CN209737051U - collet clamp with oil cylinder - Google Patents
collet clamp with oil cylinder Download PDFInfo
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- CN209737051U CN209737051U CN201920491849.1U CN201920491849U CN209737051U CN 209737051 U CN209737051 U CN 209737051U CN 201920491849 U CN201920491849 U CN 201920491849U CN 209737051 U CN209737051 U CN 209737051U
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- collet
- collet chuck
- positioning block
- pressure sleeve
- piston
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Abstract
The utility model provides a from taking hydro-cylinder collet chuck, it includes: the collet chuck shell is provided with an inner cavity, the inner side of the shell bottom of the collet chuck shell is provided with an annular groove body communicated with the inner cavity, and the collet chuck shell is provided with a fixing structure fixed on processing equipment; the pressure sleeve is slidably arranged in the inner cavity of the collet housing, the chuck mounting end of the pressure sleeve is provided with an annular bulge, and the annular bulge is provided with a tapered channel matched with the chuck; the positioning block is arranged in the pressure sleeve and is fixed on the inner side of the shell bottom of the collet chuck shell, and the collet chuck is clamped in a groove arranged in the positioning block; and the piston is connected with the pressure sleeve and can push the pressure sleeve to slide in the collet chuck shell, and the collet chuck shell is provided with two oil passage holes which are respectively communicated with two sides of the piston. The utility model discloses a collet chuck that the design has the hydro-cylinder, the motion through hydraulic oil drive piston drives the pressure sleeve and realizes that the clamp of collet chuck loosens.
Description
Technical Field
The utility model relates to a work piece clamping field especially relates to from taking hydro-cylinder collet chuck.
Background
At present, a split type oil cylinder is mostly adopted for grabbing and clamping bar parts on metal cutting equipment, and a collet chuck is driven to clamp a workpiece in a collet chuck connection mode through a push-pull rod. The use not only increases the design and use cost, but also the push-pull rod is easy to loosen in the use process of the collet chuck, the failure rate of equipment is high, and the clamp occupies large space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a from taking hydro-cylinder collet chuck, its occupation space is little, equipment fault rate is low.
In order to achieve the above object, the utility model adopts the following technical scheme: a self-contained cylinder collet, comprising: the collet chuck shell is provided with an inner cavity, the inner side of the shell bottom of the collet chuck shell is provided with an annular groove body communicated with the inner cavity, and the collet chuck shell is provided with a fixing structure fixed on processing equipment; the pressure sleeve is slidably arranged in the inner cavity of the collet housing, the chuck mounting end of the pressure sleeve is provided with an annular bulge, and the annular bulge is provided with a tapered channel matched with the chuck; the positioning block is arranged in the pressure sleeve and is fixed on the inner side of the shell bottom of the collet chuck shell, and the collet chuck is clamped in a groove arranged in the positioning block; the piston is connected with the pressure sleeve and can push the pressure sleeve to slide in the collet chuck shell, the piston is provided with a front connecting portion located between the pressure sleeve and the positioning block, a middle portion arranged between the collet chuck shell and the positioning block and a rear portion arranged on the annular groove body, a first hydraulic oil pushing cavity for pushing the piston forwards is formed between the rear portion of the piston and the positioning block and a second hydraulic oil pushing cavity for pushing the piston backwards is formed between the middle portion of the piston and the positioning block, the collet chuck shell is provided with a first oil inlet communicated with the first hydraulic oil pushing cavity and a second oil inlet communicated with the second hydraulic oil pushing cavity, and the positioning block is provided with an oil inlet channel communicated with the second oil inlet and communicated with the second hydraulic oil pushing cavity.
The utility model discloses an in the collet chuck from taking the hydro-cylinder, be provided with between pressure sleeve and the chuck, between pressure sleeve and the locating piece and prevent changeing the mechanism, for example, prevent changeing the mechanism and for preventing changeing the screw thread round pin, should prevent changeing the mechanism and can avoid taking place relative rotation between pressure sleeve and the chuck, avoid taking place relative rotation between pressure sleeve and the locating piece simultaneously.
The utility model discloses a from taking in the hydro-cylinder collet chuck, through threaded connection between the connecting portion of piston and the pressure sleeve, this structure makes things convenient for the dismouting between piston and the pressure sleeve.
the utility model discloses a from taking in the hydro-cylinder collet chuck, be provided with first sealing washer between locating piece and the chuck.
the utility model discloses a from taking in the hydro-cylinder collet chuck, the locating piece includes: the cylinder main part, its front end is provided with chuck installation slot, the cylinder main part has the locating piece front portion with the contact of locating piece inner wall, the locating piece middle part with the inboard contact of piston connecting portion, the locating piece rear portion with the contact of piston middle part and rear portion inner wall, the locating piece rear portion is provided with the boss cooperation concave part that establishes with the collet chuck casing drain pan, the external diameter at locating piece middle part is less than the anterior external diameter of locating piece, the external diameter at locating piece rear portion is less than the external diameter that the locating.
