CN210818165U

CN210818165U - Annular workpiece welding tool

Info

Publication number: CN210818165U
Application number: CN201921506599.0U
Authority: CN
Inventors: 孟繁君; 李艳来; 高洪祥
Original assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Current assignee: Tianjin Zhiyuan Machinery Manufacturing Co ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-23
Anticipated expiration: 2029-09-10

Abstract

The utility model provides an annular workpiece welding tool, which comprises a mainboard, wherein the mainboard is fixedly connected with an inner arc cushion block group and an outer arc cushion block group which are distributed in an arc shape; the main board is fixedly connected with inner and outer arc supporting plate groups distributed in an arc shape, and at least three groups of the inner and outer arc supporting plate groups are movably connected with a clamping plate assembly; and the two sides of the main board are connected with the pressing board assemblies. An annular workpiece welding frock, the design is simple, the equipment is convenient, the maintenance requirement is low, can carry out accurate positioning and good clamp to annular workpiece betterly, can detect the welding seam situation after the welding is accomplished through setting up rotatory determine module.

Description

Annular workpiece welding tool

Technical Field

The utility model belongs to welding frock field especially relates to an annular workpiece welding frock.

Background

At present, the welder has two development directions: one is to make a special welding tool for a product, and the other is to use a welding flexible working platform to assemble a general welding tool suitable for various products, and the two tools respectively have advantages and disadvantages.

For special welding frock, its advantage is: the frock is traded the type fast, and the preparation time of workman's change frock is short. When the work staff prepares the tool, the same tool can be used as long as the work staff confirms that the product drawings are the same. The disadvantages of using such a tool are: firstly, the assembly time is long, and an engineer needs to spend a week or even several weeks to design a special tool; secondly, a large amount of space is occupied in a factory; thirdly, the production cost is too high, and when a company receives products with different specifications, different special tools need to be designed to meet the requirement of welding precision.

For assembling the welding tool by using the welding flexible working platform, the scheme well solves the defect of using a special tool. First, this solution saves plant space considerably; secondly, the flexible working platform can be reused, and each positioning workpiece can be detached from the platform to restore the initial state of the platform after one project is completed. However, the use of flexible work platforms also has significant disadvantages: the one-time investment cost is high; the platform is troublesome to maintain.

Annular workpieces are common in the industrial production process, and more or less point positions on the annular workpieces are welded in the machining process of the annular workpieces, so that an annular workpiece welding tool with convenient assembly and low maintenance cost is needed to be designed.

Disclosure of Invention

In view of this, the utility model aims at providing a low cost, equipment convenience, the annular workpiece welding frock of low maintenance requirement, can carry out accurate positioning and good clamp to annular workpiece betterly.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a welding tool for an annular workpiece comprises a main board, wherein inner and outer arc cushion block groups distributed in an arc shape are fixedly connected to the main board and used for supporting the bottom of the annular workpiece; the main board is fixedly connected with an inner arc supporting plate group and an outer arc supporting plate group which are distributed in an arc shape and used for limiting the inner arc surface and the outer arc surface of the annular workpiece; the inner arc supporting plate and the outer arc supporting plate are divided into an inner arc supporting plate and an outer arc supporting plate, the annular workpiece is limited between the inner arc supporting plate and the outer arc supporting plate, the inner arc supporting plate limits the inner arc surface of the annular workpiece, and the outer arc supporting plate limits the outer arc surface of the annular workpiece; the inner arc supporting plate group and the outer arc supporting plate group are movably connected with a clamping plate assembly used for fixing the inner arc surface and the outer arc surface of the annular workpiece; and the two sides of the main plate are connected with the pressing plate assemblies and are used for pressing the top of the annular workpiece.

Further, the inner and outer arc cushion block group comprises an inner and outer arc left cushion block, an inner and outer arc middle cushion block, an inner and outer arc right cushion block and an inner and outer arc special-shaped cushion block; the number of the inner arc middle cushion blocks and the number of the outer arc middle cushion blocks are preferably four; the inner arc middle cushion block, the outer arc left cushion block, the inner arc right cushion block and the outer arc special-shaped cushion block sequentially comprise a low-position block, a high-position block and a middle-position block which are fixedly welded, and the inner arc cushion block group and the outer arc cushion block group can be guaranteed to be tightly matched with the bottom of an annular workpiece.

Furthermore, the mainboard is welded with two symmetrically distributed connecting block base plates, the connecting block base plate close to the left side is fixedly connected with one side of the inner arc and outer arc left side cushion blocks, and the connecting block base plate close to the right side is fixedly connected with one side of the inner arc and outer arc special-shaped cushion blocks.

Furthermore, the pressure plate assembly comprises a positioning plate, and a screw hole is formed in the positioning plate; a first screw rod penetrates through the screw hole, and the lower end of the first screw rod is fixedly connected with the positioning plate; the upper part of the first screw rod is in threaded connection with a first nut, a pressing plate is arranged between the first nut and the positioning plate, and the first screw rod penetrates through the pressing plate and is movably connected with the pressing plate.

Furthermore, the clamping plate assembly comprises a fixed clamping plate, and a second screw is fixedly connected to the fixed clamping plate; the second screw penetrates through the inner arc supporting plate group and the outer arc supporting plate group and is movably connected with the inner arc supporting plate group and the outer arc supporting plate group; a second nut is connected to the second screw rod in a threaded manner; the inner arc supporting plate group and the outer arc supporting plate group are positioned between the second nut and the fixed clamping plate.

Furthermore, a supporting block is fixedly connected below the main plate.

Furthermore, the main board is connected with a rotation detection assembly which is connected with a rotation detection assembly.

Furthermore, the rotation detection assembly comprises a rotating motor, an output shaft of the rotating motor is fixedly connected with a rotating shaft, and the lower end of the rotating shaft is movably connected with the main board; the lower end of the rotating shaft is positioned at the circle center of the arc where the inner arc cushion block and the outer arc cushion block are positioned; fixedly connected with telescopic link in the pivot, telescopic link one end fixedly connected with ultrasonic detection cell body, the ultrasonic detection cell body internal fixation has the ultrasonic flaw detector.

Compared with the prior art, an annular workpiece welding frock have following advantage:

(1) the utility model discloses be provided with rotatory determine module, can detect whether there is the anomaly through the ultrasonic flaw detector after the welding is accomplished.

(2) The utility model discloses a clamp plate subassembly compresses tightly annular work piece upper surface, presss from both sides tight annular work piece arcwall face through the splint subassembly, and the design is simple, the flexible operation.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic top view of an annular workpiece welding tool according to an embodiment of the present invention in a state where a workpiece is not fixed;

fig. 2 is a schematic view of a top view structure of an annular workpiece welding tool according to an embodiment of the present invention in a state of fixing a workpiece;

fig. 3 is a schematic structural view of a B-B direction cross section of an annular workpiece welding tool according to an embodiment of the present invention in a state of fixing a workpiece;

fig. 4 is a schematic view of a sectional structure in the direction of a-a when the annular workpiece welding tool of the embodiment of the present invention fixes the workpiece;

fig. 5 is a schematic view of a local enlarged structure at a position i in a state that a workpiece is fixed by the annular workpiece welding tool according to an embodiment of the present invention;

fig. 6 is a schematic front view of the inner and outer arc middle cushion block according to the embodiment of the present invention.

Description of reference numerals:

1-a main board; 2-connecting a block base plate; 3-inner and outer arc supporting plate groups; 4-inner and outer arc left side cushion blocks; 5-inner and outer arc middle cushion blocks; 501-low order block; 502-high order block; 503-a median block; 6-inner and outer arc right side cushion block; 7-inner and outer arc special-shaped cushion blocks; 8, positioning a plate; 801-screw holes; 802-a first screw; 803-first nut; 804-pressing plate; 9-fixing the splint; 901-a second screw; 902-a second nut; 10-a rotating electrical machine; 11-a rotating shaft; 1101-fixed bearings; 12-a telescopic rod; 13-ultrasonic detection of the tank body; 1301-ultrasonic flaw detector; 14-a support block; 15-ring-shaped workpiece.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

