CN216502797U - Gear grinding machine quick change anchor clamps - Google Patents
Gear grinding machine quick change anchor clamps Download PDFInfo
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- CN216502797U CN216502797U CN202122245738.2U CN202122245738U CN216502797U CN 216502797 U CN216502797 U CN 216502797U CN 202122245738 U CN202122245738 U CN 202122245738U CN 216502797 U CN216502797 U CN 216502797U
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Abstract
The utility model relates to a quick-change clamp of a gear grinding machine, which comprises a transition sleeve, a chuck, a piston, a cylinder body and a flange, wherein the transition sleeve is arranged on the chuck; one end of the flange is provided with a boss matched with the cylinder body, an oil way is arranged on the flange, and the other end of the flange is fixed with the cylinder body; the piston is arranged between the cylinder body and the flange, and one end of the groove of the piston and the end surface of the flange boss form a cavity and are communicated with an oil way of the flange; a disc spring is arranged between the piston and the flange; one side of the piston is clamped with the chuck; the cylinder body is connected with the chuck through the conical surface, and there are three archs the chuck inboard, and the transition cover is equipped with three can with protruding complex time shape recess. According to the utility model, the conventional gear grinding clamp is improved, and the special transition sleeve is added, so that the rapid machining of various parts of one body can be realized; the workpiece clamping time is saved, the operation labor intensity is reduced, and the productivity is improved; the quick-change clamp of the gear grinding machine is convenient to clamp and reliable in clamping, and does not damage machined parts.
Description
Technical Field
The utility model relates to a clamp, in particular to a quick-change clamp of a gear grinding machine.
Background
For clamping shaft workpieces, two clamping modes are adopted at present at home and abroad, one is a slotting expanding sleeve type, and the other is a liquid plastic type. The existing foreign shaft gear grinding clamp is mostly of a liquid-plastic tensioning structure, the manufacturing technology difficulty of the clamp is high, most of the clamp is monopolized abroad, the clamp cost is high, the clamping precision of the clamp is high, the tensioning gap is small, only one thousandth of the clamping shaft diameter exists, the universality is poor, and the clamp is not suitable for trial production or small-batch production. The fixture is generally simple in structure, convenient to adjust, good in stability and low in cost during trial production and small-batch production. Some domestic manufacturers apply a slotting expansion sleeve structure clamp matched with a conical surface, the expansion clearance of the structure clamp is 0.15-0.25mm, the dimensional tolerance of the part positioning reference is relatively loose, but the expansion clearance of the clamp is still limited, the universality is poor, the rapid production change cannot be realized, and the processing efficiency is seriously influenced.
The prior art discloses an anchor clamps, concretely relates to conical surface location quick change formula axle is with gerar grinding anchor clamps, including the flange, a pedestal, the spring sleeve, the taper sleeve, spring sleeve end cover, it is top, holding screw, top spring, sleeve spring, the sleeve screw, the guide arm, a piston, the cylindric lock, the base screw, guide arm spring and flange screw, the work piece location adopts little taper sleeve, the work piece is locked to the auto-lock power that the tapering produced when the lathe tail top compresses tightly, the design is floated to anchor clamps center adoption sectional type, play the guide effect when centre gripping work piece, built-in pressure cylinder makes lathe hydraulic oil pressure transmit to top when unloading the work piece, top through spacing design, push up the work piece, thereby make the work piece break away from the conical surface and do benefit to the manipulator and take off the work piece. The working principle is that the holding part is easy to wear through micro liquid-plastic change of the inner wall, and the holding part is only suitable for processing shaft parts with fixed sizes and has no universality.
The prior art also discloses an automatic fixture for grinding the inner circle of the conical surface type gear. The positioning device comprises a connecting flange, a positioning rod, a positioning flange, a middle sleeve, an outer conical spring, an inner conical spring, a hexagon nut, an inner spline sleeve, an outer conical surface inner gear, an outer thread taper sleeve, an inner thread support ring and a right end cover. The internal thread support ring and the external thread taper sleeve adopt rectangular thread transmission, so that the radial movement of the external thread taper sleeve can be realized, and the conical surface of the external conical surface internal gear is extruded by the conical surface of the external conical surface internal gear, so that the open type external conical surface internal gear is deformed, and the clamping function is realized. However, although the purpose of quickly replacing the jig can be achieved by the screw, the jig cannot be manufactured with high precision because of insufficient precision.
The prior art also discloses a cylindrical gear workpiece clamping device for gear grinding processing, which comprises a connecting disc, a taper mandrel fastened on the connecting disc, a base installed on the taper mandrel, a connecting rod connected with a gear grinding machine driving system, a pull rod in threaded connection with the connecting rod and provided with steps, a cylindrical gear workpiece installed on the base, an elastic expansion sleeve installed between a central hole surface of the cylindrical gear and an outer conical surface of the taper mandrel, a pressing cap installed above the elastic expansion sleeve, a fastening nut installed at the tail end of the pull rod, and a pressing cover installed on the end surface of the cylindrical gear workpiece and connected with the gear grinding machine driving system. However, in the clamping device, the opening of the clamping head is filled with adhesive, the elastic expansion sleeve is integrally formed by the action of the adhesive, and the elastic deformation is limited, so that the size of a machined part is limited.
Therefore, a novel shaft gear grinding clamp needs to be designed, serialization is required to be achieved, and the requirement of small-batch trial-manufacture quick change is met.
Disclosure of Invention
The utility model aims to provide a quick-change clamp of a gear grinding machine, and aims to solve the problems that the existing clamp of the gear grinding machine is large in size, long in clamp body, complex in structure, low in positioning accuracy, incapable of quickly changing the clamp body, poor in universality, high in cost due to the adoption of a liquid plastic clamp and easy to wear.
The purpose of the utility model is realized by the following technical scheme:
a quick-change clamp of a gear grinding machine comprises a transition sleeve 1, a chuck 2, a piston 3, a cylinder body 5 and a flange 9; one end of the flange 9 is provided with a boss matched with the cylinder body 5, the flange 9 is provided with an oil way 12, and the other end of the flange 9 is fixed with the cylinder body 5; the piston 3 is arranged between the cylinder body 5 and the flange 9, and one end of the groove of the piston and the end surface of the boss of the flange 9 form a cavity and are communicated with an oil way 12 of the flange 9; a disc spring 6 is arranged between the piston 3 and the flange 9; one side of the piston 3 is clamped with the chuck 2;
the cylinder body 5 is connected with the chuck 2 through a conical surface, three bulges are arranged on the inner side of the chuck 2, and the transition sleeve 1 is provided with three clip-shaped grooves which can be matched with the bulges.
Further, the oil path 12 is three sections of holes which are communicated with each other, and the oil path 12 is sealed at the outer diameter of the flange 9 through a hydraulic plug 11.
Furthermore, the cylinder body 5 is connected with the flange 9 through an inner hexagonal socket head cap screw 8, and a boss of the flange 9 extends into the cylinder body 5 to be in sealing fit with the cylinder body.
Furthermore, a 0-shaped sealing ring 7 is sleeved outside the piston 3 and used for sealing between the piston and the cylinder 5 and between the piston and the flange 9.
Further, piston 3 one side sets up rather than integrated into one piece's piston colludes 4, can with chuck 2 joint.
Further, the cylinder body 5 is connected with the chuck 2 through a conical surface, glue is coated on the conical surface, and the chuck 2 is fixed on the cylinder body 5 through a chuck screw 10.
Further, the three protrusions are evenly distributed on the collet 2 at an angle of 120 °.
Further, the three zigzag grooves are uniformly distributed on the transition sleeve 1 at 120 °.
Further, the flange 9 is mounted on the machine tool by means of socket head cap screws 8.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the conventional gear grinding clamp is improved, and the special transition sleeve is added, so that the rapid machining of various parts of one body can be realized; the workpiece clamping time is saved, the operation labor intensity is reduced, and the production efficiency is improved; the quick-change clamp of the gear grinding machine is convenient to clamp and reliable in clamping, and does not damage machined parts.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of a quick-change clamp of a gear grinding machine according to the present invention;
FIG. 2 is a schematic view of a transition sleeve and a collet of the present invention;
fig. 3-8 are schematic structural diagrams of the transition sleeve.
In the figure, 1, a transition sleeve 2, a chuck 3, a piston 4, a piston hook 5, a cylinder body 6, a disc spring 7.0 type sealing ring 8, an inner hexagonal cylindrical head screw 9, a flange 10, a chuck screw 11, a hydraulic plug 12 and an oil way are arranged.
Detailed Description
The utility model is further illustrated by the following examples:
the present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in figure 1, the quick-change clamp for the gear grinding machine is composed of a transition sleeve 1, a chuck 2, a piston 3, a piston hook 4, a cylinder 5, a disk spring 6, a 0-shaped sealing ring 7, an inner hexagonal socket head cap screw 8, a flange 9 and a chuck screw 10.
A boss is arranged at one end of the flange 9 and matched with the cylinder body 5, and an oil way 12 is also arranged on the flange 9; the oil path 12 in this embodiment is three sections of holes that are communicated with each other, and cannot be cast due to the limitation of the manufacturing process, so this way is selected, and the oil path 12 is sealed at the outer diameter of the flange 9 by the hydraulic plug 11.
The cylinder body 5 is connected with the flange 9 through an inner hexagonal socket head cap screw 8, and a boss of the flange 9 extends into the cylinder body 5 to be in sealing fit with the cylinder body.
The piston 3 is arranged between the cylinder body 5 and the flange 9, one end of the groove of the piston forms a cavity with the end surface of the boss of the flange 9 and is communicated with the oil way 12 of the flange 9, and the disc spring 6 is arranged between the piston 3 and the flange 9 and can apply force to the piston 3. The piston 3 is sleeved with a 0-shaped sealing ring 7, so that the sealing between the piston and the cylinder body 5 and the sealing between the piston and the flange 9 can be realized.
And one side of the piston 3 is provided with a piston hook 4 which is integrally formed with the piston and can be clamped with the chuck 2. When the disk spring 6 moves, the pulling collet 2 moves together.
The cylinder body 5 is connected with the chuck 2 through a conical surface, glue is coated on the conical surface, the chuck 2 is fixed on the cylinder body 5 through a chuck screw 10, and three bulges are uniformly distributed on the chuck 2 at an angle of 120 degrees on the inner side of the chuck 2.
As shown in fig. 2-8, the transition sleeve 1 is provided with three zigzag grooves which are also uniformly distributed on the transition sleeve 1 at 120 degrees, the transition sleeve 1 is connected with the chuck 2 and fixed with each other through the protrusions and the grooves, and the flange 9 is mounted on a machine tool through the hexagon socket cap screws 8.
The working process and the method are as follows:
1. clamping action of the clamp:
when a machine tool executes a clamping program command, hydraulic oil at a machine tool clamp interface is pressurized, the hydraulic oil enters a sealed cavity formed by the piston 3 and the flange 9 through an oil path of a clamp part, the oil pressure in the cavity rises to push the piston 3 to move rightwards, the piston 3 hooks the chuck to contract rightwards, and meanwhile, the chuck 2 wraps the transition sleeve 1 and contracts rightwards together.
2. Loosening action of the clamp:
when the machine tool executes a loosening program command, hydraulic oil of a machine tool clamp interface is decompressed, oil pressure between the piston 3 and the flange 9 is reduced, the piston is pushed to move leftwards by the belleville spring 6, the piston hook 4 loosens the chuck 2, meanwhile, the chuck 2 and the transition sleeve 1 are loosened, a workpiece is loosened accordingly, and the hydraulic oil returns through an oil way.
