CN210232301U - Positioning tool for machining bearing seat base of climbing frame of tower crane - Google Patents
Positioning tool for machining bearing seat base of climbing frame of tower crane Download PDFInfo
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- CN210232301U CN210232301U CN201921317696.5U CN201921317696U CN210232301U CN 210232301 U CN210232301 U CN 210232301U CN 201921317696 U CN201921317696 U CN 201921317696U CN 210232301 U CN210232301 U CN 210232301U
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Abstract
The utility model discloses a positioning tool for machining a bearing seat base of a tower crane climbing frame, which comprises a clamping base plate, a positioning mechanism and a clamping mechanism, wherein a fixed column clamped by a three-jaw chuck is fixed at one end of the clamping base plate, and an arc-shaped positioning plate is arranged on the top surface of the clamping base plate; the excircle of the bearing seat is used for positioning, so that the position tolerance of the center hole of the bearing seat and the base can be ensured after the bearing seat is machined.
Description
Technical Field
The utility model relates to a tower machine parts machining equipment field, concretely relates to location frock of tower machine climbing frame bearing base processing.
Background
The climbing frame is mainly used for a hoisting mechanism part of a tower crane, when hoisting is carried out, a winding drum is mainly pulled by a motor to rotate to wind and unreel a hoisting rope, the winding drum is fixed on a bearing seat, and when the bearing seat is machined, the position tolerance of a central hole of the bearing seat and a base needs to be ensured, so that the matching relation between parts can be ensured when the parts are assembled;
the existing bearing seat machining tool is mainly used for positioning through a center hole of a bearing seat and then machining a base of the bearing seat, and in the existing bearing machining process, because the precision of the center hole of the bearing seat is higher, if the center hole of the bearing seat is used for positioning, the center hole of the bearing seat is required to be machined in the final machining process, so that the position tolerance of the base and the center hole has larger error, and the bearing seat can not be assembled by other parts in the process of part assembly.
Meanwhile, different tools are needed for the bearing blocks of different types, so that the tools need to be replaced when other types of bearing blocks are machined, and the manufacturing cost is increased (the cost is that different tools are needed for machining different types of bearing blocks, and the cost of the tools is increased).
Disclosure of Invention
Not enough to above-mentioned prior art, the utility model provides a location frock of tower machine frame bearing base processing that climbs is convenient for guarantee the position tolerance of bearing frame centre bore and base man-hour, the hou mian assembly process of the bearing frame of being convenient for can also be applicable to the bearing frame processing of multiple different grade type simultaneously, reduces the cost of processing like this.
In order to achieve the above purpose, the utility model discloses a scheme: a positioning tool for machining a bearing seat base of a climbing frame of a tower crane comprises a clamping base plate, a positioning mechanism and a clamping mechanism, wherein a fixed column clamped by a three-jaw chuck is fixed at one end of the clamping base plate; still set up positioning mechanism and be located one side that the fixed column was kept away from to the clamping foundatin plate on the clamping foundatin plate, positioning mechanism includes splint, accommodate the lead screw and guide rail, it has twice sliding tray and twice sliding tray symmetry about the arc locating plate to open on the clamping foundatin plate, be fixed with fore-and-aft guide rail at every sliding tray internal fixation, it has linear bearing to embolia on every guide rail, be fixed with splint on every linear bearing, it has accommodate the lead screw and accommodate the lead screw is located the below of every splint to pass at the clamping foundatin plate, accommodate the lead screw is two-way lead screw, embolia threaded sleeve at accommodate the lead screw both ends, every splint downwardly extending and fixed with the threaded sleeve that corresponds.
Preferably, the inboard of arc locating plate can fix the regulation arc of multiple different radiuses and adjust the arc and be connected for dismantling with the arc locating plate.
Preferably, the outer side of each adjusting arc-shaped plate is hinged with a tensioning screw rod, the arc-shaped positioning plate is provided with a through hole matched with the tensioning screw rod, a tensioning nut is sleeved on the tensioning screw rod, and supporting blocks with different sizes are arranged between each adjusting arc-shaped plate and the arc-shaped positioning plate.
Preferably, a pressing screw rod is fixed above each clamping plate, a pressing block is sleeved on the pressing screw rod, and a pressing nut is sleeved on the top of the pressing screw rod.
Compared with the prior art, the utility model has the advantages of: 1. the excircle of the bearing seat is used for positioning, so that the position tolerance of the central hole of the bearing seat and the base can be ensured after the bearing seat is machined; 2. different types of bearing seats can be machined by replacing the adjusting arc-shaped plate; 3. be provided with the compact heap on splint, can prevent that the bearing frame from taking place to shake and influencing the machining precision in the one end that clamping mechanism was kept away from to the bearing frame when processing.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a top view of the present invention.
FIG. 3 is a schematic view of the pressing plate of the present invention
Fig. 4 is a cross-sectional view of the positioning mechanism of the present invention.
Fig. 5 is a partial view of the splint of the present invention.
Fig. 6 is the utility model discloses adjust the cooperation schematic diagram of arc and arc locating plate.
Fig. 7 is a schematic view of the present invention mounted on a lathe.
The clamping device comprises a base plate 1, a clamping base plate 1.1, a fixing column 1.2, an arc-shaped positioning plate 1.21, a through hole 1.3, an adjusting arc-shaped plate 1.31, a tensioning screw rod 1.32, a tensioning nut 1.33, a supporting block 2, a positioning mechanism 2.1, a clamping plate 2.11, a pressing screw rod 2.12, a pressing nut 2.13, a pressing block 2.2, an adjusting screw rod 2.3, a threaded sleeve 2.4, a guide track 2.5, a linear bearing 2.6, a sliding groove 3, a clamping mechanism 3.1, a clamping screw rod 3.2, a fastening nut 3.3 and a pressing disc.
Detailed Description
The present invention will now be further elucidated with reference to the accompanying drawings.
As shown in figures 1-7, a positioning tool for machining a bearing seat base of a climbing frame of a tower crane comprises a clamping base plate 1, a positioning mechanism 2 and a clamping mechanism 3, wherein one end of the clamping base plate 1 is fixedly provided with a fixed column 1.1 clamped by a three-jaw chuck in a welding mode or an integrated molding mode, the clamping base plate 1 is fixedly arranged on the three-jaw chuck of a lathe through the fixed column 1.1, thus the workpiece is machined by driving the workpiece to rotate through the three-jaw chuck, an arc-shaped positioning plate 1.2 (namely a semi-circular positioning plate) is fixedly arranged on the top surface of the clamping base plate 1 in a welding mode, the inner side of the arc-shaped positioning plate 1.2 can fix various adjusting arc-shaped plates 1.3 with different radiuses, the radius of the inner side of each adjusting arc-shaped plate 1.3 is different in size, a tensioning screw rod 1.31 is hinged on the outer side of each adjusting arc-shaped plate 1.3, a through hole 1.21 matched with the tensioning screw rod 1.31 is arranged on, the tensioning screw 1.31 is sleeved with the tensioning nut 1.32, the tensioning nut 1.32 is positioned on the outer side of the arc positioning plate 1.2, the adjusting arc plate 1.3 is fixed on the arc positioning plate 1.2 through the tensioning nut 1.32 and the tensioning screw 1.31, supporting blocks 1.33 with different sizes are arranged between each adjusting arc plate 1.3 and the arc positioning plate 1.2, the supporting blocks 1.33 are fixed on the outer side of the adjusting arc plate 1.3 in a welding mode, the supporting blocks 1.33 are also arc plates and the outer sides of the supporting blocks 1.33 are tightly attached to the inner sides of the arc positioning plate 1.2, the thickness of the supporting blocks 1.33 is the difference between the outer radius of the adjusting arc plate 1.3 and the inner radius of the arc positioning plate 1.2, when different types of bearings are processed, the positioning of the bearings is realized by replacing the adjusting arc plates 1.3 with different radii, thus the cost can be reduced, certainly, the utility model can not process all types of bearing seats, and is only suitable for several types of bearing seats, if other types of bearing seats need to be processed, only the adjusting arc-shaped plates 1.3 with different radiuses need to be processed; a clamping mechanism 3 is fixed on the top surface of the clamping base plate 1 in a welding mode, the clamping mechanism 3 is positioned on the circle center of the arc-shaped positioning plate 1.2, the clamping mechanism 3 comprises a clamping screw rod 3.1, a fastening nut 3.2 and a pressing plate 3.3, one end of the clamping screw rod 3.1 is fixed on the clamping base plate 1 in a welding mode, the clamping screw rod 3.1 is positioned on the circle center of the arc-shaped adjusting plate, the other end of the clamping screw rod 3.1 is sleeved with a fastening nut 3.2 matched with the clamping screw rod 3.1, the pressing plate 3.3 is sleeved on the clamping screw rod 3.1 below the fastening nut 3.2, a notch for the clamping screw rod 3.1 to pass through is formed in the pressing plate 3.3, the notch of the pressing plate 3.3 is aligned to the clamping screw rod 3.1 after the bearing seat is positioned, the pressing plate 3.3 is moved, the pressing plate 3.3 is placed below the fastening nut 3.2, the pressing plate 3.3 is pressed through the fastening nut 3.2, and the pressing plate 3.3 is pressed on, therefore, the bearing seat can be placed to jump in the machining process; the clamping base plate 1 is also provided with a positioning mechanism 2, the positioning mechanism 2 is positioned on one side of the clamping base plate 1 far away from the fixed column 1.1, the positioning mechanism 2 comprises a clamping plate 2.1, an adjusting screw rod 2.2 and a guide rail 2.4, the clamping base plate 1 is provided with two sliding grooves 2.6, the two sliding grooves 2.6 are symmetrical about the symmetry line of the arc-shaped positioning plate 1.2, a longitudinal guide rail 2.4 (namely a guide rod) is fixed in each sliding groove 2.6 in a welding manner, a linear bearing 2.5 is sleeved on each guide rail 2.4, the linear bearing 2.5 slides on the guide rail 2.4, the clamping plate 2.1 is fixed on each linear bearing 2.5 in a welding manner, the clamping base plate 1 is penetrated by the adjusting screw rod 2.2 (the two ends of the adjusting screw rod 2.2 are fixed on the clamping base plate 1 through bearings), the adjusting screw rod 2.2 is positioned below each clamping plate 2.1, the adjusting screw rod 2.2 is formed by two-way opposite threads (the two-way screw rods are welded, the threaded sleeves 2.3 sleeved on the bidirectional screw rod are firstly mutually closed or are separated in a back-to-back manner when the screw rod rotates, so that a bearing seat can be clamped, the threaded sleeves 2.3 are sleeved at two ends of the adjusting screw rod 2.2, each clamping plate 2.1 extends downwards and is mutually fixed with the corresponding threaded sleeve 2.3 in a welding manner, a vertical compression screw rod 2.11 is fixed above each clamping plate 2.1 in a welding manner, a compression block 2.13 is sleeved on each compression screw rod 2.11 and slides on the compression screw rod 2.11, a compression nut 2.12 is sleeved at the top of the compression screw rod 2.11, the compression block 2.13 is compressed through a compression bolt, and the compression block 2.13 is compressed on a supporting seat of the bearing seat, so that the situation that when the supporting seat is processed, one end of the bearing seat is far away from the clamping mechanism 3 to generate shaking, and serious processing errors can be generated.
When in use, the bearing seat is formed by welding the circular ring and the supporting seat, the outer circle of the circular ring is finely processed between welding, when the outer circle of the circular ring is processed, the inner circle of the circular ring is used for positioning, the adjusting arc-shaped plate 1.3 is replaced according to the type of the bearing seat to be processed, the adjusting arc-shaped plate 1.3 is fixed on the arc-shaped positioning plate 1.2 through the tensioning screw rod 1.31, then the outer circle of the circular ring part of the bearing seat is clung to the inner side of the adjusting arc-shaped plate 1.3, meanwhile, the top cylinder of the lathe is propped against the base of the bearing seat, so that the bearing seat cannot shake left and right during processing, meanwhile, the adjusting screw rod 2.2 is rotated to enable the two clamping plates 2.1 to be close to each other to position the bearing seat, thus, the bearing seat cannot shake up and down during processing, the position tolerance of the base of the bearing seat and the central hole can be, the secondary treatment is not needed, so that the progress of the bearing seat is ensured, the pressing block 2.13 is pressed on the seat body of the bearing seat before processing, the workpiece can jump due to overlarge torque, the pressing block 2.13 is additionally arranged on the seat body, the torque can be reduced in a limited way, and the workpiece jump can be reduced to a great extent; in the positioning process, the two clamping plates 2.1 perform synchronous motion through the same adjusting screw rod 2.2, so that the precision of the bearing seat in the clamping process is high.
