CN110935958A - Labor-saving workpiece clamping device for gear hobbing machine - Google Patents
Labor-saving workpiece clamping device for gear hobbing machine Download PDFInfo
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- CN110935958A CN110935958A CN201811111021.5A CN201811111021A CN110935958A CN 110935958 A CN110935958 A CN 110935958A CN 201811111021 A CN201811111021 A CN 201811111021A CN 110935958 A CN110935958 A CN 110935958A
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- rod
- clamping device
- rotating rod
- push
- gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
The invention discloses a labor-saving workpiece clamping device for a gear hobbing machine, which comprises a fixed seat, wherein a supporting rod is vertically fixed at the center of the upper surface of the fixed seat; a plurality of limiting grooves are uniformly distributed on the circumferential surface of the supporting rod, and are communicated with the grooves; the clamping device further comprises a moving rod arranged in the groove, the moving rod comprises an upper rotating rod and a lower rotating rod, and the periphery of the bottom end of the lower rotating rod is movably connected with one end of each of the push-pull rods; the plurality of push-pull rods respectively penetrate through the corresponding limiting grooves, so that the other ends of the push-pull rods are in contact with the gear to be machined; the push-pull rod is used for fixing the gear.
Description
Technical Field
The invention belongs to the technical field of gear production and processing, and particularly relates to a labor-saving workpiece clamping device for a gear hobbing machine.
Background
The original gear machine tool is in a three-grab chuck clamping type, and the problems of poor positioning precision, insufficient rigidity and the like often occur in the using process, so that the phenomena of positioning deviation of a cutter and a mandrel thereof and the like occur in the hobbing processing, and the precision of a product is poor; meanwhile, because the types of the gears are different and the corresponding diameters are also different, the corresponding size needs to be replaced by using the traditional grasping device, and the production efficiency is reduced.
Disclosure of Invention
The invention aims to provide a clamping device which can be used for gears with different inner diameters and is labor-saving.
In order to achieve the purpose, the invention is realized by the following technical scheme: a labor-saving workpiece clamping device for a gear hobbing machine comprises a fixed seat, wherein a supporting rod is vertically fixed at the center of the upper surface of the fixed seat, a downward groove is formed in the center of the upper surface of the supporting rod, and the groove extends to the middle lower part of the supporting rod;
a plurality of limiting grooves are uniformly distributed on the circumferential surface of the supporting rod, and are communicated with the grooves;
the clamping device further comprises a moving rod arranged in the groove, the moving rod comprises an upper rotating rod and a lower rotating rod, and the periphery of the bottom end of the lower rotating rod is movably connected with one end of each of the push-pull rods; the plurality of push-pull rods respectively penetrate through the corresponding limiting grooves, so that the other ends of the push-pull rods are in contact with the gear to be machined; the push-pull rod is used for fixing the gear;
the bottom end of the upper rotating rod is provided with an external thread; the top end of the lower rotating rod is fixedly connected with a connecting pipe, the connecting pipe is a hollow cylinder with an opening at the top, an internal thread is arranged on the inner surface of the connecting pipe, and the upper rotating rod is rotatably connected with the lower rotating rod through the matching of the external thread and the internal thread;
the outer surface of the upper rotating rod is provided with outward bulges along the circumferential direction, a circumferential through hole is formed right above the limiting groove, and the bulges are arranged in the circumferential through hole, so that the upper rotating rod can rotate on a horizontal plane.
Furthermore, the bulges are even and are respectively and symmetrically arranged.
Further, the protrusion is a cylinder wrapping the upper rotary rod and is concentric with the upper rotary rod.
Furthermore, a pressing cover is sleeved on the top of the upper rotating rod and used for further pressing the gear.
Furthermore, the top of the upper rotating rod is also connected with a rotating handle through a hinge.
Furthermore, the other end of the push-pull rod is fixedly connected with a roller.
Furthermore, the lower rotating rod is hinged with the push-pull rod in a movable connection manner.
Furthermore, the outer surface of the top of the moving rod is provided with an external thread, a vertical through hole is formed in the center of the pressing cover, an internal thread is formed in the inner surface of the through hole, and the pressing cover is sleeved on the moving rod through the matching of the internal thread and the external thread.
Furthermore, the number of the push-pull rods is the same as that of the limiting grooves.
The invention has the beneficial effects that: according to the internal diameter of the gear to be processed, the limit groove is arranged on the support rod, and the circumference size of the bottom end of the push-pull rod, which is expanded by stretching the support rod, is driven, so that the gear fixing device is suitable for fixing gears with different internal diameters; a pressing cover is arranged to further fasten the gear to be processed, so that the fastening effect is enhanced; and through the cooperation of the upper rotating rod and the lower rotating rod, the movable rod does not need to be stretched by manpower, the upper rotating rod is directly rotated to drive the lower rotating rod to move up and down, so that the telescopic range of the push-pull rod can be adjusted, the labor is saved, and meanwhile, the space is also saved.
Drawings
FIG. 1 is a first view of a clamping device according to the present invention;
FIG. 2 is a second view of the clamping device of the present invention in use;
fig. 3 is a partial structural view of a moving rod in the clamping device of the present invention.
Each of fig. 1 to 3 is labeled as: 1 fixing base, 2 bracing pieces, 3 grooves, 4 limiting grooves, 5 moving rods, 6 push-pull rods, 7 rollers, 8 pressing covers, 501 upper rotating rods, 502 lower rotating rods, 503 connecting pipes, 504 protrusions, 505 circumferential through holes and 506 rotating handles.
Detailed Description
The invention is further described with reference to the following description of the drawings and specific embodiments.
Example 1
A labor-saving workpiece clamping device for a gear hobbing machine comprises a fixed seat 1, wherein a supporting rod 2 is vertically fixed at the center of the upper surface of the fixed seat 1, a downward groove 3 is formed in the center of the upper surface of the supporting rod 2, and the groove 3 extends to the middle-lower part of the supporting rod 2;
four limiting grooves 4 are uniformly distributed on the circumferential surface of the supporting rod 2, and the four limiting grooves 4 are communicated with the groove 3;
the clamping device further comprises a moving rod 5 inside the groove 3, as shown in fig. 3, the moving rod 5 comprises an upper rotating rod 501 and a lower rotating rod 502, and the periphery of the bottom end of the lower rotating rod 502 is hinged with one end of four push-pull rods 6; the four push-pull rods 6 respectively penetrate through the corresponding limiting grooves 4, so that the other ends of the push-pull rods 6 are in contact with the gear to be machined; the other end of the push-pull rod 6 is fixedly connected with a roller 7; the push-pull rod 6 is used for fixing the gear;
the bottom end of the upper rotating rod 501 is provided with an external thread; the top end of the lower rotating rod 502 is fixedly connected with a connecting pipe 503, the connecting pipe 503 is a hollow cylinder with an opening at the top, an internal thread is arranged on the inner surface of the connecting pipe 503, and the upper rotating rod 501 is rotatably connected with the lower rotating rod 502 through the matching use of the external thread and the internal thread;
the circumference of the outer surface of the upper rotary rod 501 is uniformly provided with six outward protrusions 504 along the circumferential direction, a circumferential through hole 505 is formed right above the limit groove 4, and the protrusions 504 are arranged in the circumferential through hole 505, so that the upper rotary rod 501 can perform rotary motion on the horizontal plane.
A pressing cover 8 is sleeved on the top of the upper rotating rod 501, and the pressing cover 8 is used for further pressing the gear; the top of the upper rotating rod 501 is further connected with a rotating handle 506 through a hinge, and when a gear needs to be placed, the rotating handle 506 and the upper rotating rod 504 are located on the same straight line, as shown in fig. 1; when the gear is completely placed and the pressing cover 8 is covered, the rotating handle 506 is perpendicular to the upper rotating rod 501, as shown in fig. 2.
The outer surface at the top of the moving rod 5 is provided with external threads, a vertical through hole is formed in the center of the pressing cover 8, internal threads are formed in the inner surface of the through hole, and the pressing cover 8 is sleeved on the moving rod through the matching of the internal threads and the external threads.
Example 2
A labor-saving workpiece clamping device for a gear hobbing machine comprises a fixed seat 1, wherein a supporting rod 2 is vertically fixed at the center of the upper surface of the fixed seat 1, a downward groove 3 is formed in the center of the upper surface of the supporting rod 2, and the groove 3 extends to the middle-lower part of the supporting rod 2;
four limiting grooves 4 are uniformly distributed on the circumferential surface of the supporting rod 2, and the four limiting grooves 4 are communicated with the groove 3;
the clamping device further comprises a moving rod 5 inside the groove 3, wherein the moving rod 5 comprises an upper rotating rod 501 and a lower rotating rod 502, and the periphery of the bottom end of the lower rotating rod 502 is hinged with one end of four push-pull rods 6; the four push-pull rods 6 respectively penetrate through the corresponding limiting grooves 4, so that the other ends of the push-pull rods 6 are in contact with the gear to be machined; the other end of the push-pull rod 6 is fixedly connected with a roller 7; the push-pull rod 6 is used for fixing the gear;
the bottom end of the upper rotating rod 501 is provided with an external thread; the top end of the lower rotating rod 502 is fixedly connected with a connecting pipe 503, the connecting pipe 503 is a hollow cylinder with an opening at the top, an internal thread is arranged on the inner surface of the connecting pipe 503, and the upper rotating rod 501 is rotatably connected with the lower rotating rod 502 through the matching use of the external thread and the internal thread;
the circumferential surface of the outer surface of the upper rotary rod 501 is provided with a protrusion 504 which is outward along the circumferential direction, the protrusion 504 is a cylinder which wraps the upper rotary rod 501, and the protrusion and the upper rotary rod 501 are concentric circles.
A circumferential through hole 505 is formed right above the limit groove 4, and the protrusion 504 is installed in the circumferential through hole 505, so that the upper rotary rod 501 can rotate on a horizontal plane.
A pressing cover 8 is sleeved on the top of the upper rotating rod 501, and the pressing cover 8 is used for further pressing the gear; the top of the upper rotating rod 501 is further connected with a rotating handle 506 through a hinge, and when a gear needs to be placed, the rotating handle 506 and the upper rotating rod 504 are located on the same straight line, as shown in fig. 1; when the gear is completely placed and the pressing cover 8 is covered, the rotating handle 506 is perpendicular to the upper rotating rod 501, as shown in fig. 2.
The outer surface at the top of the moving rod 5 is provided with external threads, a vertical through hole is formed in the center of the pressing cover 8, internal threads are formed in the inner surface of the through hole, and the pressing cover 8 is sleeved on the moving rod through the matching of the internal threads and the external threads.
The use process of the clamping device is as follows: before the gear is placed, the moving rod is lifted, the push-pull rod is in a contraction state as shown in figure 2, and the gear is placed on the fixed seat; compressing the movable rod, and slowly expanding the push-pull rod through the limiting groove as shown in 1 until the connecting part of the roller and the inner wall of the gear is kept still, so as to fix the gear; the fixation of the exit wheel is further enhanced by rotating the hold-down cap. In order to save manpower, the moving rod is split into an upper rotating rod and a lower rotating rod, the upper rotating rod drives the upper rotating rod to rotate on the same horizontal plane by rotating the top of the upper rotating rod, and the lower rotating rod is fixed in a corresponding limiting groove through a push-pull rod, so that the rotating rod is considered to move up and down under the rotation of the upper rotating rod and under the assistance of internal and external threads, and the telescopic range of the push-pull rod is controlled.
Claims (9)
1. A labor-saving workpiece clamping device for a gear hobbing machine comprises a fixed seat, wherein a supporting rod is vertically fixed at the center of the upper surface of the fixed seat, a downward groove is formed in the center of the upper surface of the supporting rod, and the groove extends to the middle lower part of the supporting rod;
a plurality of limiting grooves are uniformly distributed on the circumferential surface of the supporting rod, and are communicated with the grooves;
the clamping device is characterized by further comprising a moving rod arranged in the groove, wherein the moving rod comprises an upper rotating rod and a lower rotating rod, and the periphery of the bottom end of the lower rotating rod is movably connected with one end of each of a plurality of push-pull rods; the plurality of push-pull rods respectively penetrate through the corresponding limiting grooves, so that the other ends of the push-pull rods are in contact with the gear to be machined; the push-pull rod is used for fixing the gear;
the bottom end of the upper rotating rod is provided with an external thread; the top end of the lower rotating rod is fixedly connected with a connecting pipe, the connecting pipe is a hollow cylinder with an opening at the top, an internal thread is arranged on the inner surface of the connecting pipe, and the upper rotating rod is rotatably connected with the lower rotating rod through the matching of the external thread and the internal thread;
the outer surface of the upper rotating rod is provided with outward bulges along the circumferential direction, a circumferential through hole is formed right above the limiting groove, and the bulges are arranged in the circumferential through hole, so that the upper rotating rod can rotate on a horizontal plane.
2. The power-saving workpiece clamping device for a hobbing machine as claimed in claim 1, characterized in that said projections are in even number and are respectively arranged symmetrically.
3. The power-saving workpiece clamping device for a gear hobbing machine of claim 1, wherein the protrusion is a cylinder wrapping the upper rotary rod and is concentric with the upper rotary rod.
4. The labor-saving workpiece clamping device for the gear hobbing machine as claimed in claim 1, wherein a pressing cover is sleeved on the top of the upper rotating rod and used for further pressing the gear.
5. The power-saving workpiece clamping device for the gear hobbing machine as claimed in claim 1, wherein a rotary handle is further connected to the top of the upper rotary rod through a hinge.
6. The power-saving workpiece clamping device for the gear hobbing machine as claimed in claim 1, wherein the other end of the push-pull rod is fixedly connected with a roller.
7. The power saving workpiece clamping device for a gear hobbing machine of claim 1, characterized in that the movable connection between the lower rotary rod and the push-pull rod is an articulated connection.
8. The labor-saving workpiece clamping device for the gear hobbing machine as claimed in claim 4, wherein the outer surface of the top of the moving rod is provided with external threads, the center of the pressing cover is provided with a vertical through hole, the inner surface of the through hole is provided with internal threads, and the pressing cover is sleeved on the moving rod through the matching of the internal threads and the external threads.
9. The power-saving workpiece clamping device for the gear hobbing machine as claimed in claim 1, wherein the number of the plurality of push-pull rods is the same as the number of the limiting grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111021.5A CN110935958A (en) | 2018-09-22 | 2018-09-22 | Labor-saving workpiece clamping device for gear hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811111021.5A CN110935958A (en) | 2018-09-22 | 2018-09-22 | Labor-saving workpiece clamping device for gear hobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110935958A true CN110935958A (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811111021.5A Pending CN110935958A (en) | 2018-09-22 | 2018-09-22 | Labor-saving workpiece clamping device for gear hobbing machine |
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| Country | Link |
|---|---|
| CN (1) | CN110935958A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756711A (en) * | 2021-03-15 | 2021-05-07 | 珠海市隽达精密制造有限公司 | Gear machining fixing tool |
| CN113070535A (en) * | 2021-05-14 | 2021-07-06 | 江苏飞船股份有限公司 | Gear machining multistation cutting device |
-
2018
- 2018-09-22 CN CN201811111021.5A patent/CN110935958A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112756711A (en) * | 2021-03-15 | 2021-05-07 | 珠海市隽达精密制造有限公司 | Gear machining fixing tool |
| CN113070535A (en) * | 2021-05-14 | 2021-07-06 | 江苏飞船股份有限公司 | Gear machining multistation cutting device |
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Application publication date: 20200331 |
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| WD01 | Invention patent application deemed withdrawn after publication |