CN211052878U - Pneumatic chuck with double linkage mechanisms - Google Patents
Pneumatic chuck with double linkage mechanisms Download PDFInfo
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- CN211052878U CN211052878U CN201921660856.6U CN201921660856U CN211052878U CN 211052878 U CN211052878 U CN 211052878U CN 201921660856 U CN201921660856 U CN 201921660856U CN 211052878 U CN211052878 U CN 211052878U
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- guide plate
- deflector
- clamping
- pneumatic chuck
- guide pillar
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Abstract
The utility model discloses a pneumatic chuck with two link gear, including back card base, gas circuit sliding ring mechanism is installed to back card base one end, back card base is provided with hollow structure, gas circuit sliding ring mechanism is located back card base one end and installs guide pillar mechanism, guide pillar mechanism runs through the hollow structure of back card base, be fixed with the cylinder subassembly in the guide pillar mechanism, install first deflector and second deflector in the guide pillar mechanism, the cylinder subassembly comprises four cylinders, and four cylinder evenly distributed are in the guide pillar mechanism outside, and two bisymmetry the spindle nose of cylinder is connected with first deflector and second deflector respectively, first deflector and second deflector all are connected with the centre gripping jack catch through slider-crank mechanism. The utility model discloses, utilize four cylinders as the power supply, trun into the axial motion of cylinder to radial motion, shorten jack catch length, prevent jack catch overlength and the skew phenomenon that appears.
Description
Technical Field
The utility model relates to a chuck technical field specifically is a pneumatic chuck with two link gear.
Background
The laser pipe cutting machine can be used for processing workpieces with central symmetry sections such as round pipes, square pipes, I-shaped steel and channel steel, and is very important for clamping the workpieces, the laser pipe cutting machine must be compatible with all symmetrical workpieces and meet the clamping function, and the stability of workpiece clamping force, the clamping precision and the like are very important. The traditional clamping method adopts an elongated clamping rear clamp, and has the bad phenomena of unstable clamping force, easy deviation, low clamping precision, durability and the like; at present, the laser pipe cutting machine industry has insufficient machining precision, the fundamental reason is caused by insufficient clamp precision, and the laser pipe cutting machine cannot reach the expected machining precision due to the fact that problems exist in the mechanical structure design.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pneumatic chuck with two link gear to solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic chuck with two link gear, includes back card base, gas circuit sliding ring mechanism is installed to back card base one end, back card base is provided with hollow structure, gas circuit sliding ring mechanism is located back card base one end and installs guide pillar mechanism, guide pillar mechanism runs through the hollow structure of back card base, be fixed with the cylinder subassembly in the guide pillar mechanism, install first deflector and second deflector in the guide pillar mechanism, the cylinder subassembly comprises four cylinders, and four cylinders evenly distributed are in the guide pillar mechanism outside, and two bisymmetry the spindle nose of cylinder is connected with first deflector and second deflector respectively, first deflector and second deflector all are connected with the centre gripping jack catch through slider-crank mechanism.
Preferably, the clamping jaws and the crank block mechanism are fixed through bolts, and the contact surfaces of the clamping jaws and the crank block mechanism are sawtooth surfaces.
Preferably, the clamping surfaces of the clamping jaws are arranged in a sawtooth structure.
Preferably, the air channel slip ring mechanism comprises a rotating structure inside, two air inlets are formed in the outer side of the air channel slip ring mechanism, and two air outlets of the air channel slip ring mechanism extend into the hollow structure of the rear clamping base.
Preferably, the air channel slip ring mechanism and the rear clamp base are fixed through bolts.
Preferably, the first guide plate and the second guide plate are both provided with linear bearings, and the first guide plate and the second guide plate are both mounted on the guide post mechanism through the linear bearings.
Compared with the prior art, the beneficial effects of the utility model are that: the four cylinders are used as power sources, the axial motion of the cylinders is converted into radial motion, the length of the clamping jaw is shortened, the phenomenon of offset caused by overlong clamping jaws is prevented, and the guide mechanisms are used as guides in the transmission process of the mechanism, so that the phenomenon of decentration of the clamping jaws is prevented; the clamping jaws adopt a pairwise linkage scheme, can clamp centrosymmetric workpieces such as square circles, flat pipes and the like, has stable and reliable clamping torque, solves the problems of unstable clamping force of the clamps after being used for a long time and the like in the current market, further ensures that the chuck is durable, and has higher clamping concentricity and stability; the air is transmitted to the inner cylinder through the air channel sliding ring mechanism after external air supply, the four cylinders are arranged inside the inner cylinder, the cylinder shaft heads are fixed by the guide plates in a pairwise symmetrical mode, a pairwise clamping jaw linkage structure is formed, the guide plates are provided with the linear bearings and the guide pillar mechanisms, the guide plates push the connecting rod cranks, the connecting rod cranks drive the clamping jaws to move, a crank-slider kinematic pair is formed, transmission torque is large and stable, and clamping performance of the clamping jaws is stable and reliable.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a bottom view of the present invention.
Fig. 3 is a schematic structural view of a-a of the present invention.
Fig. 4 is a schematic view of the upper structure of fig. 3 according to the present invention.
Fig. 5 is a schematic view of a lower structure of fig. 3 according to the present invention.
Fig. 6 is the schematic structural diagram of the air channel slip ring mechanism of the present invention located at the air inlet.
In the figure: 1. a gas circuit slip ring mechanism; 2. a rear card base; 3. a cylinder assembly; 4. a first guide plate; 5. a second guide plate; 6. clamping jaws; 7. a slider-crank mechanism; 8. a hollow structure; 9. a guide post mechanism; 11. an air inlet; 12. and (5) a rotating structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.
Referring to fig. 1-6, in the embodiment of the present invention, a pneumatic chuck with dual-linkage mechanism comprises a rear chuck base 2, a gas circuit sliding ring mechanism 1 is installed at one end of the rear chuck base 2, the rear chuck base 2 is provided with a hollow structure 8, a gas circuit sliding ring mechanism 1 is installed at one end of the rear chuck base 2 and is provided with a guide pillar mechanism 9, the guide pillar mechanism 9 penetrates through the hollow structure 8 of the rear chuck base 2, a cylinder assembly 3 is fixed on the guide pillar mechanism 9, a first guide plate 4 and a second guide plate 5 are installed on the guide pillar mechanism 9, the cylinder assembly 3 is composed of four cylinders, the four cylinders are uniformly distributed outside the guide pillar mechanism 9, the spindle heads of the cylinders which are symmetric in pairs are respectively connected with the first guide plate 4 and the second guide plate 5, the first guide plate 4 and the second guide plate 5 are both connected with a clamping jaw 6 through a slider crank mechanism 7, the clamping jaw 6 and the slider crank mechanism 7 are fixed through bolts, the contact surfaces of the clamping jaws 6 and the slider-crank mechanism 7 are sawtooth surfaces, the clamping surfaces of the clamping jaws 6 are sawtooth structures, the inside of the gas circuit sliding ring mechanism 1 comprises a rotating structure 12, the outer side of the gas circuit sliding ring mechanism 1 is provided with two gas inlets 11, two gas outlets of the gas circuit sliding ring mechanism 1 extend into a hollow structure 8 of the rear clamping base 2, the gas circuit sliding ring mechanism 1 and the rear clamping base 2 are fixed through bolts, linear bearings are mounted on the first guide plate 4 and the second guide plate 5, and the first guide plate 4 and the second guide plate 5 are mounted on the guide post mechanism 9 through the linear bearings; the four cylinders are used as power sources, the axial motion of the cylinders is converted into radial motion, the length of the clamping jaw is shortened, the phenomenon of offset caused by overlong clamping jaws is prevented, and the guide mechanisms are used as guides in the transmission process of the mechanism, so that the phenomenon of decentration of the clamping jaws is prevented; the clamping jaws adopt a pairwise linkage scheme, can clamp centrosymmetric workpieces such as square circles, flat pipes and the like, has stable and reliable clamping torque, solves the problems of unstable clamping force of the clamps after being used for a long time and the like in the current market, further ensures that the chuck is durable, and has higher clamping concentricity and stability; the air cylinder is characterized in that air is fed in through external air supply, the air is transmitted to the internal air cylinder through the air channel sliding ring mechanism, four air cylinders are arranged inside the internal air cylinder, the air cylinder shaft heads are fixed by two guide plates which are symmetrically operated, two claw linkage structures are formed, linear bearings and guide pillar mechanisms 9 are installed on the first guide plate 4 and the second guide plate 5, the first guide plate 4 and the second guide plate 5 push connecting rod cranks, the connecting rod cranks drive claws to move, and accordingly crank-slider motion pairs are formed, transmission torque is large and stable, and stable and reliable claw clamping performance is guaranteed.
The utility model discloses a theory of operation is: the four cylinders are used as power sources, the axial motion of the cylinders is converted into radial motion, the length of the clamping jaw is shortened, the phenomenon of offset caused by overlong clamping jaws is prevented, and the guide mechanisms are used as guides in the transmission process of the mechanism, so that the phenomenon of decentration of the clamping jaws is prevented; the clamping jaws adopt a pairwise linkage scheme, can clamp centrosymmetric workpieces such as square circles, flat pipes and the like, has stable and reliable clamping torque, solves the problems of unstable clamping force of the clamps after being used for a long time and the like in the current market, further ensures that the chuck is durable, and has higher clamping concentricity and stability; the air cylinder is characterized in that air is fed in through external air supply, the air is transmitted to the internal air cylinder through the air channel sliding ring mechanism, four air cylinders are arranged inside the internal air cylinder, the air cylinder shaft heads are fixed by two guide plates which are symmetrically operated, two claw linkage structures are formed, linear bearings and guide pillar mechanisms 9 are installed on the first guide plate 4 and the second guide plate 5, the first guide plate 4 and the second guide plate 5 push connecting rod cranks, the connecting rod cranks drive claws to move, and accordingly crank-slider motion pairs are formed, transmission torque is large and stable, and stable and reliable claw clamping performance is guaranteed.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A pneumatic chuck with a double linkage mechanism comprises a rear chuck base (2), and is characterized in that: one end of the rear clamping base (2) is provided with a gas circuit slip ring mechanism (1), the rear clamping base (2) is provided with a hollow structure (8), a guide post mechanism (9) is arranged at one end of the air channel slip ring mechanism (1) positioned on the rear clamping base (2), the guide post mechanism (9) penetrates through the hollow structure (8) of the rear clamping base (2), a cylinder assembly (3) is fixed on the guide post mechanism (9), a first guide plate (4) and a second guide plate (5) are arranged on the guide post mechanism (9), the cylinder component (3) consists of four cylinders which are uniformly distributed at the outer side of the guide post mechanism (9), the shaft heads of the cylinders which are symmetrical in pairs are respectively connected with the first guide plate (4) and the second guide plate (5), the first guide plate (4) and the second guide plate (5) are connected with the clamping jaws (6) through a slider-crank mechanism (7).
2. A pneumatic chuck having a dual linkage according to claim 1, wherein: the clamping jaw (6) and the crank block mechanism (7) are fixed through bolts, and the contact surface of the clamping jaw (6) and the crank block mechanism (7) is a sawtooth surface.
3. A pneumatic chuck having a dual linkage according to claim 1 or 2, wherein: the clamping surfaces of the clamping jaws (6) are of a sawtooth structure.
4. A pneumatic chuck having a dual linkage according to claim 1, wherein: the gas circuit sliding ring mechanism (1) comprises a rotating structure (12) inside, two gas inlets (11) are formed in the outer side of the gas circuit sliding ring mechanism (1), and two gas outlets of the gas circuit sliding ring mechanism (1) extend into a hollow structure (8) of the rear clamping base (2).
5. A pneumatic chuck having a dual linkage according to claim 1, wherein: the air channel slip ring mechanism (1) and the rear clamping base (2) are fixed through bolts.
6. A pneumatic chuck having a dual linkage according to claim 1, wherein: and linear bearings are respectively arranged on the first guide plate (4) and the second guide plate (5), and the first guide plate (4) and the second guide plate (5) are respectively arranged on the guide post mechanism (9) through the linear bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660856.6U CN211052878U (en) | 2019-10-06 | 2019-10-06 | Pneumatic chuck with double linkage mechanisms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660856.6U CN211052878U (en) | 2019-10-06 | 2019-10-06 | Pneumatic chuck with double linkage mechanisms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211052878U true CN211052878U (en) | 2020-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921660856.6U Active CN211052878U (en) | 2019-10-06 | 2019-10-06 | Pneumatic chuck with double linkage mechanisms |
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|---|---|
| CN (1) | CN211052878U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112620786A (en) * | 2020-12-23 | 2021-04-09 | 浙江嘉泰激光科技股份有限公司 | Front end clamp structure of pipe cutting machine |
| CN112846370A (en) * | 2020-12-23 | 2021-05-28 | 浙江嘉泰激光科技股份有限公司 | Pipe clamp of pipe cutting machine |
| CN114473337A (en) * | 2022-02-11 | 2022-05-13 | 中船黄埔文冲船舶有限公司 | Pipe fitting welding device |
-
2019
- 2019-10-06 CN CN201921660856.6U patent/CN211052878U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112620786A (en) * | 2020-12-23 | 2021-04-09 | 浙江嘉泰激光科技股份有限公司 | Front end clamp structure of pipe cutting machine |
| CN112846370A (en) * | 2020-12-23 | 2021-05-28 | 浙江嘉泰激光科技股份有限公司 | Pipe clamp of pipe cutting machine |
| CN114473337A (en) * | 2022-02-11 | 2022-05-13 | 中船黄埔文冲船舶有限公司 | Pipe fitting welding device |
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