The utility model discloses a from taking hydro-cylinder collet chuck, locating piece and collet chuck shell inner wall are formed with the motion space that a cross-section is the L type.
The utility model discloses a from taking in the hydro-cylinder collet chuck, pressure sleeve is a column barrel, and the rear portion of column barrel is provided with piston connecting portion complex step-like structure, and the annular arch sets up in the anterior inner wall of column barrel.
Compared with the prior art, the utility model has the advantages that: the utility model discloses a collet chuck that the design has the hydro-cylinder, the motion through hydraulic oil drive piston drives the pressure sleeve and realizes that the clamp of collet chuck loosens.
Drawings
Fig. 1 is a schematic view of a collet chuck with a cylinder according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of the collet with cylinder according to the embodiment of the present invention.
Fig. 3 is a sectional view of the collet with cylinder according to the embodiment of the present invention.
Fig. 4 is a first perspective view of the collet with cylinder according to the embodiment of the present invention.
Fig. 5 is a perspective view of the collet with cylinder according to the embodiment of the present invention.
Detailed Description
The technical solution adopted by the present invention will be further described with reference to the schematic drawings.
Fig. 1 is a view of one side of a collet in a collet with a cylinder, and it can be seen that the collet 7 has a clamping hole 7a for clamping a rod, and the rod in the clamping hole can be clamped or loosened by pressing or loosening the collet, and the working principle of the collet is well known in the prior art and will not be described herein.
A self-contained cylinder collet, as shown in fig. 2, comprising: the collet chuck comprises a collet chuck shell 1 with an opening at one side, the collet chuck shell is provided with an opening at the right side in the figure 2, the collet chuck shell 1 is provided with a cylindrical collet chuck shell body and a collet chuck shell bottom arranged at the left side of the cylindrical collet chuck shell, an inner cavity communicated with the opening is formed in the collet chuck shell 1, an annular groove body communicated with the inner cavity is arranged on the inner side of the shell bottom of the collet chuck shell and used for accommodating a piston and a part of a positioning block, the collet chuck shell is provided with a fixing structure 13 fixed on processing equipment, the fixing structure is a flange structure arranged on the cylindrical collet chuck shell body, and bolt holes of the flange structure are used for allowing screws to fix. The pressure sleeve 3 which is slidably arranged in the inner cavity of the collet housing can compress or loosen the collet, the collet can be compressed when the pressure sleeve moves rightwards under the pushing of the piston, otherwise, the collet is loosened, the collet mounting end of the pressure sleeve is provided with the annular bulge, the annular bulge is formed at the inner side of the pressure sleeve and is provided with a stop table, the annular bulge is provided with a conical channel matched with the collet, in the figure 2, the inner diameter of the conical channel is gradually increased from left to right, and the gradually changed inner diameter is beneficial to matching the pressure sleeve with the collet and clamping the clamped object by the collet. The positioning block 4 installed in the pressure sleeve is fixed on the inner side of the shell bottom of the collet housing, and due to the annular groove body on the inner side of the collet housing, the boss surrounded by the annular groove body can be used for fixing the positioning block, for example, the positioning block is fixed on the boss of the collet housing by using three positioning block fixing bolts 14, and the collet 7 is clamped in the groove formed in the positioning block.
With reference to fig. 2, the piston 2 connected to the pressure sleeve and capable of pushing the pressure sleeve to slide in the collet housing is of a special-shaped structure, the piston of the special-shaped structure has a front connecting portion 2a located between the pressure sleeve and the positioning block, an intermediate portion 2b located between the collet housing and the positioning block, and a rear portion 2c located in the annular groove, the intermediate portion 2b and the rear portion 2c form a structure with a substantially L-shaped cross section, a movement space with a L-shaped cross section is formed between the positioning block and the inner wall of the collet housing, so that the piston can perform piston movement in the space, and the front connecting portion 2a is provided with an external thread structure on the outer surface, thereby facilitating the threaded connection between the piston and the pressure. A first hydraulic oil pushing cavity 11 for pushing the piston forwards is formed between the rear part of the piston and the positioning block and between the rear part of the piston and the collet housing, a second hydraulic oil pushing cavity 12 for pushing the piston backwards is formed between the middle part of the piston and the positioning block, the collet housing is provided with a first oil inlet 9 communicated with the first hydraulic oil pushing cavity and a second oil inlet 10 communicated with the second hydraulic oil pushing cavity, and the positioning block is provided with an oil inlet channel communicated with the second oil inlet and communicated with the second hydraulic oil pushing cavity. When hydraulic oil is injected from the second oil inlet 10, the hydraulic oil enters the second hydraulic oil pushing cavity, so that the piston is pushed towards the shell bottom direction of the collet chuck shell, the pressure sleeve connected with the piston is driven to move towards the direction far away from the collet chuck, and the collet chuck is loosened. After hydraulic oil is injected from the first oil inlet 9, the hydraulic oil enters the first hydraulic oil pushing cavity, so that the piston is pushed towards the chuck direction, and the pressure sleeve connected with the piston is driven to move towards the chuck direction, so that the chuck is clamped. The utility model discloses an entry of two oil inlets all is located the shell bottom surface of collet chuck casing.
