CN211248639U - Driven bevel gear mills tooth anchor clamps - Google Patents
Driven bevel gear mills tooth anchor clamps Download PDFInfo
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- CN211248639U CN211248639U CN201922045245.7U CN201922045245U CN211248639U CN 211248639 U CN211248639 U CN 211248639U CN 201922045245 U CN201922045245 U CN 201922045245U CN 211248639 U CN211248639 U CN 211248639U
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Abstract
The utility model discloses a driven bevel gear milling fixture, which comprises a fixture body assembly and a pull shaft assembly; the clamp body assembly comprises a body, a positioning disc, a cover plate, a pressing plate, a clamping jaw, a pull rod mechanism and an elastic ejector rod mechanism; a positioning disc is arranged outside the boss of the body, a cover plate is arranged at the front end of the body, and a cover is arranged in the center of the front end of the cover plate; the pressing plate is rotatably connected to the front end of the cover plate through an elastic ejector rod mechanism, the clamping jaw is installed between the body and the cover plate, and a clamping jaw telescopic limiting mechanism is arranged between the clamping jaw and the body; the pull rod mechanism is axially arranged in the center of the body, the front end of a pull rod of the pull rod mechanism is provided with a conical part, the conical part is matched with the conical surface at the front end of the body, and the conical part at the front end of the pull rod is abutted against the inner side of the clamping jaw; the elastic ejector rod mechanism penetrates through the cover plate and the body, the front end of the elastic ejector rod mechanism is rotatably connected with the pressing plate, and the rear end of the elastic ejector rod mechanism is connected with the pull shaft assembly through a limiting pin; the pull shaft assembly and the pull rod mechanism are coaxially arranged, and the front end of the pull shaft assembly is opposite to the rear end of the pull rod.
Description
Technical Field
The utility model relates to a mill tooth machine anchor clamps, concretely relates to driven bevel gear mills tooth anchor clamps.
Background
In the process flow processing of the driven bevel gear of the axle speed reducer, the clamp scheme of the hot front gear cutting processing procedure is basically a large plane positioning, inner hole positioning and elastic clamping mode. Along with the improvement of the aspects of tool equipment, cutting tools, auxiliary equipment and the like, the high-speed and flexible green manufacturing characteristics are presented, the gear cutting processing is changed from wet cutting to dry cutting, the rotating speed is increased from 50m/min to 200m/min, the single-piece time is shortened from 14 minutes/piece to 5.5 minutes/piece, and the single-time cutting amount is large; meanwhile, in order to adapt to mixed flow production of various types, the clamp needs to consider the influences of various factors such as universality, tolerance value between the clamp and the size of a workpiece and the like, sometimes the workpiece is not tightly clamped, so that the cutter is broken and a machine tool is damaged. At present, when the driven bevel gear is milled, the modes of large plane positioning, inner hole positioning and elastic clamping are mostly adopted. In the prior art, the bevel gear is manually clamped and pressed by a pressing plate, but the upper part and the lower part are inconvenient.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a driven bevel gear milling fixture, during milling, under the condition of large plane and inner hole positioning, the inner hole is clamped through a clamping jaw, and meanwhile, a pressing plate pressing mode is added, so that the pressing force of a workpiece is increased, the workpiece is effectively prevented from rotating, the stability is increased, the quality is ensured, and the damage of a cutter and a machine tool is reduced; meanwhile, the inner hole positioning of parts with different sizes can be accurately adjusted according to the size of the inner hole of the part, different types of parts can be quickly replaced, and the problem that the production efficiency is influenced by frequently replacing the clamp is solved.
The utility model aims at realizing through the following technical scheme, combine the attached drawing:
a driven bevel gear milling clamp comprises a clamp body assembly and a pull shaft assembly; the clamp body assembly comprises a body 13, a positioning disc 14, a cover plate 18, a pressing plate 23, a clamping jaw 17, a pull rod mechanism and an elastic ejector rod mechanism; a positioning disc 14 is arranged outside a boss of the body 13, a cover plate 18 is arranged at the front end of the body 13, and a cover 21 is arranged in the center of the front end of the cover plate 18; the pressure plate 23 is rotatably connected to the front end of the cover plate 18 through an elastic mandril mechanism, the jaw 17 is installed between the body 13 and the cover plate 18, and a jaw telescopic limiting mechanism is arranged between the jaw 17 and the body 13; the pull rod mechanism is axially arranged in the center of the body 13, the front end of a pull rod 20 of the pull rod mechanism is provided with a conical part which is matched with the conical surface of the front end of the body 13, and the conical part of the front end of the pull rod 20 is abutted against the inner side of the clamping jaw; the elastic ejector rod mechanism penetrates through the cover plate 18 and the body 13, the front end of the elastic ejector rod mechanism is rotatably connected with the pressing plate 23, and the rear end of the elastic ejector rod mechanism is connected with the pull shaft assembly through a limiting pin 31; the pull shaft assembly and the pull rod mechanism are coaxially arranged, and the front end of the pull shaft assembly is opposite to the rear end of the pull rod 20.
Further, the number of the pressing plates 23 and the number of the clamping jaws 17 are respectively 3, 3 pressing plates 23 are uniformly distributed along the circumferential direction, 3 clamping jaws 17 are uniformly distributed along the circumferential direction, and the pressing plates 23 and the clamping jaws 17 are distributed at intervals.
Furthermore, the inner side of the clamping jaw is a conical surface matched with the conical part at the front end of the pull rod 20, and the clamping jaw 17 is provided with a long groove; the jack catch 17 is a bending part, and the jack catch telescopic limiting mechanism is arranged in a gap between the jack catch 17 and the body 13; the jaw telescopic limiting mechanism comprises two screws, stop blocks 15 are mounted on the two screws, a spring 19 is arranged between the two stop blocks 15, one screw is in threaded connection with the body, and the other screw is connected with an elongated slot on the jaw 17.
Further, the pull rod mechanism comprises a pull rod 20 and a disc spring 12, the rear end of the pull rod 20 is in threaded connection with a lock nut 9, the lock nut 9 is connected with a base nut 10 through a screw 30, a screw 8 is axially arranged on the pull rod 20, and the screw 8 is screwed and loosened by using a special spanner 32; one end of a belleville spring 12 is connected with the body 13, and the other end of the belleville spring 12 is connected with the base nut 10 through a washer 11.
Further, the elastic mandril mechanism comprises a spiral sleeve 25, the spiral sleeve 25 is installed in the body 13, a spiral rod 28 is installed in the spiral sleeve 25, a rectangular spring 26 is arranged between the front end of the spiral rod 28 and the spiral sleeve 25, and a cylindrical pin 29 is arranged on the spiral rod; the front end of the screw sleeve 25 is connected with the pressure plate 23 through a screw, and the rear end of the screw rod 28 is connected with the pull shaft assembly through a limiting pin 31.
Further, the pull shaft assembly comprises a pull shaft 1, the pull shaft 1 is in threaded connection with one end of a connecting rod 4 through a right baffle disc 2, the other end of the connecting rod 4 is provided with a limiting plate 5 and is fixed through a round nut 7 and a spherical washer 6, and the limiting plate is connected with an elastic ejector rod mechanism through a limiting pin.
Drawings
Fig. 1 is a front sectional view of a driven bevel gear milling fixture of the present invention;
fig. 2 is a schematic structural view of the body 13;
FIG. 3 is a schematic structural view of the positioning plate 14;
fig. 4 is a schematic structural view of the cover plate 18;
fig. 5 is a schematic structural view of the cover 21;
fig. 6 is a schematic structural view of the jaw 17;
FIG. 7 is a schematic structural view of the stopper 15;
fig. 8 is a schematic structural view of the pull rod 20;
fig. 9 is a schematic structural view of the lock nut 9;
fig. 10 is a schematic structural view of the base nut 10;
fig. 11 is a structural schematic view of the gasket 11;
FIG. 12 is a schematic structural view of the pressing plate 23;
fig. 13 is a schematic structural view of the screw sleeve 25;
fig. 14 is a schematic structural view of the rectangular spring 26;
FIG. 15 is a schematic view of the screw 28;
fig. 16 is a schematic structural view of the spherical pad 27;
fig. 17 is a schematic structural view of the pull shaft 1;
fig. 18 is a schematic structural view of the left baffle disc 2;
fig. 19 is a schematic structural view of the limiting plate 5;
fig. 20 is a structural schematic view of the extension rod 4;
fig. 21 is a structural schematic view of the spherical washer 6;
fig. 22 is a schematic structural view of the round nut 7;
fig. 23 is a schematic structural view of the stopper pin 31;
fig. 24 is a schematic view of the collation mechanism.
In the figure: 1-pulling a shaft; 2-right baffle disc; 3-a first hexagon socket head cap screw; 4-connecting rod; 5-a limiting plate; 6-spherical washer; 7-round nuts; 8-a flat end holding screw of an inner hexagon; 9-locking the nut; 10-a base nut; 11-a washer; 12-a belleville spring; 13-a body; 14-positioning plate; 15-a block; 16-second hexagon socket cap screw; 17-a jaw; 18-a cover plate; 19-a spring; 20-a pull rod; 21-cover; 22-screw number one; 23-a platen; 24-third hexagon socket cap screw; 25-a spiral sleeve; 26-rectangular springs; 27-a spherical pad; 28-a screw rod; 29-cylindrical pin; 30-screw number two; 31-a spacing pin; 32-special spanner.
Detailed Description
The technical scheme of the utility model is described in detail with the attached drawings as follows:
the utility model provides a driven bevel gear mills tooth anchor clamps, includes anchor clamps body assembly and axle assembly that draws, and anchor clamps body assembly includes body 13, and body 13 boss is outer through screw installation positioning disk 14, and body 13 front end is installed apron 18 through the screw, and apron 18 front end central authorities install the lid 21 through a screw 22. 3 clamp plates 23 are rotatably connected to the front end of the cover plate 18 through elastic mandril mechanisms respectively, 3 clamping jaws 17 are installed between the body 13 and the cover plate 18 through clamping jaw telescopic limiting mechanisms respectively, and the clamping jaws 17 are radially limited and stretched through the clamping jaw telescopic limiting mechanisms. 3 clamp plates 23 are evenly distributed along the circumferential direction, 3 clamping jaws 17 are also evenly distributed along the circumferential direction, and the clamp plates 23 and the clamping jaws 17 are distributed at intervals. The elastic ejector rod mechanism penetrates through the cover plate 18 and the body 13, the front end of the elastic ejector rod mechanism is rotatably connected with the pressing plate 23, and the rear end of the elastic ejector rod mechanism is connected with the pull shaft assembly through a limiting pin 31; the pull rod mechanism is axially arranged in the center of the body 13, the front end of the pull rod 20 is provided with a conical part, the conical part is matched with the conical surface of the front end of the body 13, the conical part of the front end of the pull rod 20 is abutted against the inner side of the clamping jaw, and the clamping jaw is pushed to radially extend through the conical part; the pull shaft assembly is coaxial with the pull rod mechanism, and the front end of the pull shaft assembly is opposite to the rear end of the pull rod 20. The part is positioned by means of 3 jaws 17 and a positioning plate 14 and clamped by means of 3 clamping plates 23.
The jack catch 17 is the part of buckling, and the flexible stop gear of jack catch installs in the space between jack catch 17 and body 13. The inner side of the claw is a conical surface matched with the conical part at the front end of the pull rod 20, and the claw 17 is provided with a long groove. The jaw telescopic limiting mechanism comprises two second socket head cap screws 16, stop blocks 15 arranged on the second socket head cap screws 16 and springs 19 abutted between the two stop blocks 15, one second socket head cap screw 16 is connected with an M5 internal thread on the body 13, and the other second socket head cap screw 16 is connected with an elongated slot on the jaw 17. The pull rod 20 moves backwards, and when the clamping jaws are pushed outwards, the clamping jaws are limited through the clamping jaw telescopic limiting mechanism; when the pull rod moves forwards, the clamping jaws return under the action of the spring force of the clamping jaw telescopic limiting mechanism.
The pull rod mechanism comprises a pull rod 20 and a disc spring 12, the front end of the pull rod 20 is provided with a conical part, the conical part is matched with the conical surface of the front end of the body 13, the rear end of the pull rod 20 is in threaded connection with a locking nut 9, the locking nut 9 is connected with a base nut 10 through a second screw 30, the pull rod 20 is axially provided with an inner hexagonal flat end fastening screw 8, and the inner hexagonal flat end fastening screw 8 is screwed and loosened by using a special wrench 32. One end of a belleville spring 12 is connected with the body 13, and the other end of the belleville spring 12 is connected with the base nut 10 through a washer 11 and further connected with the pull rod 20. The clamp is characterized in that a pull rod 20 is pre-tightened by a disc spring 12 to move backwards, and the conical surface of the conical part is used for pushing the clamping jaws to radially extend out, so that three clamping jaws 17 are tensioned. The pull shaft assembly pushes the rod mechanism forwards, the pull rod moves forwards, the conical surface of the clamping jaw is always contacted with the conical part, and the clamping jaw is retracted inwards under the pushing of the clamping jaw telescopic limiting mechanism.
When the clamp is installed, the pressing plate 23 is not installed temporarily, the clamp is provided with the excircle sleeve calibration piece, the clamp is pre-tightened by using the special spanner 32 through the disc spring 12, the machine tool pull rod is installed in a loosening state, and the pressing plate 23 is installed after the machine tool set screw 8 is tightened. Thus, the adjustment is completed.
The elastic ejector rod mechanism comprises a spiral sleeve 25, 3 phi 32 through holes are formed in the body 13, the through holes are used for passing through the spiral sleeve 25, the spiral sleeve 25 sleeves a spiral rod 28, the spiral rod 28 is installed in the spiral sleeve 25, a rectangular spring 26 is arranged between the front end of the spiral rod 28 and the spiral sleeve 25, a spherical cushion 27 is arranged between the spiral rod 28 and the rectangular spring 26, and a cylindrical pin 29 is arranged on the spiral rod for limiting. Be equipped with 2 chutes on the spiral shell 25, cylindric lock 29 passes behind the hob 28 joint on 2 chutes of spiral shell 25, makes the chute and the hob 28 sliding connection of spiral shell. The screw 28 moves backwards and the rectangular spring 26 springs back to the screw sleeve and simultaneously rotates back through the chute. The lower ends of the 3 screw rods are connected with 3 limit pins 31. The upper ends of the 3 screw sleeves are fixed with a pressure plate 23 through a third hexagon socket head cap screw 24. The pressing plate is connected with a pull shaft assembly through an elastic ejector rod mechanism, the pull shaft 1 is connected with a machine tool, the pull shaft 1 pulls three screw rods 28 backwards, so that the screw sleeve 25 rotates to drive the pressing plate 23 to rotate and press a part for fixing and clamping; the pull shaft 1 pushes the screw rod 28 forwards, the screw sleeve 25 drives the pressure plate 23 to rotate in the direction to loosen the part, and the part is convenient to take down.
The pull shaft assembly comprises a pull shaft 1, the pull shaft 1 is connected with one end of a connecting rod 4 through a right baffle disc 2 and a first hexagon socket head cap screw 3, and the other end of the connecting rod 4 is connected with a limiting plate 5 through a round nut 7 and a spherical washer 6. The limiting plate is provided with 3 slotted holes and is connected with the limiting plate and a screw rod of the elastic mandril mechanism through a limiting pin 31.
The following brief introduction the utility model discloses the theory of operation:
the working mode of the gear milling clamp is that a large plane and an inner hole are used for positioning, the inner hole is clamped, and the small end face is compressed, so that the clamping force of the clamp is improved, and the rotation of parts is prevented when the cutting force is large. When in clamping, the large plane is positioned, the three clamping jaws extend out of an inner hole of the tension bevel gear, and the bevel gear is tightly pressed by a pressing plate arranged on the clamp; when the clamp is loosened, the three clamping jaws are recovered, the inner hole is loosened, and the pressing plate rotates to the inner side of the clamp through the elastic ejector rod mechanism, so that the positioning of the upper workpiece and the lower workpiece is prevented from being influenced.
Claims (6)
1. A driven bevel gear milling clamp is characterized by comprising a clamp body assembly and a pull shaft assembly; the clamp body assembly comprises a body (13), a positioning disc (14), a cover plate (18), a pressing plate (23), a clamping jaw (17), a pull rod mechanism and an elastic ejector rod mechanism; a positioning disc (14) is arranged outside a boss of the body (13), a cover plate (18) is arranged at the front end of the body (13), and a cover (21) is arranged in the center of the front end of the cover plate (18); the pressure plate (23) is rotatably connected to the front end of the cover plate (18) through an elastic ejector rod mechanism, the clamping jaw (17) is installed between the body (13) and the cover plate (18), and a clamping jaw telescopic limiting mechanism is arranged between the clamping jaw (17) and the body (13); the pull rod mechanism is axially arranged in the center of the body (13), the front end of a pull rod (20) of the pull rod mechanism is provided with a conical part, the conical part is matched with the conical surface of the front end of the body (13), and the conical part of the front end of the pull rod (20) is abutted against the inner side of the clamping jaw; the elastic ejector rod mechanism penetrates through the cover plate (18) and the body (13), the front end of the elastic ejector rod mechanism is rotatably connected with the pressing plate (23), and the rear end of the elastic ejector rod mechanism is connected with the pull shaft assembly through a limiting pin (31); the pull shaft assembly and the pull rod mechanism are coaxially arranged, and the front end of the pull shaft assembly is opposite to the rear end of the pull rod (20).
2. The driven bevel gear milling fixture according to claim 1, wherein the number of the pressing plates (23) and the number of the clamping jaws (17) are 3, the 3 pressing plates (23) are uniformly distributed along the circumferential direction, the 3 clamping jaws (17) are also uniformly distributed along the circumferential direction, and the pressing plates (23) and the clamping jaws (17) are distributed at intervals.
3. The driven bevel gear milling fixture according to claim 1, wherein the inner side of the jaw is a tapered surface that fits the tapered portion of the front end of the tie rod (20), and the jaw (17) is provided with an elongated slot; the jack catch (17) is a bending part, and the jack catch telescopic limiting mechanism is arranged in a gap between the jack catch (17) and the body (13); the jaw telescopic limiting mechanism comprises two screws, stop blocks (15) are mounted on the two screws, a spring (19) is arranged between the two stop blocks (15), one screw is in threaded connection with the body, and the other screw is connected with an elongated slot on the jaw (17).
4. The driven bevel gear milling fixture according to claim 1, wherein the pull rod mechanism comprises a pull rod (20) and a belleville spring (12), the rear end of the pull rod (20) is screwed with a locking nut (9), the locking nut (9) is connected with a base nut (10) through a screw, the pull rod (20) is axially provided with a screw, and the screw is tightened and loosened by using a special spanner (32); one end of the disc spring (12) is connected with the body (13), and the other end of the disc spring (12) is connected with the base nut (10) through the washer (11).
5. The driven bevel gear milling fixture according to claim 1, wherein the elastic ejector rod mechanism comprises a spiral sleeve (25), the spiral sleeve (25) is installed in the body (13), the front end of the spiral sleeve (25) is connected with the pressure plate (23) through a screw, inclined grooves are formed in the spiral sleeve (25), the spiral rod (28) is installed in the spiral sleeve (25) and is in sliding connection with the inclined grooves of the spiral sleeve (25) through a cylindrical pin (29); a rectangular spring (26) is arranged between the front end of the screw rod (28) and the screw sleeve (25), and the rear end of the screw rod (28) is connected with a pull shaft assembly through a limiting pin (31).
6. The driven bevel gear milling fixture according to claim 1, wherein the pull shaft assembly comprises a pull shaft (1), the pull shaft (1) is in threaded connection with one end of a connecting rod (4) through a right baffle disc (2), the other end of the connecting rod (4) is provided with a limiting plate (5) and is fixed through a round nut (7) and a spherical washer (6), and the limiting plate is connected with the elastic ejector rod mechanism through a limiting pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922045245.7U CN211248639U (en) | 2019-11-25 | 2019-11-25 | Driven bevel gear mills tooth anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922045245.7U CN211248639U (en) | 2019-11-25 | 2019-11-25 | Driven bevel gear mills tooth anchor clamps |
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| Publication Number | Publication Date |
|---|---|
| CN211248639U true CN211248639U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922045245.7U Active CN211248639U (en) | 2019-11-25 | 2019-11-25 | Driven bevel gear mills tooth anchor clamps |
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| CN (1) | CN211248639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091254A (en) * | 2020-08-26 | 2020-12-18 | 江西昌河航空工业有限公司 | Inner hole clamping device |
| CN112404610A (en) * | 2020-10-28 | 2021-02-26 | 宜昌长机科技有限责任公司 | Gear shaping clamp for involute spline of internal tooth of driving wheel and operation method |
-
2019
- 2019-11-25 CN CN201922045245.7U patent/CN211248639U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091254A (en) * | 2020-08-26 | 2020-12-18 | 江西昌河航空工业有限公司 | Inner hole clamping device |
| CN112404610A (en) * | 2020-10-28 | 2021-02-26 | 宜昌长机科技有限责任公司 | Gear shaping clamp for involute spline of internal tooth of driving wheel and operation method |
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