Claims (4)
1. A positioning tool for machining a bearing seat base of a climbing frame of a tower crane comprises a clamping base plate, a positioning mechanism and a clamping mechanism, wherein a fixed column clamped by a three-jaw chuck is fixed at one end of the clamping base plate; still set up positioning mechanism and be located one side that the fixed column was kept away from to the clamping foundatin plate on the clamping foundatin plate, positioning mechanism includes splint, accommodate the lead screw and guide rail, it has twice sliding tray and twice sliding tray symmetry about the arc locating plate to open on the clamping foundatin plate, be fixed with fore-and-aft guide rail at every sliding tray internal fixation, it has linear bearing to embolia on every guide rail, be fixed with splint on every linear bearing, it has accommodate the lead screw and accommodate the lead screw is located the below of every splint to pass at the clamping foundatin plate, accommodate the lead screw is two-way lead screw, embolia threaded sleeve at accommodate the lead screw both ends, every splint downwardly extending and fixed with the threaded sleeve that corresponds.
2. The positioning tool for machining the bearing seat base of the climbing frame of the tower crane according to claim 1, wherein the inner side of the arc positioning plate can fix a plurality of adjusting arc plates with different radiuses, and the adjusting arc plates are detachably connected with the arc positioning plate.
3. The positioning tool for machining the bearing seat base of the climbing frame of the tower crane according to claim 2, wherein a tensioning screw rod is hinged to the outer side of each adjusting arc-shaped plate, a through hole matched with the tensioning screw rod is formed in each arc-shaped positioning plate, a tensioning nut is sleeved on each tensioning screw rod, and supporting blocks with different sizes are arranged between each adjusting arc-shaped plate and each arc-shaped positioning plate.
4. The positioning tool for machining the bearing seat base of the climbing frame of the tower crane according to claim 3, wherein a compression screw rod is fixed above each clamping plate, a compression block is sleeved on the compression screw rod, and a compression nut is sleeved on the top of the compression screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921317696.5U CN210232301U (en) | 2019-08-14 | 2019-08-14 | Positioning tool for machining bearing seat base of climbing frame of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921317696.5U CN210232301U (en) | 2019-08-14 | 2019-08-14 | Positioning tool for machining bearing seat base of climbing frame of tower crane |
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| CN210232301U true CN210232301U (en) | 2020-04-03 |
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| CN201921317696.5U Active CN210232301U (en) | 2019-08-14 | 2019-08-14 | Positioning tool for machining bearing seat base of climbing frame of tower crane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879503A (en) * | 2020-06-13 | 2020-11-03 | 临澧金华天机械制造有限公司 | Tower crane jib loading boom performance detection device |
| CN114101745A (en) * | 2021-12-20 | 2022-03-01 | 江苏金润智能装备有限公司 | Automatic solar steel pipe punching device and using method thereof |
-
2019
- 2019-08-14 CN CN201921317696.5U patent/CN210232301U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879503A (en) * | 2020-06-13 | 2020-11-03 | 临澧金华天机械制造有限公司 | Tower crane jib loading boom performance detection device |
| CN111879503B (en) * | 2020-06-13 | 2022-02-22 | 临澧金华天机械制造有限公司 | Tower crane jib loading boom performance detection device |
| CN114101745A (en) * | 2021-12-20 | 2022-03-01 | 江苏金润智能装备有限公司 | Automatic solar steel pipe punching device and using method thereof |
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