According to fig. 1-6, an annular workpiece welding tool comprises: the main board 1 is fixedly connected with an inner arc cushion block group and an outer arc cushion block group which are distributed in an arc shape; the main board 1 is fixedly connected with an inner arc supporting board group 3 and an outer arc supporting board group 3 which are distributed in an arc shape, the inner arc supporting board group 3 is divided into an inner arc supporting board and an outer arc supporting board, the annular workpiece 15 is limited between the inner arc supporting board and the outer arc supporting board, the inner arc supporting board limits the inner arc surface of the annular workpiece 15, and the outer arc supporting board in the inner arc supporting board group limits the outer arc surface of the annular workpiece 15; the inner arc supporting plate group 3 and the outer arc supporting plate group 3 are movably connected with a clamping plate assembly; the two sides of the main board 1 are connected with the pressing board assemblies; the inner and outer arc cushion block group comprises an inner and outer arc left cushion block 4, an inner and outer arc middle cushion block 5, an inner and outer arc right cushion block 6 and an inner and outer arc special-shaped cushion block 7; a plurality of the inner arc middle cushion blocks and the outer arc middle cushion blocks are provided, and four are preferably selected; the inner and outer arc left cushion block 4, the inner and outer arc middle cushion block 5, the inner and outer arc right cushion block 6 and the inner and outer arc special-shaped cushion block 7 comprise a low block 501, a high block 502 and a middle block 503 which are fixedly welded in sequence; two symmetrically distributed connecting block base plates 2 are welded on the main plate 1, the connecting block base plate 2 close to the left side is fixedly connected with one side of an inner arc and outer arc left side cushion block 4, and the connecting block base plate 2 close to the right side is fixedly connected with one side of an inner arc and outer arc special-shaped cushion block 7; the pressure plate assembly comprises a positioning plate 8, and a screw hole 801 is formed in the positioning plate 8; a first screw rod 802 penetrates through the screw hole 801, and the lower end of the first screw rod 802 is fixedly connected with the positioning plate 8; a screw hole 801; the upper part of the first screw 802 is connected with a first nut 803 through a thread, a pressure plate 804 is arranged between the first nut 803 and the positioning plate 8, and the first screw 802 penetrates through the pressure plate 804 and is movably connected with the pressure plate 804. The clamping plate assembly comprises a fixed clamping plate 9, and a second screw 901 is fixedly connected to the fixed clamping plate 9; the second screw 901 penetrates through the inner arc support plate 3 and the outer arc support plate 3 to be movably connected with the inner arc support plate and the outer arc support plate 3; a second nut 902 is connected to the second screw 901 in a threaded manner; the inner arc support plate 3 and the outer arc support plate 3 are positioned between the second nut 902 and the fixed clamp plate 9; a supporting block 14 is fixedly connected below the main plate 1; the center of the circular arc where the inner arc cushion block and the outer arc cushion block are located on the main board 1 is connected with a rotation detection assembly; the rotation detection assembly comprises a rotating motor 10, an output shaft of the rotating motor 10 is fixedly connected with a rotating shaft 11, and the lower end of the rotating shaft 11 is movably connected with the main board 1; fixedly connected with telescopic link 12 on the pivot 11, telescopic link 12 one end fixedly connected with ultrasonic detection cell body 13, ultrasonic detection cell body 13 internal fixation has ultrasonic flaw detector 1301.

The utility model discloses a concrete theory of operation is: the annular workpiece 15 is hung above the main board 1 through a crane, the workpiece is slowly placed on the main board 1, the bottom of the annular workpiece 15 is placed on the inner arc cushion block group and the outer arc cushion block group, and the bottom of the annular workpiece 15 is tightly matched with the inner arc cushion block group and the outer arc cushion block group according to the shape; adjusting the position of the fixed clamp plate 9, tightly contacting the fixed clamp plate 9 with the arc-shaped surface of the annular workpiece 15, and screwing the second nut 902 on the second screw 901, so as to fix the inner arc surface and the outer arc surface of the annular workpiece 15; adjusting the height position of the pressing plate 804, tightly contacting the pressing plate 804 with the upper surface of the annular workpiece 15, and screwing the first nut 803 on the first screw 802, so as to fix the top of the annular workpiece 15; after the annular workpiece is fixed, an operator performs welding operation on the specified point on the annular workpiece 15; after the operation is completed, the rotating motor 10 is started, the output shaft of the rotating motor 10 rotates, the rotating shaft 11 fixedly connected with the output shaft of the motor rotates, the telescopic rod 12 on the rotating shaft 11 rotates, the ultrasonic detection groove body 13 fixed at one end of the telescopic rod 12 is changed correspondingly in position, along with the rotation of the rotating shaft 11, the ultrasonic detection groove body 13 can pass through different positions on the annular workpiece 15, the ultrasonic flaw detector 1301 in the ultrasonic detection groove body 13 detects the welding seams at different positions on the annular workpiece 15, and an operator can repair the welding seams with abnormal detection.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an annular work piece welding frock which characterized in that: comprises a main board (1), wherein inner and outer arc cushion block groups distributed in an arc shape are fixedly connected to the main board (1); the main board (1) is fixedly connected with inner and outer arc supporting board groups (3) which are distributed in an arc shape, and at least three groups of the inner and outer arc supporting board groups (3) are movably connected with a clamping board assembly; and pressing plate assemblies are connected to two sides of the main plate (1).