It is worth mentioning that an anti-rotation mechanism is arranged between the pressure sleeve and the chuck and between the pressure sleeve and the positioning block, the anti-rotation mechanism is an anti-rotation threaded pin, and the anti-rotation mechanism can avoid relative rotation between the pressure sleeve and the chuck and also avoid relative rotation between the pressure sleeve and the positioning block. The anti-rotation threaded pin between the pressure sleeve and the chuck is defined as a first anti-rotation threaded pin 5, and the anti-rotation threaded pin between the pressure sleeve and the positioning block is defined as a second anti-rotation threaded pin 6. It should be noted that the annular raised part of the pressure sleeve is provided with a threaded hole for installing the first anti-rotation threaded pin 5, the chuck is provided with a chuck notch matched with the first anti-rotation threaded pin 5, similarly, a threaded hole for installing the second anti-rotation threaded pin 6 is arranged at the position of the pressure sleeve close to the piston, a positioning block notch matched with the second anti-rotation threaded pin 6 is arranged on the positioning block, the second anti-rotation threaded pin 6 is screwed into the pressure sleeve to be inserted into the positioning block notch, and the first anti-rotation threaded pin 5 is screwed into the pressure sleeve to be inserted into the chuck notch.
Consider that the piston drives pressure sleeve, through threaded connection between the connecting portion of piston and the pressure sleeve, the inner wall that pressure sleeve is close to the piston again this moment is provided with the internal thread structure to let realize the screw thread equipment between the two, this structure makes things convenient for the dismouting between piston and the pressure sleeve.
The utility model discloses a from taking in the hydro-cylinder collet chuck, be provided with first sealing washer 8 between locating piece and the chuck.
Referring to fig. 2, the positioning block includes: the cylinder main part, its front end is provided with chuck installation slot, the cylinder main part has the locating piece front portion with the contact of locating piece inner wall, the locating piece middle part with the inboard contact of piston connecting portion, the locating piece rear portion with the contact of piston middle part and rear portion inner wall, the locating piece rear portion is provided with the boss cooperation concave part that establishes with the collet chuck casing drain pan, the external diameter at locating piece middle part is less than the anterior external diameter of locating piece, the external diameter at locating piece rear portion is less than the external diameter that the locating. The pressure sleeve is a cylindrical barrel, the rear portion of the cylindrical barrel is provided with a step-shaped structure matched with the piston connecting portion, and the annular bulge is arranged on the inner wall of the front portion of the cylindrical barrel.
The utility model discloses an inside all is provided with seal structure in each sealed position, follows the detailed description in combination with figure 3 the utility model discloses seal structure's installation. In FIG. 3, a second sealing ring 1-1, a third sealing ring 1-2, a fourth sealing ring 4-2, a fifth sealing ring 3-1, a sixth sealing ring 3-2, a seventh sealing ring 2-2, an eighth sealing ring 2-1 and a ninth sealing ring 4-1 are shown, the second sealing ring 1-1 is arranged between a boss arranged on the collet housing and a positioning block, and is positioned at a position adjacent to an oil inlet channel (in an L shape) arranged between a second oil inlet 10 and the positioning block, and is used for hydraulic sealing of an oil circuit between the collet housing and the positioning block, the third sealing ring 1-2 is also arranged between the collet housing and the positioning block for sealing, the fourth sealing ring 4-2 is positioned between the inner wall of a piston connecting part 2a and the positioning block, and the fifth sealing ring 3-1 is positioned between a pressure sleeve and the positioning block, the sixth sealing ring 3-2 is arranged between the inner wall of the collet housing and the pressure sleeve (close to the opening of the collet housing), the seventh sealing ring 2-2 is arranged between the inner side surface of the rear part of the piston and the outer side surface of the rear part of the positioning block, the eighth sealing ring 2-1 is arranged between the outer side surface of the rear part of the piston and the collet housing, and the ninth sealing ring 4-1 is arranged between the boss wall arranged on the collet housing and the positioning block. Through the sealing structure, the sealing performance of the collet can be effectively ensured. The sealing rings herein include, but are not limited to, rubber sealing rings.
