CN210413209U - Crane underframe welding positioning device - Google Patents
Crane underframe welding positioning device Download PDFInfo
- Publication number
- CN210413209U CN210413209U CN201920869979.4U CN201920869979U CN210413209U CN 210413209 U CN210413209 U CN 210413209U CN 201920869979 U CN201920869979 U CN 201920869979U CN 210413209 U CN210413209 U CN 210413209U
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- pressing
- crane underframe
- positioning
- crane
- welding
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- 238000003466 welding Methods 0.000 title claims abstract description 79
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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Abstract
The utility model relates to a hoist chassis welding position device. The welding and positioning device for the crane underframe comprises a base, wherein the crane underframe is placed on a workbench of the base, a positioning column and a pressing column are arranged on the base, and a pressing device for pressing the crane underframe between the positioning column and the pressing column is arranged on the pressing column; a lateral positioning block is arranged between the positioning column and the crane underframe for positioning the crane underframe, and top pressing pieces for pressing the crane underframe are arranged on the upper portions of the positioning column and the pressing column. Compressing device and top compress tightly the piece and compress tightly the hoist chassis, press from both sides tightly and fixed the hoist chassis, the position relatively fixed of base, only need select the lateral part locating piece of equidimension just can make hoist chassis extending direction unanimous with welder's welding direction, can choose for use different lateral part locating pieces to fix a position the hoist chassis according to the size of the hoist chassis of difference in addition, need not adjust clamping device's displacement volume before the welding, improved welding efficiency.
Description
Technical Field
The utility model relates to a hoist chassis welding position device.
Background
When the long straight seam of the crane underframe is welded, because the underframe is longer, if manual segmented welding is adopted, the workload is large, the efficiency is lower, and meanwhile, the welding quality of the welding seam cannot be ensured. Except for manual segmented welding, the gantry automatic welding machine can be used for welding the crane underframe, the welding speed is high during welding of the gantry automatic welding machine, the welding quality is high, but a large amount of heat generated in the welding process can cause deformation of the crane underframe, and the quality of the crane underframe is influenced.
The utility model discloses a numerical control case type roof beam U type baffle assemblage welding machine is disclosed in the chinese utility model patent of grant bulletin number CN201380365Y, clamping device is installed respectively to the both sides of longmen frame, the baffle that will treat welding earlier through clamping device in both sides when using presss from both sides tightly, the welding seam that makes the baffle is just to welder, set up crossbeam lift hydraulic shaft in longmen frame, hydraulic shaft sub-unit connection has the movable cross beam who takes the pressure head, move down through crossbeam lift hydraulic shaft and compress tightly the pressure head on the crossbeam, realize compressing tightly of baffle, the deformation of baffle in the welding process has been prevented.
The numerical control box girder U-shaped partition plate assembling and welding machine can be used for welding the crane underframe, the crane underframe is fixed through the clamping devices and the pressure head, the crane underframe is prevented from deforming in the welding process, when the crane underframe is positioned, the positions of the clamping devices on two sides need to be adjusted to enable the positions to be welded to be opposite to the welding guns, the smooth welding can be guaranteed, in addition, the crane underframe is longer, multiple pairs of clamping devices need to be used for clamping the crane underframe, the extending direction of the positions to be welded is consistent with the moving direction of the welding guns, the positions to be adjusted are multiple, the workload of adjustment before welding is large, and the welding efficiency of the crane underframe is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hoist chassis welding position device for solve among the prior art problem that hoist chassis welding efficiency is low that the work load of adjustment caused greatly before the welding.
In order to achieve the above object, the utility model discloses a crane chassis welding position device's technical scheme is, crane chassis welding position device includes:
the base is fixedly connected with the ground or a fixed object on the ground and is provided with a workbench for placing the end part of the underframe of the crane;
the positioning column is arranged on one side of the workbench, extends along the vertical direction and is used for positioning one side of the crane underframe;
the pressing column is arranged on the other side of the workbench, extends along the vertical direction and is arranged opposite to the positioning column, and a pressing device used for jacking the other side of the crane underframe so as to fix the crane underframe between the positioning column and the pressing column is arranged on the pressing column;
the side positioning block is arranged on the workbench, is positioned between the positioning column and the pressing column and is arranged in a manner of being tightly attached to the positioning column, so that the part to be welded of the crane underframe is positioned under the welding gun after the pressing device presses the crane underframe;
the supporting beam is fixed at the upper ends of the positioning column and the pressing column, so that the positioning column, the supporting beam and the pressing column form a portal structure, and a top pressing part for pressing the crane underframe on the workbench is arranged on the supporting beam;
the two bases are oppositely arranged, so that the two end parts of the crane underframe are respectively placed on the workbench of the base, and the positioning columns of the bases are positioned on the same side of the crane underframe.
