CN211161980U - Rapid clamping device for plane milling of shaft parts - Google Patents
Rapid clamping device for plane milling of shaft parts Download PDFInfo
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- CN211161980U CN211161980U CN201921929233.4U CN201921929233U CN211161980U CN 211161980 U CN211161980 U CN 211161980U CN 201921929233 U CN201921929233 U CN 201921929233U CN 211161980 U CN211161980 U CN 211161980U
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- thimble
- cylinder
- piston
- end cover
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Abstract
The utility model discloses a quick clamping device for axle type part plane mills, including bottom plate and dividing head and the tight mechanism in pneumatic top of setting on the bottom plate, the tight mechanism in pneumatic top includes cylinder, thimble seat and thimble, and the cylinder is fixed on the thimble seat, is equipped with piston and piston rod in the cylinder, and the piston rod links to each other with the rear end of thimble, the front end of thimble with the central axis of the relative and thimble of three-jaw chuck that the dividing head was last to set up and three-jaw chuck is on same straight line with the central axis of three-jaw chuck. The utility model discloses a quick clamping device has quick pine and presss from both sides, the work piece location is accurate, product quality is good characteristics, has very high practical value.
Description
Technical Field
The utility model relates to the field of machining, especially, relate to a quick clamping device that is used for axle type part plane to mill.
Background
Among pneumatic actuators and electric actuators used in automatic valve control systems, shaft parts have many processes of milling 2, 4, 6, 8 equal planes, and the shaft parts are generally divided into halves, quarters, hexagons, eighgons, and the like by using index heads. However, in the process of milling the machined surface of the part shaft, if only one end of the shaft lever is fixed by the dividing head, the workpiece has the defects of inaccurate positioning and easy stress deviation due to the action of cutting force in the machining process, and the product quality is seriously influenced. The publication date is 2018, 6 and 15, and the chinese patent document with publication number CN108161793A discloses a rapid clamping device, wherein a pressing flange and a top plate are respectively mounted at two sides of a bracket, one end of a top rod is rotatably connected with the top plate, the other end of the top rod is in threaded connection with a central pressing piece, a slip ring copper sleeve is sleeved on the central pressing piece, a synchronous slip ring is sleeved outside the slip ring copper sleeve in a relatively movable manner, a copper sleeve flange is arranged at the outer end of the slip ring copper sleeve, a spring sleeved on the slip ring copper sleeve is arranged between the synchronous slip ring and the copper sleeve flange, and two ends of the spring are respectively abutted against the synchronous slip ring and the copper sleeve flange; the clamping device comprises a clamping flange, a plurality of pull rods, a central pressing piece and clamping pieces, wherein the plurality of pull rods are uniformly distributed along the circumferential direction of the clamped piece; and a connecting rod is connected between each pull rod and the synchronous slip ring, and two ends of each connecting rod are respectively hinged with the pull rods and the synchronous slip rings. The rapid clamping device has the advantages of novel structure, simplicity and convenience in operation, small size and the like. But the rapid clamping device has a complex structure and is not suitable for rapid clamping during plane milling of shaft parts.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the work piece location that prior art's axle type part exists in the plane milling process inaccurate, easy atress skew to seriously influence product quality's problem, provide a quick clamping device for axle type part plane milling, have quick pine press from both sides, the work piece location is accurate, product quality is good characteristics.
The utility model adopts the specific proposal that the rapid clamping device for plane milling of shaft parts comprises a bottom plate, a dividing head and a pneumatic jacking mechanism which are arranged on the bottom plate, the dividing head is arranged on one side of the bottom plate, the pneumatic jacking mechanism is arranged on the opposite side of the dividing head and comprises an air cylinder and an ejector pin mechanism, the thimble mechanism comprises a thimble seat and a thimble, the thimble seat is fixed on the bottom plate, the cylinder is fixed on the thimble seat, a piston and a piston rod are arranged in the cylinder, the piston rod is connected with the rear end part of the thimble, the piston rod and the ejector pin can horizontally slide relative to the ejector pin base, the front end of the ejector pin is opposite to the three-jaw chuck arranged on the dividing head, and the central axis of the ejector pin and the central axis of the three-jaw chuck are on the same straight line. When the plane milling of the shaft part is carried out, the shaft part is firstly placed in the dividing head and is locked and fixed through the three-jaw chuck, and the milling surface is horizontally upward by utilizing the dividing head; after one end of the shaft part is fixed, the ejector pin is pushed by the pneumatic jacking mechanism to abut against the suspended end of the shaft part, so that the end is prevented from being deviated due to milling force, and the purposes of accurate positioning and jacking are achieved. When one surface of the shaft part is milled and switched to be machined, the pneumatic jacking mechanism controls the ejector pin to retract, the index head controls and switches to the next indexed milling surface, and the pneumatic jacking mechanism pushes the ejector pin to abut against the suspension end of the shaft part, so that the next plane can be milled. Thus, the utility model provides an axle type part of prior art inaccurate, the easy atress skew of work piece location that exists in the plane milling process to seriously influence product quality's problem, the utility model discloses a quick clamping device has quick pine to press from both sides, the work piece location is accurate, has ensured the quality of product.
