Holding clamp for welding furnace body

Abstract

The utility model belongs to furnace body machining equipment, and particularly relates to a holding clamp for furnace body welding. The holding and clamping fixture for furnace body welding comprises a bottom plate, a first stand column is arranged on the bottom plate, the holding and clamping fixture further comprises two holding and clamping sleeves which are symmetrically arranged, one ends of the holding and clamping sleeves are rotationally connected to the first stand column, the holding and clamping fixture further comprises two side pushing assemblies which are symmetrically arranged, and each side pushing assembly comprises a side pushing seat fixed to the bottom plate; at least one hydraulic driving assembly is arranged on the side pushing seat, the movable end of the hydraulic driving assembly is connected with the other end of the holding clamping sleeve, and the hydraulic driving assembly is used for driving the holding clamping sleeve to rotate around the joint of the holding clamping sleeve and the first stand column; a welding gap is formed between the ends of the two enclasping jackets, the bottom plate is further provided with a welding seam supporting assembly abutting against the inner wall of the furnace body, and the welding seam supporting assembly corresponds to the welding seam gap.

Description

TECHNICAL FIELD

[0001] The utility model belongs to furnace body machining equipment, in particular to a kind of furnace body welding is embraced and clamped clamp. BACKGROUND

[0002] With the continuous improvement of production process, new requirements are put forward for furnace body in life process, and the thickness of the plate of furnace body is thicker and thicker, and the existing welding technology is not suitable for the welding of such thick plate.

[0003] The cavity inner diameter of furnace body produced by our company is greater than or equal to 2m, and the thickness of cylinder wall is greater than or equal to 50mm, so the existing clamp cannot support and position such furnace body, and a new welding clamp needs to be redesigned. SUMMARY

[0004] The utility model discloses a kind of embraced and clamped clamp, which is convenient for positioning adjustment and clamping, and is suitable for large-size furnace body welding.

[0005] The technical scheme of the utility model is as follows:

[0006] The furnace body welding embraced and clamped clamp includes a base plate, characterized in that: a first stand is provided on the base plate, and two symmetrical embraced and clamped sleeves are provided. The end of the embraced and clamped sleeve is rotatably connected to the first stand, and two symmetrical side pushing assemblies are provided. The side pushing assembly includes a side pushing seat fixed to the base plate, and at least one hydraulic drive assembly is provided on the side pushing seat. The movable end of the hydraulic drive assembly is connected to the other end of the embraced and clamped sleeve. The hydraulic drive assembly is used to drive the embraced and clamped sleeve to rotate around its connection with the first stand. When the hydraulic drive assembly drives the embraced and clamped sleeve to embrace and clamp the furnace body, a welding gap is formed between the ends of the two embraced and clamped sleeves. A weld seam support assembly is also provided on the base plate, which abuts against the inner wall of the furnace body. The weld seam support assembly corresponds to the weld seam gap.

[0007] Further, a support assembly is also provided on the base plate, which includes a plurality of support seats fixed to the base plate and distributed circumferentially. A support roller is provided on the upper end of the support seat, which is used to support the lower end of the furnace body.

[0008] Further, at least one of the support seats is provided with a drive motor, which is used to drive the support roller to rotate.

[0009] Further, the support seat is further provided with a height adjusting mechanism, and the support rollers are arranged on the height adjusting mechanism.

[0010] Further, the bottom plate is further provided with a supporting assembly, and the supporting assembly is used for supporting the clamping sleeve.

[0011] Further, the height adjusting mechanism is arranged between the supporting column and the supporting plate.

[0012] Further, the welding seam supporting assembly comprises a welding seam support seat fixedly connected with the bottom plate, the side surface of the welding seam support seat is opposite to the welding seam of the workpiece, the lower part of the side surface of the welding seam support seat is provided with a welding lower support, the upper end of the welding lower support is provided with a first mounting groove, the upper end of the welding seam support seat is fixedly provided with an upper hinge seat, the upper hinge seat is hingedly provided with an upper turnover pressing seat, the upper turnover pressing seat is provided with a second mounting groove, and a plurality of replaceable supporting blocks are fixedly arranged on the side surface of the welding seam support seat between the welding lower support and the upper turnover pressing seat.

[0013] Further, the two side edges of the upper turnover pressing seat are respectively provided with first bolt hole seats, the two side edges of the uppermost replaceable supporting block are provided with second bolt hole seats, and a positioning bolt is inserted and matched in the first bolt hole seat and the second bolt hole seat.

[0014] In conclusion, the welding seam supporting assembly has the following beneficial effects:

[0015] The utility model discloses a kind of suitable for big diameter big wall thickness's furnace body welding's embrace clamp fixture, the furnace body not welded by curling is placed between two embrace tightly clamping sleeve, then embrace tightly clamping sleeve is driven by hydraulic drive assembly to tighten furnace body, guarantee the roundness of furnace body, while embrace tightly clamping sleeve and weld seam support assembly form the compression and support of butt welding part, and continuously exert force in the welding process, reduce the deformation of furnace body in the welding process, so as to guarantee the roundness of furnace body, and there is weld seam support assembly on the support of shaft, also guarantee the perpendicularity of furnace body, so the embrace clamp fixture of the utility model is beneficial to improve the dimensional accuracy of product. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the three-dimensional schematic view of the utility model;

[0017] Figure 2 It is the three-dimensional schematic view of another view of the utility model;

[0018] Figure 3 It is the half cut schematic view of the utility model;

[0019] Figure 4 It is the three-dimensional schematic view of the utility model (remove embrace tightly clamping sleeve);

[0020] Figure 5 It is Figure 4 Enlarged schematic view of A in the middle;

[0021] Figure 6 It is the three-dimensional schematic view of height adjusting mechanism of the utility model;

[0022] Figure 7 It is the cut schematic view of height adjusting mechanism of the utility model;

[0023] Figure 8 It is the three-dimensional schematic view of supporting assembly of the utility model;

[0024] 1 in drawing is bottom plate,

[0025] 2 is first stand,

[0026] 3 is embrace tightly clamping sleeve, 30 is welding gap,

[0027] 4 is side push assembly, 40 is side push seat, 41 is hydraulic drive assembly,

[0028] 5 is weld seam support assembly,

[0029] 6 is support assembly, 60 is support seat, 61 is support roller, 62 is drive motor,

[0030] 63 is a height adjusting mechanism, 630 is an adjusting bottom plate, 6301 is a guide groove, 631 is a middle fixing plate, 632 is an adjusting screw, 633 is an adjusting inclined die, 6331 is an inclined surface, 634 is an adjusting end plate, 6340 is a sliding surface,

[0031] 6342 is a roller mounting plate,

[0032] 7 is a supporting assembly, 70 is a supporting column, 71 is a supporting plate, 710 is a supporting sleeve, 711 is a supporting ball, 31 is a sliding plate,

[0033] 50 is a weld seam support seat, 501 is a lower weld seam support, 5010 is a first mounting groove, 502 is an upper hinge seat, 503 is an upper turnover pressing seat, 5030 is a second mounting groove, 504 is a replaceable support block,

[0034] 5020 is a first bolt seat, 5040 is a second bolt seat. DETAILED DESCRIPTION

[0035] The present application will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present application and implement it. The embodiments are not intended to limit the present application.

[0036] It should be noted that when an element is referred to as being "disposed on", "fixed on" another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "fixed on" or "fixedly connected" to another element, it can be either detachably fixed to the other element or non-detachably fixed to the other element. When an element is referred to as being "connected" or "rotatably connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", "upper", "lower", and similar expressions are used for the purpose of illustration only and are not intended to be limiting.

[0037] Unless otherwise defined, 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 application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0038] The terms "first", "second", "third", and so on, used in the present application are not intended to represent a specific number and order, but are merely used for distinguishing names.

[0039] Reference Signs List Figures 1 to 7As shown, the furnace body welding holding clamp comprises a bottom plate 1 for bearing each component of the clamp so that the whole clamp is an integral whole, facilitating hoisting and fixing the clamp on a welding device; the bottom plate 1 is provided with a first stand 2, and further comprises two symmetrical holding sleeves 3 rotatably connected to the first stand 2, and two symmetrical side pushing assemblies 4; the side pushing assembly 4 comprises a side pushing seat 40 fixed on the bottom plate, and at least one hydraulic driving assembly 41 provided on the side pushing seat 40; the hydraulic driving assembly is a hydraulic rod, and the movable end of the hydraulic driving assembly 40 is connected to the other end of the holding sleeve 3; the hydraulic driving assembly is used to drive the holding sleeve to rotate around the connection between the holding sleeve and the first stand; when the hydraulic driving assembly drives the holding sleeve to hold the furnace body, a welding gap 30 is formed between the ends of the two holding sleeves; the bottom plate is further provided with a welding seam supporting assembly 5 abutting against the inner wall of the furnace body, and the welding seam supporting assembly 5 corresponds to the welding gap.

[0040] The utility model discloses a kind of holding clamps suitable for the furnace body welding of large diameter and large wall thickness, and the furnace body not welded by rolling is placed between two holding sleeves, then the holding sleeve is driven by hydraulic driving assembly to hold furnace body, ensure the roundness of furnace body, while holding sleeve and welding seam supporting assembly form the compression and support of butt welding part, and continuously exert force during welding, reduce the deformation of furnace body during welding, so as to ensure the roundness of furnace body, and the perpendicularity of furnace body is also ensured by the support of welding seam supporting assembly on shaft, so the holding clamp of the utility model is beneficial to improve the dimensional accuracy of product.

[0041] The bottom plate 1 is further provided with a supporting assembly 6, which comprises a plurality of supporting seats 60 fixed on the bottom plate and distributed circumferentially, and a supporting roller 61 is provided on the upper end of each supporting seat 60. The supporting roller is used to support the lower end of the furnace body. The supporting assembly is further added to support the lower end of the workpiece, and the workpiece can be adjusted in position by driving it to move on the supporting roller, which facilitates the positioning of the workpiece.

[0042] At least one of the supporting seats is provided with a driving motor 62, which is used to drive the supporting roller to rotate. In the preferred embodiment, at least two driving motors are provided on the plurality of supporting seats. The driving motor drives the supporting roller to rotate, thereby adjusting the position of the workpiece, achieving electrically powered adjustment, facilitating the operation of workers, and reducing the labor intensity of workers.

[0043] Referring to Figure 6 and Figure 7As shown, the support seat 60 is also provided with a height adjusting mechanism 63, and the support roller 61 is arranged on the height adjusting mechanism 63. Since the concentricity of the workpiece needs to be high, the workpiece needs to be adjusted before being fixed by the clamping, so as to avoid the situation that the height is inclined to affect the concentricity, and also cause the welding seam not to be on a straight line, thereby affecting the welding quality. The height adjusting mechanism 63 comprises an adjusting bottom plate 630 fixedly connected with the support seat, a guide groove 6301 is arranged on the upper surface of the adjusting bottom plate 630 along the length direction, a middle fixed plate 631 is arranged on the middle part of the adjusting bottom plate 630, an adjusting screw 632 is arranged on the middle fixed plate 631, adjusting inclined modes 633 are arranged on both sides of the middle fixed plate 631, a guide sliding block 6330 matched with the guide groove is arranged on the lower surface of the adjusting inclined mode 633, an inclined surface 6331 is arranged on the upper surface of the adjusting inclined mode 633, and the end close to the middle fixed plate is lower than the end away from the middle fixed plate, and the height adjusting mechanism further comprises an adjusting end plate 634, a sliding surface 6340 matched with the inclined surface of the adjusting inclined mode is arranged on the lower surface of the adjusting end plate 634, a group of roller mounting plates 6342 are arranged on the adjusting end plate 634, the support roller is arranged between the two roller mounting plates and connected with the roller mounting plates, the height adjusting mechanism is specifically limited here, the adjusting inclined mode is driven to move along the guide groove by the adjusting screw, the inclined surface of the adjusting inclined mode is matched with the sliding surface of the adjusting end plate to drive the adjusting end plate to move up and down, the adjustment of the height adjusting mechanism is realized, so that the concentricity and perpendicularity of the adjusted furnace body can be ensured, and the side plates 635 are fixed on the two side surfaces of the adjusting end plate, the side plates are provided with long holes, fasteners are fixedly connected with the side surfaces of the adjusting bottom plate through the long holes, when the adjusting end plate moves up and down, the side plates also move up and down, the up and down movement of the side plates is guided and limited through the long holes, and the side plates arranged at the same time can seal the height adjusting mechanism, reduce the entry of external dust into the height adjusting mechanism, and improve the service life of the height adjusting.

[0044] Referring to Figure 8 As shown, the bottom plate 1 is also provided with a supporting assembly 7, the supporting assembly 7 is used for supporting the clamping sleeve, the supporting assembly 7 comprises a supporting column 70, the supporting column 70 is provided with a supporting plate 71, and the supporting plate 71 is provided with at least one supporting sleeve 710, the supporting sleeve 710 is provided with a supporting ball 711, the clamping sleeve 3 is fixedly connected with a sliding plate 31, the supporting ball 711 is in contact with the sliding plate 31, the clamping sleeve is a semicircular clamping sleeve, the tail end of the clamping sleeve is connected with the first column, and the front end is only supported by the hydraulic driving assembly and is prone to deformation, so the supporting assembly is additionally arranged to support the front end of the clamping sleeve, reduce the deformation, and ensure the precision of the equipment.

[0045] Between the support column 70 and the support plate 71 and also provided with height adjusting mechanism 63, here we can also through the height adjusting mechanism to carry out auxiliary adjustment, ensure the coaxial degree between the clamping sleeve and workpiece, the structure of the height adjusting mechanism is same as the foregoing height adjusting mechanism, not in the spread of superfluous words.

[0046] Referring to Figure 4 As shown in the welding seam support assembly 5 includes the welding seam support seat 50 fixedly connected with the bottom plate, the side of the welding seam support seat 50 is opposite to the welding seam of the workpiece, the lower part of the side of the welding seam support seat 50 is provided with the welding lower support 501, the upper end of the welding lower support 501 is provided with the first mounting groove 5010, the upper end of the welding seam support seat 50 is fixedly provided with the upper hinge seat 502, the upper hinge seat 502 is hingedly provided with the upper turnover pressure seat 503, the upper turnover pressure seat 503 is provided with the second mounting groove 5030, a plurality of replaceable support blocks 504 are fixedly arranged on the side of the welding seam support seat between the welding lower support 501 and the upper turnover pressure seat 503, the surface of the replaceable support block abuts against the inner wall of the workpiece, the welding seam support assembly is limited here, when the workpiece is positioned, the clamping sleeve clamps the workpiece, at this time, the clamping sleeve and the welding seam support assembly fix the inner and outer sides of the welding part, so that the workpiece does not displace during welding, thereby better guaranteeing the welding quality.

[0047] The two side edges of the upper turnover pressure seat 503 are respectively provided with the first bolt seat 5020, the two sides of the replaceable support block 504 located at the uppermost end are provided with the second bolt seat 5040, and the positioning bolt is inserted and matched in the first bolt seat and the second bolt seat, so that the upper hinge seat and the replaceable support block are positioned through the positioning bolt, the reliability of the positions between the upper hinge seat and the replaceable support block is guaranteed, and the positioning accuracy of the lead-in and lead-out blocks located at the two ends of the welding part of the workpiece is guaranteed.

[0048] In summary, the utility model has the following beneficial effects:

[0049] The utility model discloses a kind of clamping fixtures suitable for the welding of large-diameter large-wall-thickness furnace body, cylindrical furnace body not welded is placed between two clamping sleeves, then the clamping sleeve is driven by hydraulic drive assembly to tighten furnace body, guarantee the roundness of furnace body, while the clamping sleeve and welding seam support assembly form the compression and support of welding part, and continuously exert force during welding, reduce the deformation of furnace body during welding, so that the roundness of furnace body is guaranteed, and the perpendicularity of furnace body is also guaranteed with the support of welding seam support assembly on shaft, so the clamping fixture of the utility model is beneficial to improve the dimensional accuracy of product.

[0050] All other embodiments that would be obvious to those of ordinary skill in the art based on the description of the application as described herein are within the scope of the present application.

Claims

1. A body welding clamshell fixture comprising a base plate, characterised in that: The bottom plate is provided with a first stand, and further comprises two symmetrically arranged clamping sleeves, one end of the clamping sleeve being rotatably connected to the first stand, and further comprising two symmetrically arranged side pushing assemblies, the side pushing assembly comprising a side pushing seat fixed to the bottom plate, at least one hydraulic drive assembly being arranged on the side pushing seat, a movable end of the hydraulic drive assembly being connected to the other end of the clamping sleeve, the hydraulic drive assembly being used to drive the clamping sleeve to rotate about the connection between the clamping sleeve and the first stand, when the hydraulic drive assembly drives the clamping sleeve to clamp the furnace body, a welding gap is formed between the ends of the two clamping sleeves, and a welding seam support assembly abutting against the inner wall of the furnace body is further arranged on the bottom plate, the welding seam support assembly corresponding to the welding gap.

2. The body welding clamshell fixture of claim 1, wherein: The bottom plate is further provided with a support assembly, the support assembly comprising a plurality of support seats fixed to the bottom plate and distributed along the circumference, an upper end of the support seat being provided with a support roller, the support roller being used to support the lower end of the furnace body.

3. The body welding clamshell fixture of claim 2, wherein: At least one of the support seats is provided with a drive motor, the drive motor being used to drive the support roller to rotate.

4. The body welding clamshell fixture of any one of claims 2 or 3, wherein: The support seat is further provided with a height adjusting mechanism, the support roller being arranged on the height adjusting mechanism, the height adjusting mechanism comprising an adjusting bottom plate fixedly connected to the support seat, a guide groove being arranged on the upper surface of the adjusting bottom plate along the length direction, a middle fixed plate being arranged in the middle of the adjusting bottom plate, an adjusting screw being arranged on the fixed plate, adjusting inclined modes being arranged on the two sides of the middle fixed plate, a guide block being arranged on the lower surface of the adjusting inclined mode and matched with the guide groove, an inclined surface being arranged on the upper surface of the adjusting inclined mode and lower than the end far away from the middle fixed plate, an adjusting end plate being further arranged, the lower surface of the adjusting end plate being symmetrically provided with a sliding surface matched with the inclined surface of the adjusting inclined mode, a group of roller mounting plates being symmetrically arranged on the adjusting end plate, the support roller being arranged between the two roller mounting plates and connected with the roller mounting plates.

5. The body welding clamshell fixture of claim 1 wherein: The bottom plate is further provided with a support assembly, the support assembly comprising a plurality of support seats fixed to the bottom plate and distributed along the circumference, an upper end of the support seat being provided with a support roller, the support roller being used to support the lower end of the furnace body.

6. The body welding clamshell fixture of claim 4, wherein: A height adjusting mechanism is further arranged between the support stand and the support plate.

7. The body welding clamshell fixture of claim 1 wherein: The welding seam support assembly comprises a welding seam support seat fixedly connected to the bottom plate, the side surface of the welding seam support seat being opposite to the welding seam of the workpiece, a welding lower support being arranged on the lower part of the side surface of the welding seam support seat, a first mounting groove being arranged on the upper end of the welding lower support, an upper hinge seat being fixedly arranged on the upper end of the welding seam support seat, an upper overturning and pressing seat being hingedly arranged on the upper hinge seat, a second mounting groove being arranged on the upper overturning and pressing seat, a plurality of replaceable support blocks being fixedly arranged on the side surface of the welding seam support seat between the welding lower support and the upper overturning and pressing seat, and the surface of the replaceable support block abutting against the inner wall of the workpiece.

8. The body welding clamshell fixture of claim 7, wherein: The two side edges of the upper overturning and pressing seat are respectively provided with first bolt seats, the two sides of the replaceable support block at the uppermost end are provided with second bolt seats, and a positioning bolt is inserted and matched in the first bolt seat and the second bolt seat.

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