3. Quick replacement of workpieces with different diameters:
for clamping workpieces of different diameter series, the transition sleeve 1 is only needed to be detached, and the transition sleeve 1 with different diameters is replaced, so that the rapid replacement can be realized.
4. Resetting of the various moving parts:
the return of the piston 3 is pushed back by the belleville spring 6.
In addition, the transition sleeve 1 can be fixed by drilling holes at the chuck 2 of the clamp body and using jackscrews. Steel balls and springs can be placed in rotary holes in the clamp chucks 2, and holes are also formed in the transition sleeve 1 to enable the transition sleeve to be matched and fixed.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. The utility model provides a gear grinding machine quick change anchor clamps which characterized in that: comprises a transition sleeve (1), a chuck (2), a piston (3), a cylinder body (5) and a flange (9); one end of the flange (9) is provided with a boss matched with the cylinder body (5), an oil way (12) is arranged on the flange (9), and the other end of the flange (9) is fixed with the cylinder body (5); the piston (3) is arranged between the cylinder body (5) and the flange (9), and one end of the groove of the piston and the end surface of the boss of the flange (9) form a cavity and are communicated with an oil way (12) of the flange (9); a disc spring (6) is arranged between the piston (3) and the flange (9); one side of the piston (3) is clamped with the chuck (2); the cylinder body (5) is connected with the chuck (2) through a conical surface, three bulges are arranged on the inner side of the chuck (2), and the transition sleeve (1) is provided with three clip-shaped grooves which can be matched with the bulges.
2. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the oil path (12) is three sections of holes which are communicated with each other, and the oil path (12) is sealed at the outer diameter of the flange (9) through a hydraulic plug (11).
3. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the cylinder body (5) is connected with the flange (9) through an inner hexagonal socket head cap screw (8), and a boss of the flange (9) extends into the cylinder body (5) and is in sealing fit with the cylinder body.
4. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: and a 0-shaped sealing ring (7) is sleeved on the outer side of the piston (3) and used for sealing between the piston and the cylinder body (5) and between the piston and the flange (9).
5. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: piston (3) one side sets up rather than integrated into one piece's piston colludes (4), can with chuck (2) joint.
6. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the cylinder body (5) is connected with the chuck (2) through a conical surface, glue is coated on the conical surface, and the chuck (2) is fixed on the cylinder body (5) through a chuck screw (10).
7. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the three projections are evenly distributed on the clamping head (2) at an angle of 120 degrees.
8. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the three square-shaped grooves are uniformly distributed on the transition sleeve (1) at an angle of 120 degrees.
9. The quick-change clamp of the gear grinding machine as claimed in claim 1, wherein: the flange (9) is arranged on the machine tool through an inner hexagonal socket head cap screw (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122245738.2U CN216502797U (en) | 2021-09-16 | 2021-09-16 | Gear grinding machine quick change anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122245738.2U CN216502797U (en) | 2021-09-16 | 2021-09-16 | Gear grinding machine quick change anchor clamps |
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| Publication Number | Publication Date |
|---|---|
| CN216502797U true CN216502797U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122245738.2U Active CN216502797U (en) | 2021-09-16 | 2021-09-16 | Gear grinding machine quick change anchor clamps |
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| CN (1) | CN216502797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401607A (en) * | 2022-07-29 | 2022-11-29 | 中国第一汽车股份有限公司 | Double-clamping inner hole grinding clamp and clamping method thereof |
-
2021
- 2021-09-16 CN CN202122245738.2U patent/CN216502797U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401607A (en) * | 2022-07-29 | 2022-11-29 | 中国第一汽车股份有限公司 | Double-clamping inner hole grinding clamp and clamping method thereof |
| CN115401607B (en) * | 2022-07-29 | 2023-08-22 | 中国第一汽车股份有限公司 | Double-clamping inner hole grinding clamp and clamping method thereof |
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