CN215845791U - A new type of wedge mechanism chuck with double stroke - Google Patents
A new type of wedge mechanism chuck with double stroke Download PDFInfo
- Publication number
- CN215845791U CN215845791U CN202122504072.8U CN202122504072U CN215845791U CN 215845791 U CN215845791 U CN 215845791U CN 202122504072 U CN202122504072 U CN 202122504072U CN 215845791 U CN215845791 U CN 215845791U
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- wedge
- clamping
- shaped mechanism
- base
- chuck
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- 210000000078 claw Anatomy 0.000 claims description 13
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005520 cutting process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model provides a novel double-stroke wedge-shaped mechanism chuck which comprises a wedge-shaped mechanism, wherein the wedge-shaped mechanism is provided with two wedge surfaces with different angles, a sliding seat can be pushed and pressed in sequence, the upper end of the sliding seat is fixedly connected with a base jaw, comb teeth are arranged outside the base jaw and can be meshed with a high jaw to clamp a workpiece, the other end of the wedge-shaped mechanism is fixed on a wedge-shaped mechanism base, the wedge-shaped mechanism base is connected with a clamping piston through threads, the clamping piston moves axially in a clamping cylinder body, the clamping cylinder body is fixed on a clamping cylinder base, and the clamping cylinder base is fixedly connected with a guide sleeve. The utility model controls the axial two-way motion of the clamping piston by controlling the oil pressure of the two oil chambers of the two-way hydraulic cylinder, and converts the axial motion of the clamping piston into the radial motion of the sliding seat by the wedge-shaped mechanism, thereby clamping the workpiece. The hydraulic power chuck changes the clamping mode that the clamping device impacts the workpiece and generates production errors in the existing cutting mode.
Description
Technical Field
The utility model relates to the technical field of machine manufacturing, in particular to a novel double-stroke wedge-shaped mechanism chuck.
Background
In recent years, the rapid development of modern manufacturing techniques has put higher demands on machine tools and their main functional components. The development level of the hydraulic power chuck which is used as a universal fixture for clamping workpieces on a numerical control machine tool directly influences the overall manufacturing precision of the numerical control machine tool. The domestic machine tool clamp mainly adopts a claw-type chuck, can be put into use on a large scale, but still has defects on partial performances.
The three-jaw hydraulic chuck becomes a mainstream clamp of a numerical control machine due to large clamping force. When a workpiece is clamped, the clamping jaws directly and quickly contact with the workpiece, so that the workpiece is easily impacted, the workpiece is deformed, and the workpiece is damaged when the workpiece is serious, and particularly, the workpiece is not favorable for processing some high-precision and thin-wall workpieces; the speed of the clamping jaws of the common three-jaw chuck is the same when clamping and loosening, so that the actions of fast forward feeding and slow clamping cannot be realized, and the working time is prolonged.
In order to solve the problems, improve the flexibility of cutting processing and reduce the production error of a clamping device to a workpiece, the utility model provides the novel double-stroke wedge-shaped mechanism chuck which is practical and efficient.
Disclosure of Invention
Aiming at the defects of the existing clamping mode, the utility model provides a novel double-stroke wedge-shaped mechanism chuck. It can adjust the functioning speed in the work process of clamping and unclamping work piece: the speed is high when the workpiece is moved forward and is low when the workpiece is clamped; the speed is slow when the workpiece is loosened, and the speed is fast when the workpiece is retreated, so that the instantaneous impact of the contact between the clamping jaw and the workpiece is reduced, and the production and processing efficiency is improved.
In order to achieve the purpose, the utility model is realized by the following technical scheme: a novel wedge mechanism chuck with double stroke, comprises a wedge mechanism, and is characterized in that: wedge mechanism is last to have the scarf of two different angles to contact with the slide successively, slides along two contact surfaces on the slide, slide top fixed connection base claw, it can press from both sides tight work piece with high claw meshing to have the broach on the base claw, wedge mechanism's the other end and wedge mechanism base fixed connection, wedge mechanism base passes through the screw thread and is connected with clamping piston, clamping piston can two-way motion in clamping cylinder body inside, clamping piston's axial motion passes through the radial motion that wedge mechanism converted into the slide, clamping cylinder body fixes on clamping cylinder base, clamping cylinder base fixed connection is in the uide bushing, the uide bushing is inside through waiting to process the work piece.
Further, the clamping cylinder body is a bidirectional hydraulic cylinder.
Further, two wedge surfaces of the wedge mechanism form an angle of 45 degrees and an angle of 15 degrees with the horizontal direction respectively.
Furthermore, the base claw adopts a matching mode of comb teeth.
Furthermore, the slide is three, and the mutual interval 120 equipartition is in the chuck terminal surface.
Further, the guide sleeve is made of 40 chromium materials.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of an end face of a chuck in accordance with the present invention;
FIG. 3 is a schematic structural view of a wedge mechanism of the present invention;
in the figure: the device comprises a clamping cylinder base 1, a clamping cylinder body 2, a clamping piston 3, a wedge-shaped mechanism base 4, a wedge-shaped mechanism 5, a base jaw 6, a sliding seat 7 and a guide sleeve 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a double-stroke chuck with a novel wedge-shaped mechanism comprises a wedge-shaped mechanism 5 and is characterized in that: wedge mechanism 5 has the scarf of two different angles to contact with slide 7 in proper order, bulldozes slide 7 along the contact surface, makes slide 7 remove according to fixed route, slide 7 is three, 120 equipartitions at intervals each other are at the terminal surface of chuck, fixed connection base claw 6 above the slide 7, base claw 6 outside has the comb tooth can cooperate and connect the high claw and use, 5 other ends fixed connection of wedge mechanism are on wedge mechanism base 4, wedge mechanism base 4 adopts threaded connection's connected mode with clamping piston 3, clamping piston 3 moves in clamping cylinder body 2 is inside, clamping cylinder body 2 is two-way pneumatic cylinder, 120 equipartitions at intervals each other are inside the chuck body, clamping cylinder body 2 is through adjusting the oil pressure of two grease chambers and then control clamping piston 3 and be axial motion in clamping cylinder body 2 is inside, wedge mechanism base 4 is fixed on uide bushing 8, the clamping cylinder body 2 is fixed on a clamping cylinder base 1, the clamping cylinder base 1 is fixed on a guide sleeve 8, and the guide sleeve 8 is hollow and passes through a workpiece to be processed.
When the clamping device is used, the clamping piston 3 is controlled to move rightwards by pressurizing the left oil chamber of the clamping cylinder body 2, so that the wedge mechanism base 4 and the wedge mechanism 5 are driven to move rightwards axially, a wedge surface at an angle of 45 degrees with the horizontal direction on the wedge mechanism 5 is firstly contacted with the sliding seat 7, when the wedge surface at the angle of 45 degrees is separated from the sliding seat 7, the wedge surface at the angle of 15 degrees with the horizontal direction is continuously contacted with the sliding seat 7, under the condition that the thrust of the clamping piston 3 is not changed, the horizontal component force on the wedge surface at the angle of 45 degrees is greater than the horizontal component force on the wedge surface at the angle of 15 degrees, so that the advancing speed of the wedge surface at the angle of 45 degrees with the horizontal direction is greater than the advancing speed of the wedge surface at the angle of 15 degrees, and the sliding seat 7 is pushed and pressed to move downwards when the wedge mechanism 5 is contacted with the sliding seat 7, so that the axial motion of the wedge mechanism 5 is converted into the radial motion of the sliding seat 7.
When a workpiece is loosened, the clamping piston 3 is controlled to move leftwards by pressurizing the right oil chamber of the clamping cylinder body 2, so that the wedge-shaped mechanism 5 and the wedge-shaped mechanism base 4 are driven to retreat, and contrary to the phenomenon, a wedge surface forming an angle of 15 degrees with the horizontal direction slowly retreats, which is reflected in that the workpiece is slowly loosened on the base claw 6 in the radial direction for an external high claw, and when the wedge surface forming an angle of 15 degrees with the horizontal direction is separated from the sliding seat 7, the wedge surface forming an angle of 45 degrees with the horizontal direction continuously retreats along the original contact surface, and the speed is higher than that of the wedge surface forming an angle of 15 degrees, so that the chuck finishes clamping and loosening the workpiece once.
To sum up, this novel power chuck has improved the performance of chuck clamping and location through the common mating reaction of pressing from both sides tight cylinder base 1, pressing from both sides tight cylinder body 2, clamping piston 3, wedge mechanism base 4, wedge mechanism 5, base claw 6, slide 7, uide bushing 8, has improved the current situation that the cutting process trade is made the flexibility poor, has production error, has greatly reduced idle stroke time.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that the scope of the present invention is not limited thereto, and those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit and scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122504072.8U CN215845791U (en) | 2021-10-18 | 2021-10-18 | A new type of wedge mechanism chuck with double stroke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122504072.8U CN215845791U (en) | 2021-10-18 | 2021-10-18 | A new type of wedge mechanism chuck with double stroke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215845791U true CN215845791U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122504072.8U Active CN215845791U (en) | 2021-10-18 | 2021-10-18 | A new type of wedge mechanism chuck with double stroke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215845791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603170A (en) * | 2022-04-25 | 2022-06-10 | 内蒙古工业大学 | A New Front-Type Hydraulic Six-Jaw Pipe Power Chuck |
-
2021
- 2021-10-18 CN CN202122504072.8U patent/CN215845791U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114603170A (en) * | 2022-04-25 | 2022-06-10 | 内蒙古工业大学 | A New Front-Type Hydraulic Six-Jaw Pipe Power Chuck |
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