The utility model discloses a hoist chassis welding position device beneficial effect is: the crane underframe is arranged on the workbench of the base, the crane underframe is positioned by the two side positioning blocks at the same side, then the pressing device is used for pressing the crane underframe to realize the clamping and fixing of the crane underframe, because the base is relatively fixed in position, the extension direction of the crane underframe can be consistent with the welding direction of the welding gun only by selecting the side positioning blocks with the same size, thereby ensuring the smooth welding, in addition, different side positioning blocks can be selected according to the sizes of different crane underframe, when one side of the crane underframe, which is close to the compression column, is compressed on the side part positioning block, the welding position of the crane underframe is over against the welding gun, and at the moment, the crane underframe is compressed on the side part positioning block only by using the compression device, so that the displacement of a plurality of clamping devices is not required to be adjusted before welding, and the welding efficiency is improved; two bases make the extending direction of hoist chassis unanimous with welder's welding direction, guaranteed that the welded goes on smoothly, and the base setting bears the weight of the hoist chassis better at the tip of hoist chassis, makes the fixed more firm of hoist chassis, and the both sides of hoist chassis compress tightly through closing device, and the direction is compressed tightly by the top compressing part from top to bottom, makes the welded in-process hoist chassis be difficult to take place to warp, has guaranteed the welded quality.
Furthermore, a bottom positioning block for positioning the crane underframe in the up-down direction is further arranged on the workbench.
Beneficial effect sets up the bottom locating piece and can adjust the top surface of hoist chassis treating welded and welder's distance, makes the top surface of hoist and welder keep fixed distance all the time when welding not unidimensional hoist chassis, does not need the parameter of adjustment welder that relapse, helps improving work efficiency.
Furthermore, a horizontal screw nut is fixed on the pressing column, and the pressing device comprises a horizontal lead screw which forms a lead screw nut mechanism with the horizontal screw nut.
The screw nut mechanism has the advantages of being simple in structure, easy to set and capable of well compressing the crane underframe.
Furthermore, a side pressing piece is further arranged between one end, used for pressing the crane underframe, of the horizontal screw rod and the crane underframe.
Has the advantages that: the lateral pressing piece is arranged, so that the contact area between the horizontal lead screw and the crane underframe is increased, and the end part of the horizontal lead screw is prevented from scratching the crane underframe.
Further, the top pressing piece is a pressing strip.
Has the advantages that: the contact area of the pressing strip and the crane underframe is large, and the crane underframe can be better pressed in the up-down direction.
Furthermore, a vertical screw nut is fixed on the supporting beam, and a vertical screw rod of a screw nut mechanism is fixedly connected to the pressing strip and forms a screw nut mechanism together with the vertical screw nut.
The screw nut mechanism has the advantages of being simple in structure, easy to set and capable of well compressing the crane underframe.
Further: the vertical lead screws are arranged in two.
The vertical screw pressing device has the advantages that the two vertical screws are arranged, more uniform pressing force can be applied to the screw nut mechanism, the pressing strips are pressed on the positions to be welded of the crane underframe, and the crane underframe is prevented from being staggered at the positions to be welded.
Drawings
FIG. 1 is a schematic view of an embodiment of the welding and positioning device for the underframe of the crane according to the invention in use,
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a left side view of FIG. 1 (gantry robot welder not shown);
FIG. 4 is a schematic view of the welding and positioning device for the underframe of the crane in FIG. 1;
wherein: the method comprises the following steps of 1-gantry automatic welding machine, 2-crane underframe, 3-crane underframe welding positioning device, 4-base, 5-workbench, 6-positioning column, 7-pressing column, 8-side positioning block, 9-bottom positioning block, 10-side pressing piece, 11-supporting beam, 12-vertical screw rod, 13-horizontal screw rod and 14-pressing strip.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
The utility model discloses an embodiment of hoist chassis welding position device, as shown in fig. 1 and fig. 2, hoist chassis welding position device 3 is used for laying hoist chassis 2 and fixes hoist chassis 2, prevents that gantry automatic welding machine 1 hoist chassis 2 warp when welding hoist chassis 2.