The utility model discloses in, locating piece and piston and pressure sleeve sliding fit, pressure sleeve and collet chuck casing sliding fit.
Fig. 4 and 5 are perspective views of the self-contained cylinder collet.
The structure of the clamp in this embodiment belongs to the well-known prior art, and will not be described herein.
The above description is only for the preferred embodiment of the present invention, and does not limit the present invention. Any technical personnel who belongs to the technical field, in the scope that does not deviate from the technical scheme of the utility model, to the technical scheme and the technical content that the utility model discloses expose do the change such as the equivalent replacement of any form or modification, all belong to the content that does not break away from the technical scheme of the utility model, still belong to within the scope of protection of the utility model.
Claims (8)
1. The utility model provides a from taking hydro-cylinder collet chuck which characterized in that, it includes:
The collet chuck shell is provided with an inner cavity, an annular groove body communicated with the inner cavity is arranged on the inner side of the shell bottom of the collet chuck shell, and the collet chuck shell is provided with a fixing structure fixed on processing equipment;
The pressure sleeve is slidably arranged in the inner cavity of the collet housing, the chuck mounting end of the pressure sleeve is provided with an annular bulge, and the annular bulge is provided with a tapered channel matched with the chuck;
the positioning block is arranged in the pressure sleeve and is fixed on the inner side of the shell bottom of the collet chuck shell, and the collet chuck is clamped in a groove arranged in the positioning block;
The piston is connected to the pressure sleeve and can push the pressure sleeve to slide in the collet chuck shell, the piston is provided with a front connecting portion located between the pressure sleeve and the positioning block, an intermediate portion arranged between the collet chuck shell and the positioning block, and a rear portion arranged on the annular groove body, a first hydraulic oil pushing cavity for pushing the piston forwards is formed between the rear portion of the piston and the positioning block and the collet chuck shell, a second hydraulic oil pushing cavity for pushing the piston backwards is formed between the intermediate portion of the piston and the positioning block, the collet chuck shell is provided with a first oil inlet communicated with the first hydraulic oil pushing cavity and a second oil inlet communicated with the second hydraulic oil pushing cavity, and the positioning block is provided with an oil inlet channel communicated with the second oil inlet and leading.
2. The self-contained cylinder collet chuck according to claim 1, wherein anti-rotation mechanisms are disposed between the pressure sleeve and the collet, and between the pressure sleeve and the positioning block.
3. The self-contained cylinder collet as recited in claim 1, wherein the connection portion of the piston is threadably connected to the pressure sleeve.
4. the self-contained cylinder collet according to claim 2, wherein the anti-rotation mechanism is an anti-rotation threaded pin.
5. The self-contained cylinder collet chuck according to claim 1, wherein a first seal ring is disposed between the positioning block and the collet.
6. The self-contained cylinder collet as recited in claim 1, wherein the locating block comprises:
The collet chuck comprises a columnar main body part, wherein the front end part of the columnar main body part is provided with a collet chuck mounting groove, the columnar main body part is provided with a positioning block front part contacted with the inner wall of a positioning block, a positioning block middle part contacted with the inner side of a piston connecting part, and a positioning block rear part contacted with the piston middle part and the inner wall of the rear part, the positioning block rear part is provided with a boss matching concave part matched with a bottom shell of the collet chuck shell, the outer diameter of the positioning block middle part is smaller than the outer diameter.
7. The self-contained cylinder collet as recited in claim 1, wherein the locating block and the inner wall of the collet housing form a movement space having an L-shaped cross-section.
8. The self-contained cylinder collet chuck according to claim 1, wherein the pressure sleeve is a cylindrical barrel, the rear portion of the cylindrical barrel is provided with a step-like structure matched with the piston connecting portion, and the annular protrusion is arranged on the inner wall of the front portion of the cylindrical barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920491849.1U CN209737051U (en) | 2019-04-11 | 2019-04-11 | collet clamp with oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920491849.1U CN209737051U (en) | 2019-04-11 | 2019-04-11 | collet clamp with oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209737051U true CN209737051U (en) | 2019-12-06 |
Family
ID=68720663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920491849.1U Active CN209737051U (en) | 2019-04-11 | 2019-04-11 | collet clamp with oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209737051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866043A (en) * | 2019-04-11 | 2019-06-11 | 上海宁远精密机械股份有限公司 | Included cylinder tube folder |
-
2019
- 2019-04-11 CN CN201920491849.1U patent/CN209737051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109866043A (en) * | 2019-04-11 | 2019-06-11 | 上海宁远精密机械股份有限公司 | Included cylinder tube folder |
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| GR01 | Patent grant |