CN223406021U - Floating claw for rapidly replacing specification during petroleum pipe thread machining - Google Patents
Floating claw for rapidly replacing specification during petroleum pipe thread machiningInfo
- Publication number
- CN223406021U CN223406021U CN202521837160.1U CN202521837160U CN223406021U CN 223406021 U CN223406021 U CN 223406021U CN 202521837160 U CN202521837160 U CN 202521837160U CN 223406021 U CN223406021 U CN 223406021U
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- Prior art keywords
- jaw
- hole
- base
- metal cylinder
- chuck
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
本实用新型属于石油管加工专用装备技术领域，涉及一种用于石油管螺纹加工时快速更换规格的浮动卡爪，包括卡盘，卡盘外侧开设有三个T形滑槽，T形滑槽内滑动连接有T形滑块，T形滑块的端面开设有紧固螺孔；本实用新型通过多工位卡爪、夹持弧、基爪板、安装槽和销轴等之间的相互配合，能够实现在加工不同型号的石油管时，可以通过转动多工位卡爪选择与石油管相匹配的夹持弧，通过不同尺寸的夹持弧能够适用于更多型号的石油管，这样更换石油管型号时，不需要拆卸卡爪也可以对石油管夹持，有效的解决了卡爪更换时间较长的问题，此外因为夹持弧呈弧形设置，所以能够增加夹持石油管的面积，从而避免出现将石油管夹伤的问题。
The utility model belongs to the technical field of special equipment for processing oil pipes, and relates to a floating clamping jaw for quickly changing specifications when processing oil pipe threads, comprising a chuck, three T-shaped sliding grooves being provided on the outer side of the chuck, a T-shaped sliding block being slidably connected in the T-shaped sliding groove, and a fastening screw hole being provided on the end surface of the T-shaped sliding block; the utility model can realize, when processing oil pipes of different types, the clamping arc that matches the oil pipe can be selected by rotating the multi-station clamping jaw, and the clamping arcs of different sizes can be applied to more types of oil pipes. In this way, when the type of oil pipe is changed, the oil pipe can be clamped without disassembling the clamping jaws, effectively solving the problem of long jaw replacement time; in addition, because the clamping arc is arranged in an arc shape, the area for clamping the oil pipe can be increased, thereby avoiding the problem of clamping the oil pipe.
Description
Technical Field
The utility model belongs to the technical field of special equipment for petroleum pipe machining, and relates to a floating claw for quickly changing specifications during petroleum pipe thread machining.
Background
In the field of petroleum pipe thread processing, the claw is used as the core component for clamping the petroleum pipe, the structural design of the claw directly influences the processing efficiency and the workpiece quality, currently, the claw is universally used for clamping by adopting a pneumatic chuck in the industry, the claw is connected with a claw seat through a T-shaped nut, the T-shaped nut is required to be embedded into a T-shaped groove of the claw seat during assembly, and then the claw is fixed with the T-shaped nut through a bolt, although the connection structure can meet basic clamping requirements, the connection structure has obvious limitations in a specification conversion scene, when petroleum pipes with different diameters and wall thicknesses are processed, the claw and the T-shaped nut are required to be disassembled firstly, then the T-shaped nut is extracted from the claw seat groove, the whole set of replacement process is completed by at least 2 operators in a matched manner, the replacement time of a single set of claw is long, and for the production line which is required to process petroleum pipes with dozens of specifications every day, frequent specification conversion can lead to serious compression of effective processing time of equipment.
Meanwhile, the existing pneumatic chuck clamping jaw mostly adopts an integral hard jaw design, the rigidity performance is excellent, but a petroleum pipe is used as a typical thin-wall tubular workpiece, the high-rigidity clamping jaw is easy to generate the following problems during clamping, when the clamping jaw is in contact with the outer circle of an oil pipe, clamping force can be concentrated on a local contact point, if the clamping force is improperly controlled, radial deformation of the oil pipe is extremely easy to occur, the deformation not only can cause the subsequent thread processing to generate dimensional deviation, but also can form stress concentration on the inner wall of the oil pipe, and hidden danger of fatigue fracture in the buried use process is likely to occur. Some manufacturers try to optimize the clamping force manually to reduce deformation, but the method relies on experience of operators, has poor stability and further reduces production efficiency.