Preferably, the air cylinder comprises a cylinder body, a front end cover and a rear end cover are arranged at two ends of the cylinder body respectively, an air port A is arranged on the rear end cover, an air port B is arranged on the front end cover, the air port A and the air port B are communicated with an inner cavity of the cylinder body, and the air cylinder is fixed on the ejector pin base through the front end cover. The air inlet A enables the piston to move forwards to provide clamping force for the ejector pin through the piston rod, and the air inlet B enables the piston to retreat to drive the ejector pin to retract through the piston rod, so that the shaft parts can be quickly loosened, and the shaft parts can rotate to replace the milled surfaces conveniently.
Preferably, the rear end cover is provided with a stroke adjusting limit bolt, the stroke adjusting limit bolt is arranged in the center of the rear end cover, the axis of the stroke adjusting limit bolt coincides with the central axis of the piston, and a locking nut is arranged between the stroke adjusting limit bolt and the rear end cover. The stroke adjusting limiting bolt is used for limiting the maximum retreating stroke of the ejector pin, the stroke distance of different shaft parts can be adjusted through the stroke adjusting limiting bolt, and the different shaft parts are locked by the locking nut after being adjusted.
Preferably, the piston rod is arranged at the front part of the cylinder, the rear end of the piston rod is fixed on the piston, the front end of the piston rod penetrates through the front end cover to be fixedly connected with the rear end part of the ejector pin, the piston rod in the cylinder is sleeved with the buffer spring, one end of the buffer spring is abutted against the piston, and the other end of the buffer spring is abutted against the front end cover. The buffer spring can avoid overlarge impact force on the shaft parts due to overhigh speed when the thimble is stressed and stretched out, and avoid the damage of the shaft parts or the clamping device.
Preferably, an O-ring is arranged between the front end cover and the piston rod, and the O-ring is arranged in an annular groove formed in the front end cover. The O-shaped sealing ring is used for sealing the cylinder.
Preferably, the circumference of the thimble is provided with a guide groove extending axially, the top of the thimble seat is provided with a rotation stopping pin, and the lower end of the rotation stopping pin is positioned in the guide groove. The guide groove is matched with the rotation stopping pin and used for preventing the thimble from rotating.
Preferably, a manual reversing valve is arranged on the cylinder, the air source is connected with the air port A and the air port B on the cylinder through the manual reversing valve, and a reversing handle is arranged on the manual reversing valve. Through switching over the air inlet on the cylinder, can be convenient realize ejecting or retreating of thimble, it is simple and convenient to operate through the switching-over handle.
Preferably, a piston ring and an O-ring are provided between the outer periphery of the piston and the inner wall of the cylinder, and the piston ring and the O-ring are respectively provided in an annular groove in the outer periphery of the piston. The piston ring and the O-shaped sealing ring are respectively used for guiding and sealing the piston.
The beneficial effects of the utility model are that, it has solved the work piece location that prior art's axle type part exists effectively in the plane milling process inaccurate, easy atress skew to seriously influence product quality's problem, the utility model discloses a quick clamping device has quick pine and presss from both sides, the work piece location is accurate, product quality is good characteristics, has very high practical value.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of a partial structure of the present invention.
In the figure, 1, a bottom plate, 2, a dividing head, 3, a cylinder, 4, an ejector pin base, 5, an ejector pin, 6, a piston, 7, a piston rod, 8, a three-jaw chuck, 9, a cylinder body, 10, a front end cover, 11, a rear end cover, 12, an air port A, 13, an air port B, 14, a stroke adjusting limit bolt, 15, a locking nut, 16, a buffer spring, 17, an O-shaped sealing ring, 18, a guide groove, 19, a rotation stopping pin, 20, a manual reversing valve, 21, a reversing handle, 22, a piston ring, 23 and an axial part are arranged.
Detailed Description
The following provides a further description of embodiments of the present invention with reference to the accompanying drawings.
Example 1
In embodiment 1 shown in fig. 1 and 2, a rapid clamping device for plane milling of shaft parts comprises a base plate 1, and a dividing head 2 and a pneumatic jacking mechanism which are arranged on the base plate, wherein the dividing head is arranged on one side of the base plate, the pneumatic jacking mechanism is arranged on the opposite side of the dividing head, the pneumatic jacking mechanism comprises a cylinder 3 and a thimble mechanism, the cylinder comprises a cylinder body 9, a front end cover 10 and a rear end cover 11 are respectively arranged at two ends of the cylinder body, an a gas port 12 is arranged on the rear end cover, a B gas port 13 is arranged on the front end cover, the a gas port and the B gas port are both communicated with an inner cavity of the cylinder body, and the cylinder is fixed on a thimble seat through the front end cover. The rear end cover is provided with a stroke adjusting limit bolt 14, the stroke adjusting limit bolt is arranged in the center of the rear end cover, the axis of the stroke adjusting limit bolt coincides with the central axis of the piston, and a locking nut 15 is arranged between the stroke adjusting limit bolt and the rear end cover.
The thimble mechanism comprises a thimble seat 4 and a thimble 5, the periphery of the thimble is provided with a guide groove 18 extending axially, the top of the thimble seat is provided with a rotation stopping pin 19, and the lower end of the rotation stopping pin is positioned in the guide groove. The thimble seat is fixed on the bottom plate, the cylinder is fixed on the thimble seat, a piston 6 and a piston rod 7 are arranged in the cylinder, a piston ring 22 and an O-shaped sealing ring are arranged between the periphery of the piston and the inner wall of the cylinder body, and the piston ring and the O-shaped sealing ring are respectively arranged in an annular groove at the periphery of the piston. The piston rod with the back end of thimble links to each other, the piston rod with the thimble can make horizontal slip for the thimble seat, the front end of thimble with three-jaw chuck 8 that set up on the dividing head is relative and the central axis of thimble and three-jaw chuck are on same straight line. The piston rod is arranged at the front part of the cylinder, the rear end of the piston rod is fixed on the piston, the front end of the piston rod penetrates through the front end cover to be fixedly connected with the rear end part of the thimble, the piston rod in the cylinder is sleeved with a buffer spring 16, one end of the buffer spring is abutted to the piston, and the other end of the buffer spring is abutted to the front end cover. An O-shaped sealing ring 17 is arranged between the front end cover and the piston rod, and the O-shaped sealing ring is arranged in an annular groove formed in the front end cover. The cylinder is provided with a manual reversing valve 20, an air source is connected with an air port A and an air port B on the cylinder through the manual reversing valve, and the manual reversing valve is provided with a reversing handle 21.
When the plane milling of the shaft part 23 is carried out, the shaft part is firstly placed in the dividing head and is locked and fixed through the three-jaw chuck, and the milling surface is horizontally upward by utilizing the dividing head; after one end of the shaft part is fixed, the air cylinder is controlled through the manual reversing valve to push the ejector pin to abut against the suspended end of the shaft part, so that the end is prevented from being deviated due to milling force, and the purposes of accurate positioning and tight jacking are achieved. When one surface of the shaft part is milled and switched to be machined, the air cylinder is controlled by the manual reversing valve to enable the ejector pin to retract, the index head controls and switches to the next indexed milling surface, and the air cylinder is controlled by the manual reversing valve to push the ejector pin to abut against the free end of the shaft part, so that the next plane can be milled. Thus, the utility model provides an axle type part of prior art inaccurate, the easy atress skew of work piece location that exists in the plane milling process to seriously influence product quality's problem, the utility model discloses a quick clamping device has quick pine to press from both sides, the work piece location is accurate, has ensured the quality of product.
In addition to the above embodiments, the technical features or technical data of the present invention can be selected and combined again within the scope disclosed in the claims and the specification of the present invention to constitute new embodiments, which can be realized by those skilled in the art without creative efforts, and therefore, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and within the protection scope of the present invention.
Claims (8)
1. A rapid clamping device for milling the plane of a shaft part is characterized by comprising a base plate (1), a dividing head (2) arranged on the base plate and a pneumatic jacking mechanism, the dividing head is arranged on one side of the bottom plate, the pneumatic jacking mechanism is arranged on the opposite side of the dividing head and comprises a cylinder (3) and an ejector pin mechanism, the thimble mechanism comprises a thimble seat (4) and a thimble (5), the thimble seat is fixed on the bottom plate, the cylinder is fixed on the thimble seat, a piston (6) and a piston rod (7) are arranged in the cylinder, the piston rod is connected with the rear end part of the thimble, the piston rod and the thimble can horizontally slide relative to the thimble seat, the front end of the thimble is opposite to a three-jaw chuck (8) arranged on the dividing head, and the central axis of the thimble and the central axis of the three-jaw chuck are on the same straight line.
2. The rapid clamping device for plane milling of shaft parts according to claim 1, wherein the cylinder comprises a cylinder body (9), a front end cover (10) and a rear end cover (11) are respectively arranged at two ends of the cylinder body, an A air port (12) is arranged on the rear end cover, a B air port (13) is arranged on the front end cover, the A air port and the B air port are both communicated with an inner cavity of the cylinder body, and the cylinder is fixed on the thimble seat through the front end cover.
3. The rapid clamping device for plane milling of shaft parts according to claim 2, characterized in that the rear end cover is provided with a stroke adjustment limit bolt (14), the stroke adjustment limit bolt is arranged in the center of the rear end cover, the axis of the stroke adjustment limit bolt coincides with the central axis of the piston, and a locking nut (15) is arranged between the stroke adjustment limit bolt and the rear end cover.
4. The rapid clamping device for plane milling of shaft parts according to claim 2, wherein the piston rod is arranged at the front part of the cylinder, the rear end of the piston rod is fixed on the piston, the front end of the piston rod passes through the front end cover to be fixedly connected with the rear end part of the ejector pin, the piston rod in the cylinder is sleeved with a buffer spring (16), one end of the buffer spring is abutted against the piston, and the other end of the buffer spring is abutted against the front end cover.
5. The rapid clamping device for plane milling of shaft parts according to claim 4, characterized in that an O-shaped sealing ring (17) is arranged between the front end cover and the piston rod, and the O-shaped sealing ring is arranged in an annular groove arranged on the front end cover.
6. The rapid clamping device for plane milling of shaft parts according to claim 1, characterized in that the outer circumference of the thimble is provided with an axially extending guide groove (18), the top of the thimble seat is provided with a rotation stop pin (19), and the lower end of the rotation stop pin is positioned in the guide groove.
7. The rapid clamping device for plane milling of shaft parts according to claim 1, wherein the cylinder is provided with a manual reversing valve (20), the air source is connected with the air port A and the air port B on the cylinder through the manual reversing valve, and the manual reversing valve is provided with a reversing handle (21).
8. The rapid clamping device for plane milling of shaft parts according to any one of claims 1 to 7, characterized in that a piston ring (22) and an O-shaped sealing ring are arranged between the outer periphery of the piston and the inner wall of the cylinder body, and the piston ring and the O-shaped sealing ring are respectively arranged in a ring groove on the outer periphery of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929233.4U CN211161980U (en) | 2019-11-08 | 2019-11-08 | Rapid clamping device for plane milling of shaft parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921929233.4U CN211161980U (en) | 2019-11-08 | 2019-11-08 | Rapid clamping device for plane milling of shaft parts |
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| Publication Number | Publication Date |
|---|---|
| CN211161980U true CN211161980U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921929233.4U Active CN211161980U (en) | 2019-11-08 | 2019-11-08 | Rapid clamping device for plane milling of shaft parts |
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| Country | Link |
|---|---|
| CN (1) | CN211161980U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334164A (en) * | 2021-05-31 | 2021-09-03 | 湖州铭灏机械有限公司 | Shaft type cylindrical grinding device and method |
| CN113799027A (en) * | 2021-09-07 | 2021-12-17 | 南京信息职业技术学院 | Quick clamping device for shaft |
| CN113828836A (en) * | 2021-09-23 | 2021-12-24 | 重庆铁马工业集团有限公司 | Thin-wall part slender groove milling clamping auxiliary tool |
-
2019
- 2019-11-08 CN CN201921929233.4U patent/CN211161980U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113334164A (en) * | 2021-05-31 | 2021-09-03 | 湖州铭灏机械有限公司 | Shaft type cylindrical grinding device and method |
| CN113334164B (en) * | 2021-05-31 | 2023-02-10 | 湖州铭灏机械有限公司 | Shaft type cylindrical grinding device and method |
| CN113799027A (en) * | 2021-09-07 | 2021-12-17 | 南京信息职业技术学院 | Quick clamping device for shaft |
| CN113828836A (en) * | 2021-09-23 | 2021-12-24 | 重庆铁马工业集团有限公司 | Thin-wall part slender groove milling clamping auxiliary tool |
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