2. The annular workpiece welding tool of claim 1, wherein: the inner arc supporting plate group (3) and the outer arc supporting plate group (3) comprise inner arc supporting plates and outer arc supporting plates; the inner and outer arc cushion block groups are positioned between the inner arc supporting plate and the outer arc supporting plate.

3. The annular workpiece welding tool of claim 1, wherein: the inner and outer arc cushion block group comprises an inner and outer arc left cushion block (4), an inner and outer arc middle cushion block (5), an inner and outer arc right cushion block (6) and an inner and outer arc special-shaped cushion block (7); the inner and outer arc left side cushion block (4), the inner and outer arc middle cushion block (5), the inner and outer arc right side cushion block (6) and the inner and outer arc special-shaped cushion block (7) respectively comprise a low-position block (501), a high-position block (502) and a middle-position block (503) which are fixedly welded in sequence.

4. The annular workpiece welding tool of claim 3, wherein: the welding has two connecting block backing plate (2) of symmetric distribution on mainboard (1), leans on connecting block backing plate (2) on the left and inside and outside arc left side cushion (4) fixed connection, leans on connecting block backing plate (2) on the right and inside and outside arc dysmorphism cushion (7) fixed connection.

5. The annular workpiece welding tool of claim 1, wherein: the pressure plate assembly comprises a positioning plate (8), and the positioning plate (8) is fixedly connected with the main plate (1); a screw hole (801) is formed in the positioning plate (8), and a first screw (802) penetrates through the screw hole (801) and is arranged on the positioning plate (8); the lower end of the first screw rod (802) is fixedly connected with the positioning plate (8), and the upper part of the first screw rod (802) is in threaded connection with a first nut (803); a pressing plate (804) is arranged between the first nut (803) and the positioning plate (8); the first screw (802) penetrates through the pressure plate (804) and is movably connected with the pressure plate (804).

6. The annular workpiece welding tool of claim 1, wherein: the clamping plate assembly comprises a fixed clamping plate (9), and a second screw (901) is fixedly connected to the fixed clamping plate (9); the second screw (901) penetrates through the inner arc supporting plate group and the outer arc supporting plate group (3) to be movably connected with the inner arc supporting plate group and the outer arc supporting plate group (3); a second nut (902) is connected to the second screw (901) in a threaded manner; the inner arc supporting plate group (3) and the outer arc supporting plate group (3) are positioned between the second nut (902) and the fixed clamping plate (9).

7. The annular workpiece welding tool of claim 1, wherein: a supporting block (14) is fixedly connected below the main plate (1); the main board (1) is connected with a rotation detection assembly.

8. The annular workpiece welding tool of claim 7, wherein: the rotation detection assembly comprises a rotating motor (10), and an output shaft of the rotating motor (10) is fixedly connected with a rotating shaft (11); the lower end of the rotating shaft (11) is movably connected with the main board (1), and the lower end of the rotating shaft (11) is connected with the main board; the rotating shaft (11) is fixedly connected with a telescopic rod (12), one end of the telescopic rod (12) is fixedly connected with an ultrasonic detection tank body (13), and an ultrasonic flaw detector (1301) is fixed in the ultrasonic detection tank body (13).