Disclosure of utility model
The utility model aims to solve the technical problems that the single-group claw has long replacement time, for a production line which is required to process petroleum pipes with tens of specifications every day, the effective processing time of equipment is seriously compressed due to frequent specification conversion, the existing pneumatic chuck claws are mostly designed by adopting integral hard claws, the rigidity performance is excellent, but the petroleum pipe is used as a typical thin-wall tubular workpiece, the high-rigidity claw is easy to generate the following problems when being clamped, when the claw is contacted with the excircle of an oil pipe, the clamping force is concentrated on a local contact point, and if the clamping force is controlled improperly, the radial deformation of the oil pipe is extremely easy to occur.
The utility model discloses a floating claw for quickly replacing specifications during petroleum pipe thread processing, which comprises a chuck, wherein three T-shaped sliding grooves are formed in the outer side of the chuck, T-shaped sliding blocks are connected in a sliding manner in the T-shaped sliding grooves, and fastening screw holes are formed in the end faces of the T-shaped sliding blocks;
The base claw assembly is located on the end face of the chuck and comprises three base claw plates, and the base claw assembly further comprises a positioning mechanism which is matched with the base claw assembly.
Preferably, the base claw assembly comprises a multi-station claw, a clamping arc, a rectangular groove and a mounting groove, wherein the mounting groove is formed in one side, opposite to the center of the chuck, of the base claw plate, the multi-station claw is arranged on the inner side of the mounting groove, the clamping arc which is uniformly distributed is formed in the outer side of the multi-station claw, and the rectangular groove is formed in the inner side of the clamping arc.
Preferably, the base claw assembly further comprises a claw hole, a base claw hole, a bushing, a pin shaft and a groove, wherein the claw hole is formed in the position, close to the center, of the end face of the multi-station claw, the base claw hole is formed in the end face of the base claw plate, the bushing is arranged on the inner side of the claw hole, the pin shaft is arranged on the inner side of the bushing, the two ends of the pin shaft extend into the base claw hole, and the groove is formed in the position, away from the multi-station claw, of the end portion of the pin shaft.
Preferably, the positioning mechanism comprises a positioning hole, an internal threaded hole, a metal cylinder, a wrench plane and external threads, wherein the internal threaded hole is formed in the end face, far away from the chuck, of the base jaw plate, the internal threaded hole is communicated with the inside of the mounting groove, the metal cylinder is arranged on the inner side of the internal threaded hole, the external threads are formed in the position, close to the base jaw plate, of the end portion of the metal cylinder, the external threads are matched with the internal threaded hole, and the wrench plane is formed in the end portion of the metal cylinder.
Preferably, the positioning mechanism further comprises a positioning pin, steps, hanging holes, springs and pull rings, the positioning pin is arranged on the inner side of the metal cylinder, the bottom end of the positioning pin extends into the positioning hole, the end portion of the positioning pin is close to the multi-station clamping jaw, the steps are fixedly connected with the end portion of the positioning pin, the springs are sleeved on the end portion of the positioning pin, the two ends of the springs are respectively in contact with the metal cylinder and the steps, one end, far away from the metal cylinder, of the positioning pin penetrates through the metal cylinder and is in sliding connection with the metal cylinder, the hanging holes are symmetrically formed in the position, far away from the metal cylinder, of the end portion of the positioning pin, and the pull rings are arranged between the two hanging holes.
Further, a screw hole is formed in one side, opposite to the center of the chuck, of the base jaw plate, the screw hole is communicated with the inside of the base jaw hole, a set screw is mounted on the inner side of the screw hole, and one end of the set screw extends into the groove and is abutted to the inner side of the groove.
Further, two screw holes are formed in the end face, far away from the chuck, of the base claw plate, bolts are arranged in the screw holes, and one ends of the bolts extend into the fastening screw holes and are matched with the fastening screw holes.
