CN109454251B - Jack catch mechanism for structural part shape adjustment - Google Patents
Jack catch mechanism for structural part shape adjustment Download PDFInfo
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- CN109454251B CN109454251B CN201811526479.7A CN201811526479A CN109454251B CN 109454251 B CN109454251 B CN 109454251B CN 201811526479 A CN201811526479 A CN 201811526479A CN 109454251 B CN109454251 B CN 109454251B
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- clamping
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- jaw
- jaws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a jaw mechanism for adjusting the shape of a structural part, which comprises a jaw-outlet outer cylinder body and at least one group of jaws; two clamping jaws in each group are symmetrically and rotatably arranged on two sides of the front end of the clamping jaw outer cylinder body, a clamping shaft is arranged in the clamping jaw outer cylinder body, one end of the clamping shaft is connected with a telescopic mechanism, the other end of the clamping shaft is connected with a grabbing part positioned between the clamping jaws on two sides, the clamping shaft is stretched through the telescopic motion of the telescopic mechanism, and the stretching clamping shaft stretches and draws the clamping jaws on two sides; and a clamping shaft front limiting plate is further arranged in the clamping claw outlet outer cylinder body and used for limiting the clamping claws in a furled state. The original mode of punching or additionally punching a process hole on the workpiece is utilized to realize pushing and pulling, and two shape adjusting functions of one mechanism are realized.
Description
Technical Field
The utility model belongs to jack catch mechanism, concretely relates to jack catch mechanism is used in structure accent shape.
Background
The workpiece generally deforms after being welded, and when the deformation is large, the workpiece needs to be subjected to shape adjusting treatment. In view of the different deformation directions, the workpiece needs to be externally supported or internally pressed during shape adjustment. The outer support shape adjusting mechanism cannot be put in when the size of the inner gear of the workpiece is small, so that the shape adjustment cannot be carried out. Therefore, the clamping claw mechanism is designed, and the opening on the workpiece can be utilized to push and pull the workpiece simultaneously so as to achieve the purpose of shape adjustment. In addition, considering that the sizes of the openings of the workpieces needing to be shaped are different, in order to avoid frequently replacing the clamping jaws, the clamping jaw mechanisms are compatible with the hole diameter within a certain range. Moreover, as the shape-adjusting claw is stressed greatly, the size of the hole diameter limits the size of the claw structure, so the claw structure needs to be designed specially. For example, heavy-duty creep-working turntables and the rear tail of the turntables have the conditions that the workpieces are various in types, large in size difference, various in opening size, and the shape adjustment sometimes needs internal bracing and sometimes needs external pressure.
The existing shape adjusting equipment is generally divided into an inner supporting part and an outer pressing part, the outer pressing part generally has no problem in design and function realization, and the inner supporting part is often stranded aiming at some workpieces due to factors such as the size of the workpieces, the size of an opening, the requirement of mechanical strength and the like.
Disclosure of Invention
According to prior art's not enough, the utility model provides a jack catch mechanism is used in structure accent shape utilizes the original trompil of work piece or opens the mode in technology hole in addition, accomplishes to push away to draw, realizes two kinds of accent shape functions of a mechanism.
The utility model discloses realize according to following technical scheme:
a jaw mechanism for adjusting the shape of a structural part comprises a jaw outer cylinder body and at least one group of jaws; two clamping jaws in each group are symmetrically and rotatably arranged on two sides of the front end of the clamping jaw outer cylinder body, a clamping shaft is arranged in the clamping jaw outer cylinder body, one end of the clamping shaft is connected with a telescopic mechanism, the other end of the clamping shaft is connected with a grabbing part positioned between the clamping jaws on two sides, the clamping shaft is stretched through the telescopic motion of the telescopic mechanism, and the stretching clamping shaft stretches and draws the clamping jaws on two sides; and a clamping shaft front limiting plate is further arranged in the clamping claw outlet outer cylinder body and used for limiting the clamping claws in a furled state.
Furthermore, the bottom of the clamping jaw is provided with a positioning shaft hole, and the clamping jaw is arranged on the clamping jaw outer cylinder body through the clamping jaw shaft.
Furthermore, the bottom of the clamping jaw is provided with a limiting protrusion, and the limiting protrusion faces the inside of the outer cylinder body of the clamping jaw; when the clamping jaws on the two sides are in a furled state, the limiting protrusions in the clamping jaws extend out of the through holes of the front limiting plate of the clamping shaft by a preset length so as to push the clamping jaws to rotate around the clamping jaw shafts to realize the opening of the clamping jaws after the clamping shafts penetrate out of the front limiting plate of the clamping shaft and touch the limiting protrusions; when the clamping jaws on the two sides are in an open state, the clamping jaw is pushed to rotate around the clamping jaw shaft after the clamping jaw is touched by the clamping jaw part, so that the clamping jaws are folded.
Furthermore, the clamping shaft consists of a shaft I and a shaft II; wherein the bottom of the shaft I is connected with the telescopic mechanism, and the top of the shaft II is connected with the grabbing part; the width of the section area of the shaft II is smaller than that of the section area of the shaft I, so that the top surface of the shaft II can touch the clamping jaws on two sides, and the rotation of the clamping jaws is realized.
Furthermore, the shaft I is a square column body and is used for realizing the line contact between the clamping jaw and the clamping shaft.
Furthermore, the telescopic mechanism is an oil cylinder, the cylinder body of the oil cylinder is connected with the oil cylinder mounting seat, and the connecting rod of the oil cylinder is connected with the clamping shaft.
Furthermore, a clamping shaft rear limiting plate is further arranged in the claw-out outer cylinder body and used for supporting the clamping shaft.
Furthermore, the grabbing part is a grabbing flange, and the grabbing flange touches the claws at two sides to fold the claws.
Furthermore, a forward pushing flange is arranged on the circumferential surface of the outer wall of the outer cylinder body of the out clamping claw.
Further, the number of the clamping jaws is four, and every two clamping jaws form a group.
The utility model discloses beneficial effect:
the utility model provides an among the traditional shape adjusting equipment, the shape adjusting part structure of internal stay is huge can not be applicable to the little work piece such as the opening span is little and transfers the shape. The design of the clamping jaw limiting protrusions, the design of the clamping shaft of the square cylinder body, the design of the clamping jaw mirror symmetry arrangement and other ingenious designs are adopted, the size of the compression structure is minimized on the premise that the structural strength is guaranteed, and the punching machine can be flexibly suitable for punching holes of different specifications on workpieces.
After the functions of shape-adjusting internal bracing and external pressure are combined on one mechanism, more space can be saved for other functional designs, so that the equipment can clamp and position different workpieces more flexibly and conveniently. Meanwhile, the combination of the functions also enables the design and control of the electric appliance to be more concise and convenient.
Drawings
FIG. 1 is a sectional view of a jaw mechanism for adjusting the shape of a structural member of the present invention;
FIG. 2 is a perspective view of the clamping jaw of the present invention;
FIG. 3 is a front view of the clamping jaw of the present invention;
fig. 4 is a front view of the positioning shaft of the present invention;
FIG. 5 is a view of the working form of the jaw mechanism for shape adjustment of the structural member of the present invention;
FIG. 6 is a continuous state diagram of the jaw mechanism for adjusting the shape of the structural member of the present invention;
fig. 6a is a diagram showing the jaws in an open state, fig. 6b is a diagram showing the jaw withdrawing flange contacting the jaws, fig. 6c is a diagram showing the jaws in a rotating state, and fig. 6d is a diagram showing the jaws in a closed state.
1-claw, 2-claw shaft, 3-grabbing flange, 4-clamping shaft front limiting plate, 5-clamping shaft, 6-clamping shaft rear limiting plate, 7-oil cylinder, 8-oil cylinder mounting seat, 9-claw outer cylinder body, 10-forward pushing flange, 11-limiting convex inner side surface, 12-limiting convex, 13-limiting convex outer side surface and 14-positioning shaft hole.
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1, a jaw mechanism for shaping a structural member comprises an outer jaw cylinder 9 and at least one group of jaws 1; two claws 1 in each group are symmetrically and rotatably arranged on two sides of the front end of an outer claw cylinder body 9, a clamping shaft 5 is arranged in the outer claw cylinder body 9, one end of the clamping shaft 5 is connected with a telescopic mechanism, the other end of the clamping shaft 5 is connected with a grabbing part positioned between the claws 1 on two sides, the stretching of the clamping shaft 5 is realized through the stretching motion of the telescopic mechanism, and the stretching and retracting of the claws 1 on two sides are realized through the telescopic clamping shaft 5; a clamping shaft front limiting plate 4 is also arranged in the clamping claw outer cylinder body 9 and used for limiting the clamping claws 1 in a furled state.
A preferred embodiment of the above embodiment is given below with respect to the jaws:
as shown in fig. 2 and 3, the bottom of the jaw 1 is provided with a limit protrusion 12, and the limit protrusion 12 faces the inside of the jaw outer cylinder 9; when the clamping jaws 1 on the two sides are in a folded state, the limiting protrusions 12 in the clamping jaws 1 extend out of the through holes of the clamping shaft front limiting plate 4 by a preset length, so that the clamping shafts 5 penetrate out of the clamping shaft front limiting plate 4 and then touch the limiting protrusions 12 to push the clamping jaws 1 to rotate around the clamping jaw shafts 2 to realize the opening of the clamping jaws 1; when the clamping jaws 1 on the two sides are in an open state, the clamping jaw 1 is pushed to rotate around the clamping jaw shaft 2 after the clamping jaw 1 touches the limiting protrusion 12, so that the clamping jaws 1 are folded.
In the further scheme of the implementation, the bottom of the jaw 1 is provided with a positioning shaft hole 14 which is arranged on the jaw outlet outer cylinder body 9 through the jaw shaft 2.
It should be noted that the jaw 1 is provided with a limit protrusion 12, the opening and closing of the jaw 1 is realized by pushing the limit protrusion 12, and the compatible range of different apertures can be adjusted by adjusting the length of the jaw 1. When the telescopic part extends forwards, the clamping shaft 5 is pushed to move forwards, the front end face of the clamping shaft 5 pushes the limiting convex outer side face 13, and the clamping jaw 1 rotates around the clamping jaw shaft 2 and opens. When the clamping jaw 1 is opened to be in a horizontal state, the clamping jaw is blocked and limited by the front end face of the outer cylinder body, the outer side face 13 of the limiting protrusion is tightly attached to one face of the clamping shaft 5, and the position of the clamping jaw 1 is completely limited and cannot rotate.
A preferred embodiment of the above embodiment about the capture axis is given below:
as shown in fig. 4, the clamping shaft 5 is composed of a shaft i and a shaft ii; wherein the bottom of the shaft I is connected with the telescopic mechanism, and the top of the shaft II is connected with the grabbing part; the width of the section area of the shaft II is smaller than that of the section area of the shaft I, so that the top surface of the shaft II can touch the clamping jaws 1 on the two sides, and the rotation of the clamping jaws 1 is realized.
In a further scheme of the implementation, the shaft I is a square column body, and the shaft I is designed to be the square column body in consideration of the strength and stress of the structure. When the shaft I is a cylinder, the limiting convex outer side surface 13 of the clamping jaw 1 is only in point contact with the clamping shaft 5, and the structure is easily deformed when the stress is too large. When the clamping shaft 5 is a square cylinder, the limiting convex outer side surface 13 in the clamping jaw 1 is in line contact with the clamping shaft 5, so that the stress area is greatly increased relative to the cylindrical clamping shaft, and the anti-structural deformation capability is stronger.
The preferable scheme in the above embodiment: with continued reference to fig. 1, the telescopic mechanism is an oil cylinder 7, the cylinder body of the oil cylinder 7 is connected with an oil cylinder mounting seat 8, and the connecting rod of the oil cylinder 7 is connected with the clamping shaft 5.
A clamping shaft rear limiting plate 6 is also arranged in the clamping claw outer cylinder body 9 and used for supporting the clamping shaft 5.
The grabbing part is a grabbing flange 3, and the grabbing flange 3 touches the claws 1 at two sides to fold the claws 1.
The outer wall peripheral surface of the claw-out outer cylinder body 9 is provided with a forward-pushing flange 10.
As shown in fig. 5, when adjusting the shape of the workpiece, depending on the deformation direction of the workpiece, the integral mechanism B may need to move, the outer edge of the workpiece adjustment hole is pushed by the forward flange 10 to adjust the shape, and the integral mechanism a may need to move, and the outer edge of the workpiece adjustment hole is pulled by the claw 1 to adjust the shape. When the mechanism A moves outwards to draw and shape, the workpiece can give an acting force opposite to the direction A to the clamping jaw 1, and the acting force can be converted into a pushing force towards the clamping jaw shaft 5 in the direction C through the action of the clamping jaw shaft 2. The mechanism is designed into four claws 1, and every two claws 1 are arranged in a group in a mirror image mode by taking the central axis of the mechanism as a symmetrical line. Thrust C and D that two mirror image position jack catchs 1 produced to screens axle 5 are two counter forces, and these two power play the effect of offsetting each other to the moment of torsion that spacing axle produced, because work piece structure and deformation direction inequality etc. factor, C and D can not the size the same, can not offset completely, still reduced the moment of torsion that screens axle 5 received greatly still, reduced the requirement to structural strength, the mechanism can be designed littleer compacter.
Fig. 6 shows a state that the jaws are in an open state in fig. 6a, a state that the gripping flange contacts the jaws in fig. 6b, a state that the jaws rotate in fig. 6c, and a state that the jaws are in a closed state in fig. 6 d.
When the oil cylinder rod retracts to drive the clamping shaft 5 to retract together, the clamping shaft 5 is separated from the contact with the outer side surface 13 of the limiting protrusion, and the limiting effect on the clamping jaw 1 is relieved. When the clamping shaft 5 continues to retract, the jaw 1 can be pushed to rotate around the jaw shaft 2 to fold the jaw 1 after the jaw folding flange 3 contacts the limiting protrusion 12. Finally, the claw 1 is in a furled state and can not act under the common limiting action of the limiting plate 4 and the grabbing flange 3 in front of the clamping shaft.
Conversely, when the oil cylinder rod extends to drive the clamping shaft 5 to extend together, the retractable claw flange 3 is separated from the inner side surface 11 of the limiting protrusion, and the limiting effect on the claw 1 is relieved. When the clamping shaft 5 continues to extend forwards, the front end face of the clamping shaft 5 contacts the limiting protrusion 12, and then the clamping jaw 1 is pushed to rotate around the clamping shaft 5 to realize the opening of the clamping jaw. Finally, the claw 1 is in an opening state and can not act under the common limiting action of the clamping shaft 5 and the front end surface of the outer cylinder body.
To sum up, the utility model provides an in traditional accent shape equipment, the interior propping is transferred shape partial structure is huge can not be applicable to the little work piece of opening span height etc. and is transferred the shape. The design of the clamping jaw limiting protrusions, the design of the clamping shaft of the square cylinder body, the design of the clamping jaw mirror symmetry arrangement and other ingenious designs are adopted, the size of the compression structure is minimized on the premise that the structural strength is guaranteed, and the punching machine can be flexibly suitable for punching holes of different specifications on workpieces. After the functions of shape-adjusting internal bracing and external pressure are combined on one mechanism, more space can be saved for other functional designs, so that the equipment can clamp and position different workpieces more flexibly and conveniently. Meanwhile, the combination of the functions also enables the design and control of the electric appliance to be more concise and convenient.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (9)
1. The utility model provides a jaw mechanism for the profile modification of structure spare which characterized in that: comprises a jaw-out outer cylinder body and at least one group of jaws;
two clamping jaws in each group are symmetrically and rotatably arranged on two sides of the front end of the clamping jaw outer cylinder body, a clamping shaft is arranged in the clamping jaw outer cylinder body, one end of the clamping shaft is connected with a telescopic mechanism, the other end of the clamping shaft is connected with a grabbing part positioned between the clamping jaws on two sides, the clamping shaft is stretched through the telescopic motion of the telescopic mechanism, and the stretching clamping shaft stretches and draws the clamping jaws on two sides;
a clamping shaft front limiting plate is further arranged in the clamping claw outlet outer cylinder body and used for limiting the clamping claws in a folded state;
the bottom of the clamping jaw is provided with a limiting protrusion, and the limiting protrusion faces the inside of the outer cylinder body of the clamping jaw;
when the clamping jaws on the two sides are in a furled state, the limiting protrusions in the clamping jaws extend out of the through holes of the front limiting plate of the clamping shaft by a preset length so as to push the clamping jaws to rotate around the clamping jaw shafts to realize the opening of the clamping jaws after the clamping shafts penetrate out of the front limiting plate of the clamping shaft and touch the limiting protrusions;
when the clamping jaws on the two sides are in an open state, the clamping jaw is pushed to rotate around the clamping jaw shaft after the clamping jaw is touched by the clamping jaw part, so that the clamping jaws are folded.
2. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: the bottom of the clamping jaw is provided with a positioning shaft hole, and the clamping jaw is arranged on the clamping jaw outer cylinder body through the clamping jaw shaft.
3. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: the clamping shaft consists of a shaft I and a shaft II; wherein the bottom of the shaft I is connected with the telescopic mechanism, and the top of the shaft II is connected with the grabbing part;
the width of the section area of the shaft II is smaller than that of the section area of the shaft I, so that the top surface of the shaft II can touch the clamping jaws on two sides, and the rotation of the clamping jaws is realized.
4. A jaw mechanism for structural member shape adjustment according to claim 3, wherein: the shaft I is a square column body and is used for realizing line contact between the clamping jaw and the clamping shaft.
5. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: the telescopic mechanism is an oil cylinder, a cylinder body of the oil cylinder is connected with an oil cylinder mounting seat, and a connecting rod of the oil cylinder is connected with the clamping shaft.
6. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: and a clamping shaft rear limiting plate is further arranged in the clamping claw outer cylinder body and used for supporting the clamping shaft.
7. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: the grabbing part is a grabbing flange, and the grabbing jaws are folded by touching the claws at two sides through the grabbing flange.
8. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: and the circumferential surface of the outer wall of the outer cylinder body of the clamping jaw is provided with a forward pushing flange.
9. The jaw mechanism for structural member shape adjustment according to claim 1, wherein: the jack catch quantity is four, and every two jack catches are a set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526479.7A CN109454251B (en) | 2018-12-13 | 2018-12-13 | Jack catch mechanism for structural part shape adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526479.7A CN109454251B (en) | 2018-12-13 | 2018-12-13 | Jack catch mechanism for structural part shape adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109454251A CN109454251A (en) | 2019-03-12 |
| CN109454251B true CN109454251B (en) | 2020-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811526479.7A Active CN109454251B (en) | 2018-12-13 | 2018-12-13 | Jack catch mechanism for structural part shape adjustment |
Country Status (1)
| Country | Link |
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| CN (1) | CN109454251B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251662A (en) * | 1975-10-22 | 1977-04-25 | Tokico Ltd | Gripping device |
| US4819527A (en) * | 1987-11-23 | 1989-04-11 | Emerson Electric Co. | Threading machine chuck |
| CN200970770Y (en) * | 2006-11-22 | 2007-11-07 | 于复生 | Pneumatic manipulator claw |
| CN103009163A (en) * | 2013-01-15 | 2013-04-03 | 烟台海德机床有限公司 | Self-tightening type centering drive plate |
| CN106956285A (en) * | 2017-05-04 | 2017-07-18 | 支新华 | One kind operation automatic manipulator |
| CN107856029B (en) * | 2017-11-29 | 2021-08-10 | 长春工业大学 | Electro-hydraulic hybrid driving industrial mechanical arm structure and control system |
| CN108526504A (en) * | 2018-05-24 | 2018-09-14 | 昆明理工大学 | A kind of flexible chuck for not hindering surface |
-
2018
- 2018-12-13 CN CN201811526479.7A patent/CN109454251B/en active Active
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| Publication number | Publication date |
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| CN109454251A (en) | 2019-03-12 |
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Address after: 221000 east side of Keji Road, Xuzhou Economic and Technological Development Zone, Jiangsu Province Patentee after: JIANGSU XUGONG INFORMATION TECHNOLOGY Co.,Ltd. Address before: No. 6, Drum Tower District, Jiangsu Province, Xuzhou City, Jiangsu Patentee before: JIANGSU XUGONG INFORMATION TECHNOLOGY Co.,Ltd. |
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Address after: 221000 No. 6, Keji Road, Xuzhou Economic and Technological Development Zone, Xuzhou City, Jiangsu Province Patentee after: XCMG Hanyun Technology Co.,Ltd. Address before: 221000 east side of Keji Road, Xuzhou Economic and Technological Development Zone, Jiangsu Province Patentee before: JIANGSU XUGONG INFORMATION TECHNOLOGY Co.,Ltd. |