connected with the upper supporting plate (321) and drives the upper supporting plate (321) to move coaxially relative to the lower supporting plate (322).

3. The spiral casing welding positioning device according to claim 1, characterized in that the inner support mechanism (32) further comprises a first guide mechanism (324) connected with the upper support plate (321) and the lower support plate (322) and used for defining the motion tracks of the upper support plate (321) and the lower support plate (322).

4. The volute welding positioning device according to any of the claims 1-3, further comprising an auxiliary positioning mechanism (35) connected to the positioning clamp support (31) and used for auxiliary positioning of the coaming of the welded volute (100).

5. The spiral casing welding position device of any of claims 1 to 3 further comprising a locking mechanism for locking the horizontal rotational position of the spiral casing welding position device.

6. The spiral casing welding positioning device according to claim 5, characterized in that the locking mechanism comprises a second telescoping mechanism and a locking groove (37) provided on the positioning clamp holder (31) and cooperating with the second telescoping mechanism.

7. The scroll welding positioning device according to any of the claims 1-3, characterized in that the outer pressure mechanism (33) comprises a pressure plate (331) and a third telescoping mechanism (332) connected to the pressure plate (331) and driving the pressure plate (331) to move relative to the inner support mechanism (32).