Compared with the prior art, the utility model has the beneficial effects that:
1. Through mutually supporting between multistation jack catch, centre gripping arc, base claw board, mounting groove and the round pin axle etc. can realize when processing the petroleum pipe of different models, can select the centre gripping arc that matches with the petroleum pipe through rotating multistation jack catch, can be applicable to the petroleum pipe of more models through the centre gripping arc of different sizes, when changing the petroleum pipe model like this, need not dismantle the jack catch also can be to the centre gripping of petroleum pipe, the longer problem of jack catch change time has been effectually solved, in addition because the centre gripping arc is the arc setting, so can increase the area of centre gripping petroleum pipe, thereby avoid appearing the problem of damaging the petroleum pipe clamp;
2. Through mutually supporting between locating hole, metal cylinder, locating pin, spring, pull ring and the internal thread hole etc. can realize that the locating pin can be fixed the multistation jack catch when inserting the locating hole for can not appear pivoted phenomenon in the processing of multistation jack catch, play spacing effect to the multistation jack catch, and when needing to change the centre gripping arc pulling pull ring drive the locating pin break away from the locating hole can, effectually improved the stability of use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the exploded construction of the base jaw assembly of the present utility model;
FIG. 3 is a schematic perspective view of a base jaw assembly of the present utility model;
FIG. 4 is a schematic view of another view of the base jaw assembly of the present utility model;
FIG. 5 is a schematic cross-sectional view of a base jaw assembly of the present utility model;
FIG. 6 is a schematic view of the structure of the T-shaped slider of the present utility model;
Fig. 7 is a schematic view of the structure of the locating pin in the present utility model.
The clamping device comprises a multi-station clamping jaw, a clamping arc, a rectangular groove, a 103, a positioning hole, a 104, a clamping jaw hole, a 2, a set screw, a3, a pin shaft, a 301, a groove, a 4, a bushing, a 5, a spring, a 6, a metal cylinder, a 601, a spanner plane, a 602, an external thread, a 7, a positioning pin, a 701, a step, a 702, a hanging hole, a 8, a base jaw plate, a 801, a screw hole, a 802, an internal thread hole, a 803, a mounting groove, a 804, a base jaw hole, a 805, a thread hole, a 9, a pull ring, a 10, a bolt, a 11, a fastening screw hole, a 12, a T-shaped sliding block, a 13, a chuck, a 14 and a T-shaped sliding groove.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It should be noted that, under the condition of no conflict, the embodiments of the present utility model and the features and technical solutions in the embodiments may be combined with each other.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The clamping chuck comprises a clamping chuck 13, three T-shaped sliding grooves 14 are formed in the outer side of the clamping chuck 13, a T-shaped sliding block 12 is connected in a sliding mode in the T-shaped sliding grooves 14, fastening screw holes 11 are formed in the end face of the T-shaped sliding block 12, a base claw assembly is located on the end face of the clamping chuck 13 and comprises a base claw plate 8, three base claw plates 8 are arranged, and a positioning mechanism is matched with the base claw assembly.
As shown in fig. 1-5, the base jaw assembly comprises a multi-station jaw 1, a clamping arc 101, a rectangular groove 102 and a mounting groove 803, wherein the mounting groove 803 is formed in one side, opposite to the center of a chuck 13, of a base jaw plate 8, the multi-station jaw 1 is arranged on the inner side of the mounting groove 803, the clamping arc 101 which is uniformly distributed is formed in the outer side of the multi-station jaw 1, the rectangular groove 102 is formed in the inner side of the clamping arc 101, the base jaw assembly further comprises a jaw hole 104, a base jaw hole 804, a bushing 4, a pin shaft 3 and a groove 301, the jaw hole 104 is formed in the position, close to the center, of the end face of the multi-station jaw 1, the base jaw plate 8 is provided with the base jaw hole 804, two ends of the pin shaft 3 extend into the base jaw hole 804, the groove 301 is formed in the position, opposite to the center of the chuck 13, the end of the pin shaft 3 is far away from the multi-station jaw 1, a groove 301 is formed in the position, a wire hole 805 is formed in one side, opposite to the center of the base jaw plate 8, the chuck 13 is communicated with the inner side of the base jaw hole 804, a screw hole 805 is provided with a fixing 2, one end of the fixing screw 2 extends into the groove 301 and abuts against the inner side of the groove 301, the groove hole 301, the end face of the base jaw plate 8 is close to the screw hole 11 is far from the inner side 10, and is far from the end face of the base jaw plate 11 is provided with 10, and is far from the screw hole 801, and is arranged in the bolt 801, and is far from the bolt hole 11.
As shown in fig. 2-3, the positioning mechanism comprises a positioning hole 103, an internal threaded hole 802, a metal cylinder 6, a spanner plane 601 and external threads 602, the end face of a base claw plate 8, far away from a chuck 13, is provided with the internal threaded hole 802, the internal threaded hole 802 is communicated with the inside of a mounting groove 803, the inner side of the internal threaded hole 802 is provided with the metal cylinder 6, the end part of the metal cylinder 6, close to the base claw plate 8, is provided with the external threads 602, the external threads 602 are matched with the internal threaded hole 802, the end part of the metal cylinder 6 is provided with the spanner plane 601, the positioning mechanism further comprises a positioning pin 7, a step 701, a hanging hole 702, a spring 5 and a pull ring 9, the inner side of the metal cylinder 6 is provided with the positioning pin 7, the bottom end of the positioning pin 7 extends into the positioning hole 103, the end part of the positioning pin 7 is close to the jaw 1 and is fixedly connected with the step 701, the end part of the positioning pin 7 is sleeved with the spring 5, two ends of the spring 5 are respectively contacted with the metal cylinder 6 and the step 701, one end, far away from the metal cylinder 6, penetrates through the metal cylinder 6 and is in sliding connection with the metal cylinder 6, the end part of the positioning pin 7 is far away from the metal cylinder 6, the position of the metal cylinder 6 is symmetrically provided with the hanging hole 702, the hanging hole 702 is arranged, the hanging hole 702 is arranged, the two positions of the hanging hole 9 are fixedly arranged, and the positioning hole is arranged between the two positions are respectively.
The multistation jack catch 1 in this technical scheme is equipped with a plurality of centre gripping arcs 101, and its size is 4.5 cun, 5.0 cun, 5.5 cun, 6.0 cun, 7.0 cun respectively, also can set up the number and the circular arc size of centre gripping arc 101 according to actual conditions, in addition, when installing multistation jack catch 1, need use round pin axle 3 to insert between jack catch hole 104 and the base jaw hole 804, then use holding screw 2 to install in screw hole 805, will get into in recess 301 after tightening holding screw 2, and tight conflict recess 301, make round pin axle 3 can not become flexible and drop etc. in the use, improve the stability of using.
The technical scheme is characterized in that when the multi-station claw 1 is used, firstly, a bolt 10 is placed in a screw hole 801, a fastening screw hole 11 on a T-shaped sliding block 12 is connected with the bolt 10 in a rotating mode, then the T-shaped sliding block 12 is placed in a proper position in a T-shaped sliding groove 14, then the bolt 10 is screwed, so that the position of a base claw plate 8 can be fixed on a chuck 13, then when the multi-station claw 1 is used, a proper clamping arc 101 is selected according to the type of a petroleum pipe to be processed, firstly, a positioning pin 7 is pulled through a pull ring 9 to compress a spring 5, so that the positioning pin 7 is separated from the positioning hole 103, then the multi-station claw 1 can be rotated, the clamping arc 101 with the proper size faces the center of the chuck 13, the pull ring 9 is loosened after conversion is completed, and the synchronous rebound force of the spring 5 pushes the positioning pin 7 into the positioning hole 103 to fix the integral position of the multi-station claw 1, so that the multi-station claw 1 cannot rotate during processing.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (7)
1. The floating claw for quickly replacing the specification during the screw thread processing of the petroleum pipe comprises a chuck (13) and is characterized in that three T-shaped sliding grooves (14) are formed in the outer side of the chuck (13), T-shaped sliding blocks (12) are connected in a sliding manner in the T-shaped sliding grooves (14), and fastening screw holes (11) are formed in the end faces of the T-shaped sliding blocks (12);
The base claw assembly is located on the end face of the chuck (13), the base claw assembly comprises a base claw plate (8), the base claw plate (8) is provided with three base claw assemblies, and the base claw assembly further comprises a positioning mechanism which is matched with the base claw assembly for use.
2. The floating jaw for rapidly replacing specifications during petroleum pipe thread machining according to claim 1, wherein the base jaw assembly comprises a multi-station jaw (1), a clamping arc (101), a rectangular groove (102) and a mounting groove (803), the mounting groove (803) is formed in one side, opposite to the center of the chuck (13), of the base jaw plate (8), the multi-station jaw (1) is arranged on the inner side of the mounting groove (803), uniformly distributed clamping arcs (101) are formed in the outer side of the multi-station jaw (1), and rectangular grooves (102) are formed in the inner side of the clamping arc (101).
3. The floating jaw for rapidly replacing specifications during petroleum pipe thread machining according to claim 2, wherein the base jaw assembly further comprises a jaw hole (104), a base jaw hole (804), a bushing (4), a pin shaft (3) and a groove (301), the jaw hole (104) is formed in the position, close to the center, of the end face of the multi-station jaw (1), the base jaw hole (804) is formed in the end face of the base jaw plate (8), the bushing (4) is arranged on the inner side of the jaw hole (104), the pin shaft (3) is arranged on the inner side of the bushing (4), two ends of the pin shaft (3) extend into the base jaw hole (804), and the groove (301) is formed in the position, far away from the multi-station jaw (1), of the end portion of the pin shaft (3).
4. The floating jaw for quick replacement of specifications during petroleum pipe thread machining according to claim 2, wherein the positioning mechanism comprises a positioning hole (103), an inner threaded hole (802), a metal cylinder (6), a wrench plane (601) and an outer thread (602), the inner threaded hole (802) is formed in the end face, far away from the chuck (13), of the base jaw plate (8), the inner threaded hole (802) is communicated with the inside of the mounting groove (803), the metal cylinder (6) is arranged on the inner side of the inner threaded hole (802), the outer thread (602) is arranged at the position, close to the base jaw plate (8), of the end portion of the metal cylinder (6), the outer thread (602) is matched with the inner threaded hole (802), and the wrench plane (601) is arranged at the end portion of the metal cylinder (6).
5. The floating jaw for quick replacement of specifications during petroleum pipe thread processing according to claim 4, wherein the positioning mechanism further comprises a positioning pin (7), a step (701), a hanging hole (702), a spring (5) and a pull ring (9), the positioning pin (7) is arranged on the inner side of the metal cylinder (6), the bottom end of the positioning pin (7) extends into the positioning hole (103), the step (701) is fixedly connected to the position, close to the multi-station jaw (1), of the end of the positioning pin (7), the spring (5) is sleeved on the end of the positioning pin (7), two ends of the spring (5) are respectively contacted with the metal cylinder (6) and the step (701), one end, far away from the metal cylinder (6), of the positioning pin (7) penetrates through the metal cylinder (6) and is in sliding connection with the metal cylinder (6), the hanging hole (702) is symmetrically arranged at the position, far away from the metal cylinder (6), and the pull ring (9) is arranged between the two hanging holes (702).
6. A floating jaw for quick replacement of specifications during petroleum pipe threading is characterized in that a screw hole (805) is formed in one side, opposite to the center of a chuck (13), of a base jaw plate (8), the screw hole (805) is communicated with the inside of a base jaw hole (804), a set screw (2) is mounted on the inner side of the screw hole (805), and one end of the set screw (2) extends into a groove (301) and is abutted against the inner side of the groove (301).
7. The floating jaw for rapid replacement of specifications during petroleum pipe threading according to claim 1, wherein two screw holes (801) are formed in the end face, far away from the chuck (13), of the base jaw plate (8), bolts (10) are arranged in the screw holes (801), and one ends of the bolts (10) extend into and are matched with the fastening screw holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202521837160.1U CN223406021U (en) | 2025-08-28 | 2025-08-28 | Floating claw for rapidly replacing specification during petroleum pipe thread machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202521837160.1U CN223406021U (en) | 2025-08-28 | 2025-08-28 | Floating claw for rapidly replacing specification during petroleum pipe thread machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223406021U true CN223406021U (en) | 2025-10-03 |
Family
ID=97203482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202521837160.1U Active CN223406021U (en) | 2025-08-28 | 2025-08-28 | Floating claw for rapidly replacing specification during petroleum pipe thread machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223406021U (en) |
-
2025
- 2025-08-28 CN CN202521837160.1U patent/CN223406021U/en active Active
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