As shown in fig. 2, the crane underframe 2 is long, two separated parts need to be abutted when welding, the two separated parts are clamped by the crane underframe welding and positioning device 3, and the top of the crane underframe 2 is welded at the abutted position by using the gantry automatic welding machine 1 to form a welding seam. The extending direction of the crane underframe 2 is defined as the front-back direction, and the involution direction of the crane underframe 2 is defined as the left-right direction.
The structure of the welding and positioning device 3 for the crane underframe is shown in fig. 3 and 4, and comprises a base 4, wherein the bottom of the base 4 is provided with a fixing plate fixedly connected with the ground, the top of the base 4 is a workbench 5 for placing the crane underframe 2, and a reinforcing plate is further arranged between the workbench 5 and a supporting leg of the base 4.
The left end of workstation 5 is fixed with the reference column 6 that upwards extends, and the right-hand member is fixed with the post 7 that compresses tightly that upwards extends, and reference column 6 and the channel-section steel that compresses tightly post 7 and be the U-shaped, and the notch of two channel-section steels is carried on the back mutually, and reference column 6 seals with the upper end that compresses tightly post 7, and reference column 6 still is fixed with a supporting beam 11 with the upper end that compresses tightly post 7, and a supporting beam 11 is the U-shaped channel-section steel of notch ascending, and the upper end fixed connection of 6 and the post 7 that compresses tightly of. The positioning column 6, the supporting beam 11 and the pressing column 7 form a portal structure for the crane underframe 2 to pass through.
The bottom positioning block 9 is further placed on the workbench 5, the bottom positioning block 9 can be used for positioning the crane underframe 2 in the up-down direction, the distance between the top surface of the crane underframe 2 and a welding gun of the automatic gantry welding machine 1 is a fixed value, the top surface to be welded of the crane underframe 2 can be in a welding position only by adjusting the size of the bottom positioning block 9 when the crane underframe 2 with different sizes is welded, the parameters of the welding gun do not need to be debugged, and the welding efficiency is improved.
Because the sizes of the crane underframe 2 are different, the tonnage is also different, when the crane underframe 2 is placed on the bottom positioning block 9, the vertical positioning can be ensured, but the position of the crane underframe 2 in the left-right direction needs to be adjusted, so that the joint of the top surfaces of the crane underframe 2 is positioned under the welding gun. The base 4 is fixed with the ground, and is also fixed with the relative position of welder, sets up lateral part locating piece 8 between reference column 6 and crane chassis 2, uses lateral part locating piece 8 to fix a position crane chassis 2 on left and right sides, because the size of the crane chassis 2 of different tonnages is fixed, only need select suitable lateral part locating piece 8 just can make the involution position of crane chassis 2 top surface be under welder, realizes crane chassis 2 location on left and right sides.
The pressing column 7 is provided with a pressing device which can apply acting force towards the positioning column 6 to the crane underframe 2 so as to press the crane underframe 2 between the pressing column 7 and the positioning column 6 and prevent the crane underframe 2 from deforming in the left-right direction. The pressing device in the embodiment is a horizontal screw 13 extending in the left-right direction, a horizontal nut forming a screw nut mechanism with the horizontal screw 13 is fixed on the bottom of the groove at one side of the pressing column 7 facing the crane underframe 2, and two horizontal screws 13 are arranged, so that more uniform acting force can be applied to the crane underframe 2.
In order to prevent the horizontal lead screw 13 from damaging the surface of the crane underframe 2, a side pressing piece 10 is placed at the end part of the horizontal lead screw 13 pressing against the crane underframe 2 to protect the crane underframe 2.
The supporting beam 11 is provided with a top pressing piece for pressing the crane underframe 2 on the workbench 5, the top pressing piece in the embodiment is a pressing strip 14, the upper part of the pressing strip 14 is fixedly provided with vertical screw rods 12 extending up and down, the vertical screw rods 12 are two, the pressing strip 14 has a large contact area with the top surface of the crane underframe 2 to protect the top surface, in addition, the crane underframe 2 is oppositely combined along the left and right direction, the welding positions to be welded extend along the front and back direction, and the pressing strip 14 is arranged to be capable of jacking the oppositely combined part of the crane underframe 2 to prevent the crane underframe 2 from being dislocated. The pressing strip 14 is made of channel steel, so that the structure is simple, the arrangement is convenient, and the cost is low.
The utility model discloses a hoist chassis welding position device is when using, and hoist chassis welding position device 3 lays the both ends of hoist chassis 2 along the fore-and-aft direction mutual disposition two. Firstly, selecting proper side positioning blocks 8 and bottom positioning blocks 9 according to the tonnage of a crane underframe 2, then placing the crane underframe 2 on the bottom positioning blocks 9, placing two ends of the crane underframe 2 through a base 4, adjusting a horizontal lead screw 13, pushing a side pressing piece 10 to jack the crane underframe 2, enabling the crane underframe 2 to be clamped between the side positioning blocks 8 and the side pressing piece 10, and then adjusting a vertical lead screw 12 to press the top of the crane underframe 2.
Two bases 4 mutual disposition and position relatively fixed, because the existence of lateral part locating piece 8, the extending direction of hoist chassis 2 is unanimous with welder's moving direction, still makes the position of waiting to weld be in under welder, need not adjust the position of hoist chassis 2, has improved assembly efficiency.
In other embodiments, the pressing device can be a cylinder or an oil cylinder.
In other embodiments, the top hold-down member may be actuated by an air cylinder or an oil cylinder.
In other embodiments, the bottom positioning block may not be provided, but the crane underframe is directly placed on the workbench, and the position of the welding gun needs to be adjusted for different crane underframe, so that the welding can be smoothly performed.
In other embodiments, the side pressing piece may also be a pressing plate, a pressing block, or a side pressing piece is not provided, and the end of the horizontal lead screw is directly used for pressing the crane underframe.
In other embodiments, only one horizontal lead screw can be arranged, and the crane underframe can be jacked in a larger area by the aid of the lateral pressing piece; the horizontal screw rod can be provided in plurality.
In other embodiments, only one vertical screw can be provided, which presses against the crane undercarriage by means of a larger top press. Or a plurality of jacking pressing devices are arranged for jacking the crane underframe.
In other embodiments, the positioning column and the pressing column may also be cylinders, or hollow square tubes with different directions, or L-shaped angle steels.
Claims (7)
1. Hoist chassis welding position device, its characterized in that includes:
the base is fixedly connected with the ground or a fixed object on the ground and is provided with a workbench for placing the end part of the underframe of the crane;
the positioning column is arranged on one side of the workbench, extends along the vertical direction and is used for positioning one side of the crane underframe;
the pressing column is arranged on the other side of the workbench, extends along the vertical direction and is arranged opposite to the positioning column, and a pressing device used for jacking the other side of the crane underframe so as to fix the crane underframe between the positioning column and the pressing column is arranged on the pressing column;
the side positioning block is arranged on the workbench, is positioned between the positioning column and the pressing column and is arranged in a manner of being tightly attached to the positioning column, so that the part to be welded of the crane underframe is positioned under the welding gun after the pressing device presses the crane underframe;
the supporting beam is fixed at the upper ends of the positioning column and the pressing column, so that the positioning column, the supporting beam and the pressing column form a portal structure, and a top pressing part for pressing the crane underframe on the workbench is arranged on the supporting beam;
the two bases are oppositely arranged, so that the two end parts of the crane underframe are respectively placed on the workbench of the base, and the positioning columns of the bases are positioned on the same side of the crane underframe.
2. The welding and positioning device for the crane underframe according to claim 1, wherein a bottom positioning block for positioning the crane underframe in the up-down direction is further arranged on the workbench.
3. The welding and positioning device for the crane underframe as recited in claim 1 or 2, wherein a horizontal nut is fixed on the pressing column, and the pressing device comprises a horizontal lead screw which forms a lead screw nut mechanism with the horizontal nut.
4. The welding and positioning device for the crane underframe as recited in claim 3, wherein a lateral pressing member is further arranged between one end of the horizontal lead screw for pressing the crane underframe and the crane underframe.
5. The crane underframe welding and positioning device according to claim 1 or 2, wherein the top pressing piece is a pressing bar.
6. The crane underframe welding and positioning device according to claim 5, wherein a vertical nut is fixed on the support beam, and a vertical lead screw forming a lead screw nut mechanism with the vertical nut is fixedly connected on the pressing bar.
7. The crane underframe welding and positioning device according to claim 6, wherein two vertical lead screws are provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869979.4U CN210413209U (en) | 2019-06-11 | 2019-06-11 | Crane underframe welding positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920869979.4U CN210413209U (en) | 2019-06-11 | 2019-06-11 | Crane underframe welding positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210413209U true CN210413209U (en) | 2020-04-28 |
Family
ID=70374572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920869979.4U Expired - Fee Related CN210413209U (en) | 2019-06-11 | 2019-06-11 | Crane underframe welding positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210413209U (en) |
-
2019
- 2019-06-11 CN CN201920869979.4U patent/CN210413209U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |