CN203076602U - Direct-drive servo knife rest - Google Patents
Direct-drive servo knife rest Download PDFInfo
- Publication number
- CN203076602U CN203076602U CN 201320053682 CN201320053682U CN203076602U CN 203076602 U CN203076602 U CN 203076602U CN 201320053682 CN201320053682 CN 201320053682 CN 201320053682 U CN201320053682 U CN 201320053682U CN 203076602 U CN203076602 U CN 203076602U
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- China
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- main shaft
- gear ring
- knife rest
- direct
- ring
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Abstract
The utility model discloses a direct-drive servo knife rest. The direct-drive servo knife rest comprises a main shaft, a box body, an inner gear ring, an outer gear ring and a locking gear ring. The outer gear ring is fixedly connected on the box body. The locking gear ring can be arranged on the main shaft in an axial movement and sleeved mode. The inner gear ring is rotationally arranged in the outer gear ring. The inner gear ring is fixedly arranged at one end of the main shaft in a sleeved mode. The direct-drive servo knife rest further comprises an oil cylinder and a torque motor. The other end of the main shaft is arranged on a motor shaft of the torque motor in a sleeved mode. The torque motor is arranged on the box body. The oil cylinder is arranged on the main shaft in a sleeved mode. A piston of the oil cylinder is connected with the locking gear ring, so that the locking gear ring can axially move on the main shaft to be meshed with or separated from the inner gear ring and the outer gear ring. According to the direct-drive servo knife rest, the torque motor is adopted to directly drive the knife rest to operate, and reliability and positional accuracy of the knife rest can be improved.
Description
Technical field
The utility model relates to a kind of direct-drive type servo saddle, belongs to Digit Control Machine Tool knife rest technical field.
Background technology
At present, turning center and turnning and milling Compositions of metal-working machines are the important process equipments of industrial circles such as Aeronautics and Astronautics, military project.Numerically-controlled slide is the Core Feature parts of turning center and turnning and milling Compositions of metal-working machines, and its performance and structure directly influence the cutting ability and the stock-removing efficiency of lathe, has embodied the design and the manufacture level of lathe.The basic function of knife rest: the one, fixed cutting tool, the 2nd, realize automatic tool changer.Type of drive according to realizing the tool changing action can be divided into hand slide rest, electric driving tool post (common electric machine driving), hydraulic tool rest (fluid motor-driven), servo saddle (driven by servomotor) etc. to knife rest.Chinese invention patent 93110072. 0 discloses a kind of toothed-disc positioned tool post, and this knife rest is upper and lower fluted disc to be meshed fast by artificial rotating turret handle, and this drive form is difficult to the efficient that reaches higher.Chinese invention patent 98113481. 5 discloses a kind of common electric machine and has driven numerically-controlled slide, and the cutterhead of this knife rest leans on common electric machine to drive cam and realizes transposition and just locate that realize accurate location by fluted disc, this knife rest reliability is low, generally is used for the low side Digit Control Machine Tool.China's utility model patent 200710156376. 1 discloses a kind of novel hydraulic knife rest, and this knife rest positions cutterhead by the oil cylinder of lying prone surely, drives cutterhead by hydraulic motor and rotates, and its volume is bigger.Paper " based on the servo saddle Control System Design under the DSP " has been mentioned a kind of servo saddle, this knife rest drives the cutterhead transposition by servomotor by gear train, and the realization cutterhead is just located, accurately locate by three fluted discs realization fluted disc, the influence that this knife rest is subjected to transmission system precision when first location is relatively poor, when fine positioning, be easy to generate shock and vibration, influence machining accuracy.
Summary of the invention
Technical problem to be solved in the utility model is the defective that overcomes prior art, and a kind of direct-drive type servo saddle is provided, and it can adopt torque motor directly to drive knife rest work, improves the reliability and the positioning accuracy of knife rest.
The utility model solves the problems of the technologies described above the technical scheme of taking: a kind of direct-drive type servo saddle, comprise main shaft, casing, ring gear, external toothing and locking gear ring, external toothing is fixedly connected on the casing, the locking gear ring can be sleeved on the main shaft with moving axially, ring gear is rotatably installed in the external toothing, ring gear is fixedly set in an end of main shaft, also comprise oil cylinder and torque motor, the other end of main shaft is sleeved on the motor shaft of torque motor, torque motor is installed on the casing, oil cylinder is sleeved on the main shaft, and the piston rod of oil cylinder is connected with the locking gear ring, and gear ring can move axially on main shaft and ring gear and external toothing mesh or disengaging so that lock.
Further, the outer setting of described ring gear has cooling body, and described cooling body comprises water hole plate and drip tray, and water hole plate and drip tray all are sleeved on the outer wall of ring gear, and drip tray is between water hole plate and external toothing.
Further, on the described locking gear ring clamp is installed, and this clamp and external toothing clamping.
Further, be connected with the fit system of key by keyway between the motor shaft of described main shaft and torque motor.
After having adopted technique scheme, during start, oil cylinder moves the locking gear ring backward, locking gear ring and ring gear and external toothing break away from, the rotation of torque motor drive shaft, the rotation of drive ring gear, when ring gear forwarded ideal position to, torque motor stopped operating, and knife rest has been realized first location, at this moment, oil cylinder travels forward the locking gear ring, locking gear ring and ring gear and external toothing engagement, and knife rest has been realized accurate location, can carry out stock removal action, the utility model adopts torque motor directly to drive the ring gear rotation, adopts oil cylinder that three fluted discs are meshed and realizes accurate location, saved gear mechanism, worm mechanism, intermediate links such as cam mechanism, the driving error of having avoided middle transmission link to bring has improved the reliability and the precision of knife rest effectively; The utility model also is provided with cooling body, has reduced the thermal deformation of ring gear effectively, further increases the reliability of this knife rest; The setting of clamp can prevent that locking gear ring rotates on main shaft; The torque motor of this knife rest and main shaft adopt the connected mode of key (spline, singly-bound, two keys etc.), thereby have reduced owing to cut the influence of the vibrations of generation to torque motor; This cutter frame structure is simple, compact; It is little to take up room; Easy accessibility; The transmission efficiency height; Operate steadily; Noise is little.
Description of drawings
Fig. 1 is the structural representation of direct-drive type servo saddle of the present utility model.
The specific embodiment
Content of the present utility model is easier to be expressly understood in order to make, and according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail below.
As shown in Figure 1, a kind of direct-drive type servo saddle, comprise main shaft 5, casing 7, ring gear 3, external toothing 6 and locking gear ring 9, external toothing 6 is fixedly connected on the casing 7, locking gear ring 9 can be sleeved on the main shaft 5 with moving axially, ring gear 3 is rotatably installed in the external toothing 6, ring gear 3 is fixedly set in an end of main shaft 5, also comprise oil cylinder 10 and torque motor 12, the other end of main shaft 5 is sleeved on the motor shaft of torque motor 12, torque motor 12 is installed on the casing 7, and oil cylinder 10 is sleeved on the main shaft 5, and the piston rod of oil cylinder 5 is connected with locking gear ring 9, and gear ring 9 can move axially on main shaft 5 and ring gear 3 and external toothing 6 meshes or disengaging so that lock.The utility model adopts torque motor 12 directly to drive ring gear 3 rotations, adopt oil cylinder 10 that three fluted discs are meshed and realize accurate location, intermediate links such as gear mechanism, worm mechanism, cam mechanism have been saved, the driving error of having avoided middle transmission link to bring has improved the reliability and the precision of knife rest effectively.
In order to have reduced the thermal deformation of ring gear effectively, further increase the reliability of this knife rest, as shown in Figure 1, the outer setting of ring gear 3 has cooling body, cooling body comprises water hole plate 1 and drip tray 2, water hole plate 1 and drip tray 2 all are sleeved on the outer wall of ring gear 3, and drip tray 2 is between water hole plate 1 and external toothing 6.
In order to prevent that locking gear ring rotates on main shaft, as shown in Figure 1, on the locking gear ring 9 clamp 4 is installed, and this clamp 4 and external toothing 6 clampings.
In order to reduce since the vibrations that cutting produces to the influence of torque motor, as shown in Figure 1, be connected with the fit system of key by keyway between the motor shaft of main shaft 5 and torque motor 12.
Operation principle of the present utility model is as follows:
During start, oil cylinder 10 moves locking gear ring 9 backward, and locking gear ring 9 breaks away from ring gear 3 and external toothing 6,5 rotations of torque motor 12 drive shaft, drive ring gear 3 rotations, when ring gear 3 forwarded ideal position to, torque motor 12 stopped operating, knife rest has been realized first location, at this moment, oil cylinder 10 travels forward locking gear ring 9, locking gear ring 9 and ring gear 3 and external toothing 6 engagements, knife rest has been realized accurate location, can carry out stock removal action.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. direct-drive type servo saddle, comprise main shaft (5), casing (7), ring gear (3), external toothing (6) and locking gear ring (9), external toothing (6) is fixedly connected on the casing (7), locking gear ring (9) can be sleeved on the main shaft (5) with moving axially, ring gear (3) is rotatably installed in the external toothing (6), ring gear (3) is fixedly set in an end of main shaft (5), it is characterized in that: also comprise oil cylinder (10) and torque motor (12), the other end of main shaft (5) is sleeved on the motor shaft of torque motor (12), torque motor (12) is installed on the casing (7), oil cylinder (10) is sleeved on the main shaft (5), and the piston rod of oil cylinder (5) is connected with locking gear ring (9), and gear ring (9) can move axially on main shaft (5) and ring gear (3) and external toothing (6) engagement or disengaging so that lock.
2. direct-drive type servo saddle according to claim 1, it is characterized in that: the outer setting of described ring gear (3) has cooling body, described cooling body comprises water hole plate (1) and drip tray (2), water hole plate (1) and drip tray (2) all are sleeved on the outer wall of ring gear (3), and drip tray (2) is positioned between water hole plate (1) and the external toothing (6).
3. direct-drive type servo saddle according to claim 1 and 2 is characterized in that: clamp (4) is installed on the described locking gear ring (9), and this clamp (4) and external toothing (6) clamping.
4. direct-drive type servo saddle according to claim 1 and 2 is characterized in that: be connected with the fit system of key by keyway between the motor shaft of described main shaft (5) and torque motor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053682 CN203076602U (en) | 2013-01-31 | 2013-01-31 | Direct-drive servo knife rest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320053682 CN203076602U (en) | 2013-01-31 | 2013-01-31 | Direct-drive servo knife rest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076602U true CN203076602U (en) | 2013-07-24 |
Family
ID=48822479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320053682 Expired - Lifetime CN203076602U (en) | 2013-01-31 | 2013-01-31 | Direct-drive servo knife rest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203076602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111640A (en) * | 2013-01-31 | 2013-05-22 | 常州市宏达机床数控设备有限公司 | Direct-driving type servo knife rest |
-
2013
- 2013-01-31 CN CN 201320053682 patent/CN203076602U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111640A (en) * | 2013-01-31 | 2013-05-22 | 常州市宏达机床数控设备有限公司 | Direct-driving type servo knife rest |
| CN103111640B (en) * | 2013-01-31 | 2015-10-28 | 江苏宏达数控科技股份有限公司 | Direct-drive servo tool rest |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Yaoguan town Qi line 213011 Wujin District Jiangsu city of Changzhou province 1 8 kilometers Patentee after: JIANGSU HONGDA NUMERICAL CONTROL SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 213011, 1.8 kilometers, Qi Xiang highway, Changzhou, Jiangsu, Qishuyan Patentee before: CHANGZHOU HONGDA MACHINE TOOL CNC Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |