Clamping device is used in a kind of welding of central portionTechnical field:
The utility model relates to technical field of welding equipment, clamping machine is used in more specifically to a kind of central portion weldingStructure.
Background technique:
When existing two central portions are welded, generally requires and be manually well placed the two, preferably manually by itIt is fixed, then welded, welding trouble, and if be manually not fixed, and being easy sliding influences welding effect, and it is manually solidFixed very troublesome, efficiency is very low.
Utility model content:
The purpose of the utility model is to solve the deficiencies of the prior art, and provides a kind of central portion welding clamping machineStructure, upper fixed block to be welded and circular slab to be welded fixed pressing automatically can be facilitated human weld, high-efficient, effect by itFruit is good, is suitble to produce in enormous quantities.
The technology solution of the utility model is as follows:
A kind of central portion welding clamping device, including rack, the top surface of the top plate of the rack are fixed with supportFrame, the middle top surface of the top plate of rack are fixed with lower supporting plate, have rounded projections in the middle part of the top surface of lower supporting plate, to be weldedCircular slab is pressed against on the top surface of rounded projections, and the left and right two side walls of lower supporting plate are respectively and fixedly provided with supporting block, supporting blockGripper cylinder is fixed on lateral wall, the push rod of gripper cylinder passes through supporting block and is fixed with compression arc block, circle to be weldedPlate is clamped between two compression arc blocks；
The middle part bottom surface of the top plate of the upper support frame is fixed with mobile supporting block, and there are three the bottom surface tools of mobile supporting blockSlot is slid laterally, upper fixed block to be welded is pressed against on the top surface of circular slab to be welded, three sectorial blocks composition circular blocks, and threeThe edge of sectorial block forms arcuate extensions, and holding sheet, the bottom of three sectorial blocks are fixed on the inner sidewall of arcuate extensionsFace is fixed with self-lubricating elastic clamping block, and self-lubricating elastic clamping block is pressed against on the top surface of upper fixed block to be welded, holding sheetBe pressed against on the side wall of upper fixed block to be welded, the bottom surface of the top plate of upper support frame is fixed there are three vertical plate, sectorial block it is outerSide wall is fixed with guide rod, in the guide through hole that guide rod sleeve has on corresponding vertical plate, on the inner sidewall of vertical plateIt is fixed with buffer spring, the end of buffer spring is fixed with side arc compression block, and side arc compression block is pressed against corresponding sectorial blockOn lateral wall, the small truncated cone-shaped of the side groove composition big upper diameter of base diameter formed on the inner sidewall of three sectorial blocksThrough-hole, for truncated cone-shaped block sleeve in truncated cone-shaped through-hole, the top surface of truncated cone-shaped block is fixed with vertical lifting swivel nut, vertical lifting swivel nutIn be bolted with vertical screw rod, the middle top surface of the top plate of upper support frame is fixed with adjusting motor, and the output shaft for adjusting motor passes throughThe bottom surface of the top plate of upper support frame is simultaneously connected with vertical screw rod by shaft coupling.
The top surface of the sectorial block is fixed with gib block, and gib block sleeve slides laterally in slot corresponding.
Side gib block is formed on the lateral wall of the vertical lifting swivel nut, vertical lifting swivel nut sleeve is in mobile supporting blockMiddle part have in the through-hole, in the interior guide groove that side gib block sleeve has on the inner sidewall through through-hole.
The bottom surface for compressing arc block is fixed with bottom movable block, bottom movable block sleeve the top surface of lower supporting plate atIn the guide groove that type has.
Clamping protective layer is fixed on the inner sidewall for compressing arc block, clamping protective layer is pressed against circular slab to be weldedLateral wall on.
The push rod upper sleeve of the gripper cylinder has flexible radiation fins, and one end of flexible radiation fins is fixed on compression arc blockLateral wall on, the other end of flexible radiation fins is fixed on the side wall of supporting block.
The utility model has the beneficial effects that:
Upper fixed block to be welded and circular slab to be welded fixed pressing automatically can be facilitated human weld, efficiency by itHeight, effect is good, is suitble to produce in enormous quantities.
Detailed description of the invention:
Fig. 1 is the partial structural diagram of the utility model；
Fig. 2 is the partial top view of three sectorial blocks of the utility model；
Fig. 3 is the partial enlarged view of Fig. 1.
Specific embodiment:
Embodiment: as shown in Fig. 1 to Fig. 3, a kind of central portion welding clamping device, including rack 10, the rackThe top surface of 10 top plate is fixed with upper support frame 11, and the middle top surface of the top plate of rack 10 is fixed with lower supporting plate 12, lower supportThere are rounded projections 121 in the middle part of the top surface of plate 12, circular slab 100 to be welded is pressed against on the top surface of rounded projections 121, underThe left and right two side walls of support plate 12 are respectively and fixedly provided with supporting block 13, and gripper cylinder 14 is fixed on the lateral wall of supporting block 13, folderThe push rod for holding cylinder 14, which passes through supporting block 13 and is fixed with, compresses arc block 15, and circular slab 100 to be welded is clamped in two compressionsBetween arc block 15；
The middle part bottom surface of the top plate of the upper support frame 11 is fixed with mobile supporting block 17, the bottom surface tool of mobile supporting block 17There are three slot 171 is slid laterally, upper fixed block 200 to be welded is pressed against on the top surface of circular slab 100 to be welded, three sectorial blocks18 composition circular blocks, the edge of three sectorial blocks 18 form arcuate extensions 181, consolidate on the inner sidewall of arcuate extensions 181Surely there is holding sheet 182, the bottom surface of three sectorial blocks 18 is fixed with self-lubricating elastic clamping block 183, self-lubricating elastic clamping block 183It is pressed against on the top surface of upper fixed block 200 to be welded, holding sheet 182 is pressed against on the side wall of upper fixed block 200 to be welded, upper branchThe bottom surface of the top plate of support 11 is fixed there are three vertical plate 19, and the lateral wall of sectorial block 18 is fixed with guide rod 184, guide rodIn the guide through hole that 184 sleeves have on corresponding vertical plate 19, buffer spring is fixed on the inner sidewall of vertical plate 19191, the end of buffer spring 191 is fixed with side arc compression block 192, and side arc compression block 192 is pressed against corresponding sectorial block 18On lateral wall, the small rotary table of the side groove composition big upper diameter of base diameter formed on the inner sidewall of three sectorial blocks 18Shape through-hole 185, for 20 sleeve of truncated cone-shaped block in truncated cone-shaped through-hole 185, the top surface of truncated cone-shaped block 20 is fixed with vertical lifting swivel nut21, vertical screw rod 22 is bolted in vertical lifting swivel nut 21, and the middle top surface of the top plate of upper support frame 11 is fixed with adjusting motor23, the output shaft of adjusting motor 23 passes through the bottom surface of the top plate of upper support frame 11 and is connected with vertical screw rod 22 by shaft coupling.
Further, the top surface of the sectorial block 18 is fixed with gib block 186, and 186 sleeve of gib block is in corresponding crossInto sliding groove 171.
Further, side gib block 24, vertical lifting swivel nut are formed on the lateral wall of the vertical lifting swivel nut 2121 sleeves run through in through-hole what the middle part of mobile supporting block 17 had, and gib block 24 sleeve in side is on the inner sidewall through through-holeIn the interior guide groove having.
Further, the bottom surface for compressing arc block 15 is fixed with bottom movable block 151, and bottom movable block 151 is insertedIt covers in the guide groove that the top surface of lower supporting plate 12 forms.
Further, it is fixed with clamping protective layer 152 on the inner sidewall for compressing arc block 15, clamps protective layer152 are pressed against on the lateral wall of circular slab 100 to be welded.
Further, the push rod upper sleeve of the gripper cylinder 14 has flexible radiation fins 1, the one end for the radiation fins 1 that stretchesIt is fixed on the lateral wall for compressing arc block 15, the other end of flexible radiation fins 1 is fixed on the side wall of supporting block 13.
Wherein the elastic force of buffer spring 191 is less than the power that truncated cone-shaped block 20 pushes sectorial block 18.
When the present embodiment is in use, circular slab 100 to be welded is pressed against on the top surface of rounded projections 121, it will be to be weldedIt connects fixed block 200 to be pressed against on the top surface of circular slab 100 to be welded, self-lubricating elastic clamping block 183 is pressed against on to be weldedOn the top surface of fixed block 200, then, pushed by the push rod of gripper cylinder 14, so that circular slab to be welded 100 is clamped in twoIt compresses between arc block 15, and is run by adjusting motor 23, so that truncated cone-shaped block 20 declines, pass through returning for buffer spring 191Bullet effect, so that three sectorial blocks 18 are mutually close, so that holding sheet 182 is pressed against the side wall of upper fixed block 200 to be weldedOn, complete fix, then, can human weld's upper fixed block 200 to be welded be mutually pressed against with the lateral wall of circular slab 100 to be weldedPlace, convenient welding, firm grip, effect are good.