CN108907569B - Multipoint balance clamping jaw for pipes - Google Patents
Multipoint balance clamping jaw for pipes Download PDFInfo
- Publication number
- CN108907569B CN108907569B CN201810923467.1A CN201810923467A CN108907569B CN 108907569 B CN108907569 B CN 108907569B CN 201810923467 A CN201810923467 A CN 201810923467A CN 108907569 B CN108907569 B CN 108907569B
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- Prior art keywords
- clamping
- main shaft
- supporting platform
- fixed main
- pipe
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- 230000006835 compression Effects 0.000 claims description 20
- 238000007906 compression Methods 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims 1
- 210000002105 tongue Anatomy 0.000 description 20
- 238000001125 extrusion Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention discloses a multipoint balance clamping jaw for a pipe, and discloses a clamping jaw which clamps the outer wall of the pipe through the matching of a plurality of clamping arms, and a rubber pad and a clamping tongue are matched to perform embedded grabbing and fixing on the pipe. The supporting platform is characterized in that the supporting platform is located at one end of a fixed main shaft and is of a circular platform structure, a small end of the supporting platform is fixedly connected with the fixed main shaft, a plurality of open grooves are formed in the edge of a large end of the supporting platform at equal angles, a circle of annular groove is formed in the edge of the large end of the supporting platform, a limiting ring is arranged on the fixed main shaft and located at the connecting position of the fixed main shaft and the supporting platform, a sliding sleeve is sleeved on the fixed main shaft and can axially slide along the fixed main shaft, a plurality of clamping arms are correspondingly arranged in the open grooves in the supporting platform and are fixed through a fixing ring, the fixing ring sequentially penetrates through mounting holes in the middle of the clamping arms and is arranged in the annular groove in the supporting platform, and the plurality of clamping.
Description
Technical Field
The invention discloses a multipoint balance clamping jaw for a pipe, relates to a clamping jaw for stably grabbing the outer wall of the pipe at multiple points when the pipe is welded and spliced, and belongs to the field of machining. In particular to a clamping jaw which clamps the outer wall of a pipe by matching a plurality of clamping arms and is used for embedding, grabbing and fixing the pipe by matching a rubber pad and a clamping tongue.
Background
At present, when machining is carried out, a pipeline needs to be built on the inner side of a machine for threading, oil circuit communication and other work, therefore, when the pipe is butted and clamped, two more pipes are needed to be butted and sealed, the pipes are usually butted and then welded, when the pipe is butted and clamped, because the pipes are round and have large extension span, the gravity of one end of a suspension can influence the joint of the connecting position, the existing clamping jaw for the pipe adopts two arc-shaped plates to surround and clamp the outer wall of the pipe, the clamping point is arranged in the middle of the pipe, one end of the pipe is connected, the other end of the pipe is suspended, one end of the suspension can swing, the stability of the clamping jaw is influenced, when clamping is carried out, the arc-shaped plates and the pipe are in surface contact, the clamping force is directly acted on the pipe, the pipe is easily extruded integrally, the pipe is deformed, and the pipe has a larger, the arc can not carry out the centre gripping completely, and pipe material when connecting, can appear circumferential deflection, and the centre gripping action can not postpone, can't loosen to the accident and react, arouses unnecessary incident.
Disclosure of Invention
In order to improve the situation, the invention provides the multi-point balance clamping jaw for the pipe, which is used for clamping the outer wall of the pipe through the matching of a plurality of clamping arms, and the rubber pad and the clamping tongue are matched for embedded grabbing and fixing the pipe.
The invention discloses a multi-point balance clamping jaw for a pipe, which is realized by the following steps: the invention relates to a multipoint balance clamping jaw for pipes, which consists of a fixed main shaft, a compression spring, a sliding sleeve, a limiting ring, a supporting platform, clamping arms, a fixed ring, a clamping sleeve, a guide rod, a driving sleeve, mounting holes, a clamping tongue and a rubber pad, wherein the supporting platform is positioned at one end of the fixed main shaft, is of a round platform structure, the small end of the supporting platform is fixedly connected with the fixed main shaft, the edge of the large end of the supporting platform is equiangularly provided with a plurality of open slots, the supporting platform is provided with a circle of annular groove along the edge of the large end, the limiting ring is arranged on the fixed main shaft and is positioned at the connecting position of the fixed main shaft and the supporting platform, the sliding sleeve is sleeved on the fixed main shaft, the sliding sleeve can axially slide along the fixed main shaft, the plurality of clamping arms are correspondingly arranged in the open slots on the supporting platform and are fixed through the fixed ring, the, the clamping arms can deflect in the open slot through the fixing ring, the two ends of each clamping arm extend to the two sides of the fixing ring respectively and are close to the middle position, the guide rods are arranged on one end of each clamping arm correspondingly and are attached to the sliding sleeves, the guide rods are elastic rods, the clamping sleeves are arranged on the sliding sleeves and are attached to the guide rods respectively, the other ends of the clamping arms are gradually increased in bending curvature towards the middle, the other ends of the clamping arms are attached to each other, the end face of the other end of each clamping arm is an inclined plane, the rubber pads are arranged on the end faces of the other ends of the clamping arms correspondingly, the rubber pads are provided with convex bucket-shaped grains, the clamping tongues are arranged on the edges of the other ends of the clamping arms correspondingly and extend from the outer side walls of the other ends of the clamping arms, the outer side walls of the clamping tongues are elliptical arcs, the short shafts are equal to the diameters of the clamping arms, the long shafts, the driving sleeve is sleeved on one end of the fixed main shaft, a connecting hole is formed in one side of the driving sleeve, the compression spring is sleeved on the fixed main shaft and located between the sliding sleeve and the driving sleeve, and two ends of the compression spring are connected with the sliding sleeve and the driving sleeve respectively.
When the clamping device is used, one end of a fixed main shaft is fixed, so that the fixed main shaft is connected with a movable cantilever, a driving sleeve is connected with an external pushing device through a connecting hole, the driving sleeve is initially positioned at one end of the fixed main shaft, the driving sleeve drives the sliding sleeve to be sleeved on the fixed main shaft through a compression spring, the sliding sleeve drives a clamping sleeve to move to one end of a guide rod, the bending point of the guide rod is close to one end, the other ends of a plurality of clamping arms are mutually folded and attached, when clamping is needed, the driving sleeve is pushed to slide along the fixed main shaft, the sliding sleeve is pushed to slide through extrusion on the compression spring, the sliding sleeve drives the clamping sleeve to move along the guide rod, so that the bending point of the guide rod moves along the guide rod, the guide rod is inwards folded, one end of the clamping arm is driven to inwards folded, the clamping arm deflects around a fixing ring, forming a state of opening to be grabbed, then placing one end of the pipe between the clamping arms, pulling the driving sleeve along the fixed main shaft in the opposite direction, moving the driving sleeve to reset the compression spring, then the sliding sleeve is pulled to slide along the fixed main shaft, the fixed main shaft drives the clamping sleeve to slide along the guide rod, so that the bending point on the guide rod gradually moves towards one end, one end of the clamping arms is expanded outwards, the other end of the clamping arms is folded inwards and is gradually attached to the surface of the pipe, the pipe is clamped by the clamping arms at multiple points, so that the pipe is fixed among the clamping arms and is clamped and fixed by the rubber pad, the pipe is clamped by the clamping tongues in an embedded manner, clamping and fixing the groove on the surface of the pipe, increasing the contact area, stabilizing the pipe, and then driving the pipe to move by the movement of the fixing main shaft;
the design of the compression spring can lead the action of the clamping arm to lag behind the driving sleeve when the clamping arm is clamped and loosened, thereby providing observation and positioning time for the grabbing and dropping of the pipe and avoiding the safety problem caused by quick clamping and loosening;
the support table is of a circular truncated cone structure, the middle position of the clamping arm and the axis of the fixed main shaft can be eccentric, a lever structure is formed, and the clamping and the opening of the clamping arm are convenient to control;
a plurality of open slots are formed in the edge of the large end of the support bracket at equal angles and can be matched with the fixing ring to fix the clamping arms, so that the clamping arms deflect in the open slots, the deflection direction of the clamping arms is limited, and the phenomenon that the clamping of a pipe is influenced due to deflection disorder among the plurality of clamping arms is avoided;
the supporting platform is provided with a circle of annular groove along the edge of a large end, and the annular groove can be matched with the fixing ring to fix the clamping arm, so that the deflection of the clamping arm is limited and the clamping arm are matched with each other to clamp;
the guide rod is an elastic rod, can slide along a gap between the clamping sleeve and the sliding sleeve, and is bent at one side of the clamping sleeve, so that the clamping arms are gathered on the outer side wall of the sliding sleeve;
the end face of the other end of the clamping arm is an inclined plane and can be attached to the outer wall of a pipe, and the pipe is clamped and fixed through the overall attachment of the rubber pad and the pipe;
the rubber pad is provided with the convex bucket-shaped grains, so that the friction force between the rubber pad and the pipe can be increased, the pipe is fixedly clamped, the bucket-shaped grains can form grooves among the grains, air during extrusion is stored, and the phenomenon that when the rubber pad is attached to the pipe wall, the air blowing attachment is not tight, and the stability of the pipe is affected is avoided;
the clamping tongue extends from the outer side wall of the other end of the clamping arm, an outward-extending bulge can be formed at the other end of the clamping arm, the pipe wall is embedded and clamped, and the pipe is fixed to avoid deflection through the matching of the plurality of clamping tongues;
the outer side wall of the clamping tongue is an elliptical arc, one end of the clamping tongue can extend out along the clamping arm to form a clamping tongue independent of the outside of the clamping arm, and point contacts are formed between the clamping tongues and the pipe to limit the pipe;
the design of the compression spring can transmit the sliding sleeve and buffer and delay the power of the driving sleeve, so that the action of the sliding sleeve lags behind the driving sleeve, the butt joint, the offset and the falling of the pipe caused by quick reaction are avoided, and the compression spring can absorb external force through the transmission of the clamping plate and the sliding sleeve when the pipe is subjected to the external force;
the purpose of multi-point clamping and fixing of the pipe is achieved.
Has the advantages that: the structure is simple, and the device is convenient and practical; secondly, the clamping stability of the pipe can be improved; thirdly, the tube falling or damage caused by the rapid reaction of the clamping arm can be avoided; and fourthly, the external force can be buffered, and the clamp arm is prevented from being loosened.
Drawings
FIG. 1 is a perspective view of a multi-point balance clamping jaw for pipes according to the present invention;
FIG. 2 is a three-dimensional structure view of a multi-point balanced clamping jaw arm for pipes according to the present invention;
FIG. 3 is a perspective view of the position of a multi-point balanced jaw arm chuck of a tubular product of the present invention, showing only the structure of the chuck;
figure 4 is a cross-sectional view of a tubular multi-point balanced jaw arm chuck of the present invention showing only the configuration of the chuck jaws.
In the drawings: wherein the parts are: the device comprises a fixed main shaft (1), a compression spring (2), a sliding sleeve (3), a limiting ring (4), a support table (5), a clamping arm (6), a fixing ring (7), a clamping sleeve (8), a guide rod (9), a driving sleeve (10), a mounting hole (11), a clamping tongue (12) and a rubber mat (13)
The specific implementation mode is as follows:
the invention discloses a multi-point balance clamping jaw for pipes, which is realized by fixing one end of a fixed main shaft (1) when in use, connecting the fixed main shaft (1) with a movable cantilever, connecting a driving sleeve (10) with an external pushing device through a connecting hole, initially, positioning the driving sleeve (10) at one end of the fixed main shaft (1), driving the sliding sleeve (3) on the fixed main shaft (1) through a compression spring (2) by the driving sleeve (10), driving a clamping sleeve (8) to move to one end of a guide rod (9) by the sliding sleeve (3), enabling a bending point of the guide rod (9) to be close to one end, mutually gathering and jointing the other ends of a plurality of clamping arms (6), pushing the driving sleeve (10) when in need of clamping, sliding the driving sleeve (10) along the fixed main shaft (1), pushing the sliding sleeve (3) to slide through the extrusion of the compression spring (2), the sliding sleeve (3) drives the clamping sleeve (8) to move along the guide rod (9), so that the bending point of the guide rod (9) moves along the guide rod (9), the guide rod (9) is inwards folded, one end of the clamping arm (6) is driven to be inwards folded, the clamping arm (6) deflects around the fixing ring (7), the other end of the clamping arm (6) is gradually opened to form an open state to be grabbed, one end of a pipe is placed between the clamping arms (6), the driving sleeve (10) is reversely pulled along the fixing main shaft (1) to move, so that the compression spring (2) is reset, the sliding sleeve (3) is pulled to slide along the fixing main shaft (1), the fixing main shaft (1) drives the clamping sleeve (8) to slide along the guide rod (9), so that the bending point on the guide rod (9) gradually moves towards one end, and one ends of the clamping arms (6) are outwards expanded, the other ends of the clamping arms (6) are folded inwards and gradually attached to the surface of the pipe, the pipe is clamped at multiple points through the clamping arms (6), so that the pipe is fixed among the clamping arms (6), is clamped and fixed through the rubber pad (13), is clamped and fixed in an embedded mode through the clamping tongues (12), clamps and fixes the groove in the surface of the pipe, increases the contact area, stabilizes the pipe, and then is driven to move through the movement of the fixing main shaft (1);
the compression spring (2) is designed to enable the action of the clamping arm (6) to lag behind the driving sleeve (10) when the clamping arm (6) is clamped and loosened, so that observation and positioning time is provided for the grabbing and dropping of the pipe, and the safety problem caused by rapid clamping and loosening is avoided;
the support table (5) is of a circular truncated cone structure, the middle position of the clamping arm (6) and the axis of the fixed main shaft (1) can be eccentric, a lever structure is formed, and the clamping and the opening of the clamping arm (6) can be conveniently controlled;
a plurality of open grooves are formed in the edge of the large end of the support bracket (5) at equal angles and can be matched with the fixing ring (7) to fix the clamping arms (6), so that the clamping arms (6) deflect in the open grooves, the deflection direction of the clamping arms (6) is limited, and the phenomenon that the clamping of a pipe is influenced due to the fact that deflection disorder occurs among the plurality of clamping arms (6) is avoided;
the supporting platform (5) is provided with a circle of annular groove along the edge of the large end, and the annular groove can be matched with the fixing ring (7) to fix the clamping arm (6), so that the deflection of the clamping arm (6) is limited and the clamping arm are matched with each other to clamp;
the guide rod (9) is an elastic rod, can slide along a gap between the clamping sleeve (8) and the sliding sleeve (3), and is bent at one side of the clamping sleeve (8), so that the clamping arms (6) are gathered on the outer side wall of the sliding sleeve (3);
the end face of the other end of the clamping arm (6) is an inclined plane and can be attached to the outer wall of a pipe, and the pipe is clamped and fixed through the overall attachment of the rubber pad (13) and the pipe;
the rubber pad (13) is provided with the convex bucket-shaped grains, so that the friction force between the rubber pad (13) and the pipe can be increased, the pipe is fixedly clamped, the bucket-shaped grains can form grooves among the grains, air during extrusion is stored, and the phenomenon that when the rubber pad (13) is attached to the pipe wall, the air blowing attachment is not tight, and the stability of the pipe is affected is avoided;
the clamping tongues (12) extend from the outer side wall of the other end of the clamping arm (6), an outward-extending bulge can be formed at the other end of the clamping arm (6), the pipe wall is embedded and clamped, and the pipe is fixed and prevented from deflecting through the matching of the clamping tongues (12);
the outer side wall of the clamping tongue (12) is an elliptical arc, one end of the clamping tongue (12) can extend out along the clamping arm (6) to form the clamping tongue (12) independent of the outside of the clamping arm (6), and point contact is formed between the clamping tongues (12) and the pipe to limit the pipe;
the design of compression spring (2) can carry out the transmission to sliding sleeve (3) to the power to drive sleeve (10) is cushioned and is postponed, makes the action of sliding sleeve (3) lag behind drive sleeve (10), avoids quick response to lead to tubular product butt joint skew to drop, and compression spring (2) when tubular product received external force, can absorb external force through the transmission of splint and sliding sleeve (3), reaches and carries out the fixed purpose of multiple spot centre gripping to tubular product.
Claims (4)
1. The utility model provides a tubular product multiple spot balanced clamping jaw, characterized by: the clamping device is composed of a fixed main shaft, a compression spring, a sliding sleeve, a limiting ring, a supporting platform, clamping arms, a fixing ring, a clamping sleeve, a guide rod, a driving sleeve, a mounting hole, a clamping tongue and a rubber pad, wherein the supporting platform is positioned at one end of the fixed main shaft, the supporting platform is of a round platform structure, the small end of the supporting platform is fixedly connected with the fixed main shaft, a plurality of open grooves are formed in the edge of the large end of the supporting platform at equal angles, a circle of annular groove is formed in the edge of the large end of the supporting platform, the limiting ring is arranged on the fixed main shaft and positioned at the connecting position of the fixed main shaft and the supporting platform, the sliding sleeve is sleeved on the fixed main shaft, the plurality of clamping arms are correspondingly arranged in the open grooves in the supporting platform and fixed through the fixing ring, the fixing ring sequentially penetrates through the mounting hole in the middle of the clamping arms and is arranged in the, and is close to the middle position, a plurality of guide rods are correspondingly arranged on one end of the clamping arm and are attached to the sliding sleeve, the clamping tongue is correspondingly arranged on the edge of the other end of the clamping arm, the clamping tongue extends from the outer side wall of the other end of the clamping arm, the guide rod is an elastic rod, the clamping sleeve is sleeved on the sliding sleeve, and are respectively jointed with a plurality of guide rods, the bending curvature of the other end of the clamping arm towards the middle part is gradually increased, the other ends of the plurality of clamping arms are mutually jointed, the end surface of the other end of the clamping arm is an inclined surface, a plurality of rubber pads are correspondingly arranged on the end surface of the other end of the clamping arm, the driving sleeve is sleeved on one end of the fixed main shaft, the compression spring is sleeved on the fixed main shaft, and is positioned between the sliding sleeve and the driving sleeve, two ends of the compression spring are respectively connected with the sliding sleeve and the driving sleeve, the compression spring can drive the sliding sleeve, and the power of the driving sleeve is buffered and delayed, so that the action of the sliding sleeve lags behind the driving sleeve.
2. The multi-point balanced clamping jaw for pipes of claim 1, wherein the sliding sleeve is axially slidable along the fixed main shaft.
3. The multi-point balanced clamping jaw for pipes of claim 1, wherein the rubber pad is provided with a convex funnel-shaped texture.
4. The multipoint balanced clamping jaw for pipes as claimed in claim 1, wherein the outer side wall of the clamping tongue is an elliptical arc, and both ends of the clamping tongue are tangentially transited to the clamping arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923467.1A CN108907569B (en) | 2018-09-14 | 2018-09-14 | Multipoint balance clamping jaw for pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810923467.1A CN108907569B (en) | 2018-09-14 | 2018-09-14 | Multipoint balance clamping jaw for pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108907569A CN108907569A (en) | 2018-11-30 |
| CN108907569B true CN108907569B (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810923467.1A Active CN108907569B (en) | 2018-09-14 | 2018-09-14 | Multipoint balance clamping jaw for pipes |
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| Country | Link |
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| CN (1) | CN108907569B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676424B (en) * | 2018-12-01 | 2023-12-12 | 中电建宁夏工程有限公司 | Sheet metal processing and transferring clamp |
| CN111633135A (en) * | 2020-06-04 | 2020-09-08 | 徐州易尚饰家装饰工程有限责任公司 | Steel pipe necking machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1426717A1 (en) * | 1987-03-25 | 1988-09-30 | Проектно-Конструкторский Технологический Институт Сельскохозяйственного Машиностроения | Clamping device |
| CN100526006C (en) * | 2006-05-18 | 2009-08-12 | 发得科技工业股份有限公司 | Balancing pilot run transmission |
| JP6275835B2 (en) * | 2014-05-28 | 2018-02-07 | 富士機械製造株式会社 | Parts mounting machine |
| CN106808489B (en) * | 2015-12-01 | 2021-06-01 | 鸿富锦精密电子(郑州)有限公司 | Clamping jaw mechanism |
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2018
- 2018-09-14 CN CN201810923467.1A patent/CN108907569B/en active Active
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| CN108907569A (en) | 2018-11-30 |
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Effective date of registration: 20231103 Address after: 221000 south 2nd floor, building 2, Xuzhou Software Park, No. 6, Software Park Road, Quanshan District, Xuzhou City, Jiangsu Province Patentee after: Xuzhou Chuangshe General Technology Industry Research Institute Co.,Ltd. Address before: 222200 No.17, Tongqu lane, Yishan Town, Guanyun County, Lianyungang City, Jiangsu Province Patentee before: Zhang Wenying |
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Effective date of registration: 20231114 Address after: Building loftc, West Greenland Business City, Hanyuan Avenue, Yunlong District, Xuzhou City, Jiangsu Province, 221000 Patentee after: XUZHOU XINNANHU TECHNOLOGY Co.,Ltd. Address before: 221000 south 2nd floor, building 2, Xuzhou Software Park, No. 6, Software Park Road, Quanshan District, Xuzhou City, Jiangsu Province Patentee before: Xuzhou Chuangshe General Technology Industry Research Institute Co.,Ltd. |