CN217749364U - Compact parallel drive type double-chuck lathe spindle system - Google Patents
Compact parallel drive type double-chuck lathe spindle system Download PDFInfo
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- CN217749364U CN217749364U CN202221499816.XU CN202221499816U CN217749364U CN 217749364 U CN217749364 U CN 217749364U CN 202221499816 U CN202221499816 U CN 202221499816U CN 217749364 U CN217749364 U CN 217749364U
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Abstract
The utility model discloses a two chuck lathe main shaft systems of compact parallel drive formula, it includes: the main shaft and the auxiliary main shaft are of hollow shaft structures, and form 3 sealing cavity structures Q1, Q2 and Q3 together with a right hydraulic cylinder pull rod (16), a left hydraulic cylinder pull rod (17) and a left threaded sleeve (19), the main shaft (5) is provided with oil inlet and outlet holes T1, T2 and T3 correspondingly communicated with the sealing cavities, the main shaft system is matched with a hydraulic control system, and the actions of the clamping chuck A (3) and the clamping chuck B (12) are realized by controlling the volume of hydraulic oil in the 3 sealing cavities; by increasing the pressure of hydraulic oil in stages, clamping damage to the surface of a workpiece is prevented. The utility model discloses simple structure, control convenient and reliable can obtain reliable and stable location clamping major axis class part, avoid the work piece clamping to appear to warp, improve processingquality.
Description
Technical Field
The utility model relates to the field of machining, in particular to compact parallel drive formula double cassette disc lathe main shaft system.
Background
The chuck is a device used for positioning and clamping a workpiece on a lathe and ensures that the workpiece is in a correct position when being turned; the chuck has direct and important influence on machining efficiency, cost, quality and safety, so that the structural design of the chuck has practicability, economy and reliability.
A traditional lathe spindle system clamps one end of a shaft part by using a chuck, and the other end of the shaft part is turned or drilled. In order to improve the processing efficiency and progress, a double-head lathe is also developed in recent years; the method is characterized in that the middle of the shaft part is clamped by using the chuck, and the two sides of the workpiece are simultaneously turned or drilled. For major axis class part, great location, machining error can produce in single chuck clamping axle type part middle part, consequently need be equipped with two chuck clamping part middle parts to increase the span of part clamping. In the prior art, the clamping and loosening actions of the two chucks are controlled simultaneously by an electric signal sent by a numerical control system; however, since there is a slight difference in the mechanical structure and control circuit of the two chucks, it is difficult to reliably ensure the consistency of the operation of the two chucks. When the tightening/loosening actions of the two chucks are obviously inconsistent, the workpiece can be laterally deviated, and a larger positioning error is generated; even if the positioning error is limited, the workpiece and the chuck are in high-pair contact due to slight lateral deviation of the machined workpiece, mechanical damage is formed on the surface of the workpiece, and the machining quality of the workpiece is further influenced. On the other hand, although one path of control signal is shared, the actions of the two chucks are realized by two sets of motion executing mechanisms, so that the internal structure of the spindle system is more complex, and the manufacturing cost is relatively high.
The utility model provides a compact parallel-driven double-chuck lathe spindle system, which utilizes the same set of hydraulic/pneumatic device to drive the clamping and releasing actions of the double-chuck lathe spindle in parallel, can quickly and stably position a clamping workpiece, and improves the turning stability; effectively reducing the damage of the clamping action on the surface of the workpiece.
SUMMERY OF THE UTILITY MODEL
The utility model provides a compact parallel-driven double-chuck lathe spindle system, which utilizes the same set of hydraulic/pneumatic device to drive the clamping and releasing actions of the double-chuck lathe spindle in parallel, can quickly position a clamping workpiece and improve the turning stability; effectively reducing the damage of the clamping action on the surface of the workpiece.
The utility model discloses a two chuck lathe main shaft systems of compact parallel drive formula specifically include: the device comprises a main shaft servo motor, a main shaft box body, clamping chucks A and B, a main shaft and an auxiliary main shaft; the main shaft servo motor is arranged on the main shaft box body, the tail end of the main shaft servo motor is connected with a straight bevel gear, the straight bevel gear is meshed with a straight bevel gear arranged on the main shaft, and the straight bevel gear is fixed on the main shaft through a locking nut; the transmission mechanism transmits the rotary motion of the main shaft servo motor to the main shaft and the auxiliary main shaft;
the main shaft is connected with the auxiliary main shaft, and the main shaft and the auxiliary main shaft penetrate through the main shaft box body; a clamping chuck A, a main shaft flange A, a main shaft right flange, a tapered roller bearing A, a straight bevel gear, a locking nut, an oil distribution sleeve, a tapered roller bearing B, a main shaft left flange, a main shaft flange B and a clamping chuck B are sequentially arranged from one side of the main shaft to one side of the auxiliary main shaft; respectively play the role of fixing the main shaft, the auxiliary main shaft and the gear.
The main shaft and the auxiliary main shaft are of hollow shaft structures, and the inner sectional areas of the main shaft and the auxiliary main shaft are different; the main shaft, the right hydraulic cylinder pull rod, the left hydraulic cylinder pull rod and the left screw sleeve respectively form a sealing cavity Q1, a sealing cavity Q2 and a sealing cavity Q3; the main shaft is provided with an oil inlet and outlet hole T1, an oil inlet and outlet hole T2 and an oil inlet and outlet hole T3 which are arranged corresponding to the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3, hydraulic oil enters the sealing cavity from the oil inlet and outlet holes to drive the left hydraulic cylinder pull rod and the right hydraulic cylinder pull rod to move in parallel, and the left hydraulic cylinder pull rod and the right hydraulic cylinder pull rod are respectively connected with the clamping chuck A and the clamping chuck B, so that the clamping and the loosening of the clamping chuck are realized;
the specific method for realizing the clamping and the loosening of the clamping chuck comprises the following steps: the tail end of the hydraulic cylinder pull rod is provided with a wedge-shaped padding material, and the wedge-shaped padding material converts the axial movement of the pull rod into the radial movement of chuck jaws, so that the clamping and loosening actions of the chuck are realized.
Lubricating oil is stored in the space except for the installation parts in the main shaft box body, and the lubricating oil lubricates the straight bevel gear and the straight bevel gear;
preferably, the volumes of the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3 are changed synchronously with the injection volume of hydraulic oil, the cavities Q1 and Q3 respectively belong to driving cavities for driving the loosening action of the clamping chuck A and the clamping chuck B, and the cavity Q2 is a driving cavity for driving the clamping action of the clamping chuck A and the clamping chuck B;
preferably, a bone-shaped sealing ring A is arranged at the contact end of the sealing cavity Q1 and the left screw sleeve, a bone-shaped sealing ring B is arranged at the contact end of the sealing cavity Q2 and the left hydraulic cylinder pull rod, and a bone-shaped sealing ring C is arranged at the contact end of the sealing cavity Q3 and the main shaft;
preferably, an O-shaped sealing ring A is arranged on the inner side of the left screw sleeve matched with the main shaft, an O-shaped sealing ring B is arranged on the inner side of the left hydraulic cylinder pull rod matched with the main shaft, and an O-shaped sealing ring C is arranged on the inner side of the right hydraulic cylinder pull rod matched with the main shaft;
preferably, the right hydraulic cylinder pull rod is in threaded connection with a transmission mechanism inside the clamping chuck A, the left hydraulic cylinder pull rod is in threaded connection with a transmission mechanism inside the clamping chuck B, and axial movement of the right hydraulic cylinder pull rod and the left hydraulic cylinder pull rod is driven by power to be converted into radial movement of clamping jaws of the clamping chuck A and the clamping chuck B, so that clamping and loosening of a workpiece are realized;
the side of the outer end face of the right hydraulic cylinder pull rod is provided with a dustproof check ring for preventing slag and metal particles on the surface of a workpiece from entering a gap between the right hydraulic cylinder pull rod and the left hydraulic cylinder pull rod;
preferably, the dustproof retainer ring is made of rubber or nylon, and the inner diameter of the dustproof retainer ring is 1-10mm smaller than the minimum outer diameter of the long shaft workpiece.
Pressure sensors are arranged in the sealed cavities Q1, Q2 and Q3, and the liquid pressure in the sealed cavities is monitored in real time;
in order to prevent the clamping chuck from damaging the surface of the workpiece, preferably, the liquid pressure in the sealing cavity Q2 is increased in stages during the clamping action of the clamping chuck; when the clamping chuck does not completely clamp the workpiece, the liquid pressure in the sealing cavity Q2 is 70-85% of the final clamping pressure; when the clamping chuck completely clamps the workpiece, the pressure of the liquid in the sealing cavity Q2 is increased to be the final clamping pressure;
preferably, a telescopic caliper which is horizontal to the central line of the main shaft is arranged on the side surface of the main shaft box body which is parallel to the main shaft; when the workpiece is positioned, the caliper is used for measuring the distance from the end face of the workpiece to the end face of the outer side of the clamping chuck on line, so that the positioning accuracy of the workpiece is quickly checked;
preferably, oil drain holes are respectively formed in the front end face and the rear end face of the main spindle box body, the oil drain holes in the front end face are 2 to 5mm away from the bottom of the main spindle box body, and the oil drain holes in the rear end face are 70 to 90mm away from the bottom of the main spindle box body; the volume of the hydraulic oil stored in the main spindle box body is adjusted through the two oil drain holes.
Drawings
FIG. 1 top view of a spindle system
FIG. 2A-A sectional view of the spindle system
FIG. 3 is an enlarged partial cross-sectional view of the spindle system A-A
FIG. 4 is a schematic view of a spindle system for clamping a workpiece
FIG. 5 is an isometric view ofbase:Sub>A cross-sectional view of the spindle system A-A
In the figure, 1, a spindle servo motor; 2, a main shaft box body; 3, clamping a chuck A;4, a main shaft flange A;5, a main shaft; 6, a main shaft right flange; 7, straight bevel gear; 8, locking the nut; 9, oil separating sleeve; 10, a main shaft left flange; 11, a secondary main shaft; 12, clamping a chuck B;13, a main shaft flange B;14, a straight bevel gear; 15, tapered roller bearing B;16, a right hydraulic cylinder pull rod; 17, a left hydraulic cylinder pull rod; 18, tapered roller bearing a;19, a left threaded sleeve; 20, flat bond a;21, flat bond B;22, a bone-shaped sealing ring A;23, a bone-shaped sealing ring B;24, a bone-shaped sealing ring C;25, o-ring seal a;26, O-shaped seal ring B;27, O-ring seal C;28, a dust-proof check ring; 29, workpiece.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following embodiments are provided to help better understand the technical principle of the present invention, and the scope of the present invention is not limited to the following embodiments; with the utility model discloses similar technical scheme all belongs to the utility model discloses a protection scope.
The first embodiment.
As shown in fig. 1, 2 and 4, the spindle system includes: the main shaft servo motor 1, the main shaft box 2, the clamping chuck A3, the clamping chuck B12, the main shaft 5 and the auxiliary main shaft 11; the clamping chuck A3 and the clamping chuck B12 adopt three-jaw chucks or barrel type clamps;
the main shaft servo motor 1 is arranged on the main shaft box body 2, and the tail end of the main shaft servo motor is connected with a straight bevel gear 14; the straight bevel gear 14 is meshed with a bevel gear 7 arranged on the main shaft 5, and the bevel gear 7 is fixed on the main shaft through a locking nut 8;
the main shaft 5 and the auxiliary main shaft 11 are fixedly connected through a flat key A20 and penetrate through the main shaft box body 2; a clamping chuck A3, a main shaft flange A4, a main shaft right flange 6, a tapered roller bearing A18, a bevel gear 7, a locking nut 8, an oil distribution sleeve 9, a tapered roller bearing B15, a main shaft left flange 10, a main shaft flange B13 and a clamping chuck B12 are sequentially arranged on the circumference of one side of the main shaft to one side of the auxiliary main shaft, the main shaft and the auxiliary main shaft are fixed and driven to move through a gear, the main shaft flange A4 is connected with the main shaft 5 through a screw, the other side of the main shaft flange is fixedly embedded at the side end of the clamping chuck A3, and the locking nut 8 and a flat key B21 fix the bevel gear 7.
The main shaft 5 and the auxiliary main shaft 11 are hollow shaft structures, and form 3 sealing cavities Q1, Q2 and Q3 together with a right hydraulic cylinder pull rod 16, a left hydraulic cylinder pull rod 17 and a left threaded sleeve 19. The sealing cavity Q1 and the sealing cavity Q3 respectively drive the loosening action of the clamping chuck A3 and the clamping chuck B12, and the sealing cavity Q2 drives the clamping action of the clamping chuck A3 and the clamping chuck B12.
The main shaft is provided with an oil inlet and outlet hole T1, an oil inlet and outlet hole T2 and an oil inlet and outlet hole T3 which are respectively communicated with the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3. When hydraulic oil is respectively injected into the sealing cavity Q1 and the sealing cavity Q3 through the oil inlet and outlet hole T1 and the oil inlet and outlet hole T3, the right hydraulic cylinder pull rod 16 is driven by the hydraulic oil pressure to move leftwards by 5-50mm, and the clamping chuck A3 is driven to perform loosening action; meanwhile, the left hydraulic cylinder pull rod 17 is driven to synchronously move rightwards for the same distance, and the clamping chuck B12 is driven to perform loosening action. When the hydraulic oil in the sealing cavity Q1 and the sealing cavity Q3 is discharged and the hydraulic oil is filled into the sealing cavity Q2 through the oil inlet and outlet hole T2, the right hydraulic cylinder pull rod 16 and the left hydraulic cylinder pull rod 17 move to the right side and the left side respectively at the same time, and the clamping chuck A3 and the clamping chuck B12 are driven to perform clamping action.
According to the embodiment of the present invention, as shown in fig. 3, a bone-type sealing ring a22 is disposed at the contact end between the sealing cavity Q1 and the left screw sleeve 19, a bone-type sealing ring B23 is disposed at the contact end between the sealing cavity Q2 and the left hydraulic cylinder pull rod 17, and a bone-type sealing ring C24 is disposed at the contact end between the sealing cavity Q3 and the main shaft 5; an O-shaped sealing ring A25 is arranged on the inner side of the left threaded sleeve 19 matched with the main shaft 5, an O-shaped sealing ring B26 is arranged on the inner side of the left hydraulic cylinder pull rod 17 matched with the main shaft 5, and an O-shaped sealing ring C27 is arranged on the inner side of the right hydraulic cylinder pull rod 16 matched with the main shaft 5. The characteristics can ensure the sealing performance of each sealing cavity in the movement process, and finally the clamping chuck acts according to the set requirements.
Hydraulic oil enters the sealing cavity from the oil inlet and outlet holes to drive the left hydraulic cylinder pull rod and the right hydraulic cylinder pull rod to move in parallel, and the left hydraulic cylinder pull rod and the right hydraulic cylinder pull rod are respectively connected with the clamping chuck A3 and the clamping chuck B12, so that the clamping chuck is clamped and loosened;
the specific method for realizing the clamping and the loosening of the clamping chuck comprises the following steps: the tail end of the hydraulic cylinder pull rod is provided with a wedge-shaped padding material, and the wedge-shaped padding material converts the axial movement of the pull rod into the radial movement of chuck jaws, so that the clamping and loosening actions of the chuck are realized.
A dustproof check ring 28 is arranged on the outer end face side of the right hydraulic cylinder pull rod and used for preventing slag and metal particles on the surface of a workpiece from entering a gap between the right hydraulic cylinder pull rod and the left hydraulic cylinder pull rod; preferably, the dustproof retainer ring is made of rubber or nylon, and the inner diameter of the dustproof retainer ring is 1-10mm smaller than the minimum outer diameter of the long shaft workpiece.
The main shaft box body 2 is internally provided with a reserved space, the reserved space can store hydraulic oil flowing out of the main shaft 5, the hydraulic oil can play a role in lubricating the bevel gears 7 and the straight bevel gears 14, and the hydraulic oil can be recycled for the second time.
In order to prevent the clamping chuck from damaging the surface of the workpiece, pressure sensors are preferably arranged inside the sealing cavity Q1, the sealing cavities Q2 and Q3; in the clamping action process of the clamping chuck, the liquid pressure sensor is utilized to control the liquid pressure in the sealing cavity Q2 to rise in stages; before the clamping chuck does not completely clamp the workpiece, the pressure of the hydraulic oil in the sealing cavity Q2 is 80 percent of the final clamping pressure, namely 0.8 Mpa; when the clamping chuck completely clamps the workpiece, the pressure of the hydraulic oil in the sealing cavity Q2 rises to be the final clamping pressure, namely 1.0 Mpa.
According to the present embodiment, the lathe spindle system further includes: and pressure sensors are arranged in the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3 and are used for measuring the pressure in the sealing cavity in real time so as to judge the fault reason of the lathe spindle system. For example, when the liquid pressure in the seal cavity Q1 and the seal cavity Q3 is much greater than the normal value, but the clamping chuck is not completely loosened, it indicates that iron chips exist in the gap between the right hydraulic cylinder pull rod 16 and the left hydraulic cylinder pull rod 17; the iron chips obstruct the relative movement of the right hydraulic cylinder pull rod 16 and the left hydraulic cylinder pull rod 17, so that the hydraulic oil in the sealing cavity Q2 can not be smoothly discharged under the normal pressure condition. At this time, the gap needs to be cleaned. For another example, in the clamping or loosening process of the chuck, if a pressure difference occurs between the sealing cavity Q1 and the sealing cavity Q3, it is indicated that the mechanical structure of the clamping chuck on the side with larger pressure has larger retardation, and chip cleaning or lubrication treatment is required.
According to the utility model discloses an embodiment, this lathe spindle system further includes: a telescopic caliper which is horizontal to the central line of the spindle is arranged on the side surface of the spindle box body parallel to the spindle, the maximum measuring range is set to be 500-800mm, the center distance between two end faces of the clamping chuck A3 and the clamping chuck B12 is designed to be 1000mm, the two end faces are used as reference faces, and the caliper is used for realizing the rapid positioning operation of a machining point of a clamped workpiece; when the workpiece is positioned, the caliper is used for measuring the distance from the end face of the workpiece to the end face of the outer side of the clamping chuck on line, so that the positioning accuracy of the workpiece is quickly checked;
according to the utility model discloses an embodiment, this machine tool clamp can further include: the method is characterized in that: and the front end surface and the rear end surface of the main spindle box body are respectively provided with an oil drain hole, the distance from the front end oil drain hole to the bottom is 2-5 mm, the distance from the rear end oil drain hole to the bottom is 70-90mm, and the main spindle box body is blocked by a leakage-proof bolt when not used.
Example two.
The workpiece of the second example is a long-axis workpiece 29 having a length of 1200mm and a diameter of 100mm, as shown in FIG. 4.
Firstly, injecting hydraulic oil into a sealing cavity Q1 and a sealing cavity Q3 through an oil inlet and outlet hole T1 and an oil inlet and outlet hole T3, wherein the hydraulic oil pressure drives a right hydraulic cylinder pull rod 16 to move leftwards and drives a clamping chuck A3 to loosen; meanwhile, the hydraulic oil drives the left hydraulic cylinder pull rod 17 to move rightwards, and drives the clamping chuck B12 to perform loosening action;
second, the workpiece 29 is placed into the machining position by a human or a robot;
the third step, opening the oil inlet and outlet hole T1 and the oil inlet and outlet hole T3; hydraulic oil is filled into the sealing cavity Q2 through the oil inlet and outlet hole T2, and the right hydraulic cylinder pull rod 16 and the left hydraulic cylinder pull rod 17 synchronously move 7mm to the right side and the left side respectively to drive the clamping chuck A3 and the clamping chuck B12 to do clamping action;
fourthly, the main shaft servo motor 1 drives the straight bevel gear 14 to rotate, the straight bevel gear 14 drives the bevel gear 7 to rotate, and the bevel gear 7 drives the main shaft 5 and the auxiliary main shaft 11 to rotate, so that the turning operation is completed.
Example three.
The technical features of the third embodiment are different from those of the first and second embodiments: the power source for driving the right hydraulic cylinder pull rod 16 and the left hydraulic cylinder pull rod 17 to axially move is oil-gas mixed gas; and gas pressure sensors are arranged in the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3.
The air pressure control system is utilized to control the air pressure in the sealing cavity Q2 in the clamping action process of the clamping chuck; after the clamping chuck is controlled to completely clamp the workpiece under the constant gas pressure of 0.5 Mpa, the gas pressure in the sealing cavity Q2 is further increased by 200 percent to 1.0Mpa, so that the stability of workpiece clamping is ensured in the machining process.
The present invention is not limited to the items shown in the above embodiments. Variations and adaptations of the present invention that occur to those skilled in the art based on the description herein and the known technology are acceptable and encompassed by the present invention as claimed.
Claims (7)
1. A compact parallel drive type double-chuck lathe spindle system is characterized by comprising: the main shaft clamping device comprises a main shaft servo motor (1), a main shaft box body (2), a clamping chuck A (3), a clamping chuck B (12), a main shaft (5) and an auxiliary main shaft (11);
the main shaft servo motor (1) is arranged on the main shaft box body (2), the tail end of the main shaft servo motor is connected with a straight bevel gear (14), the straight bevel gear (14) is meshed with a bevel gear (7) arranged on the main shaft (5), and the bevel gear (7) is fixed on the main shaft through a locking nut (8);
the main shaft (5) and the auxiliary main shaft (11) are fixedly connected together through a flat key A (20) and penetrate through the main shaft box body (2); a clamping chuck A (3), a main shaft flange A (4), a main shaft right flange (6), a tapered roller bearing A (18), a bevel gear (7), a locking nut (8), an oil distribution sleeve (9), a tapered roller bearing B (15), a main shaft left flange (10), a main shaft flange B (13) and a clamping chuck B (12) are sequentially arranged from one side of the main shaft to one side of the auxiliary main shaft;
the main shaft (5) and the auxiliary main shaft (11) are of hollow shaft structures, and form a sealing cavity Q1, a sealing cavity Q2 and a sealing cavity Q3 together with a right hydraulic cylinder pull rod (16), a left hydraulic cylinder pull rod (17) and a left threaded sleeve (19); the main shaft (5) is provided with an oil inlet and outlet hole T1, an oil inlet and outlet hole T2 and an oil inlet and outlet hole T3 which are correspondingly communicated with the sealing cavity;
a bone-shaped sealing ring A (22) is arranged at the contact end of the sealing cavity Q1 and the left threaded sleeve (19), a bone-shaped sealing ring B (23) is arranged at the contact end of the sealing cavity Q2 and the left hydraulic cylinder pull rod (17), and a bone-shaped sealing ring C (24) is arranged at the contact end of the sealing cavity Q3 and the main shaft (5);
an O-shaped sealing ring A (25) is arranged on the inner side of the left threaded sleeve (19) matched with the main shaft (5), an O-shaped sealing ring B (26) is arranged on the inner side of the left hydraulic cylinder pull rod (17) matched with the main shaft (5), and an O-shaped sealing ring C (27) is arranged on the inner side of the right hydraulic cylinder pull rod (16) matched with the main shaft (5);
hydraulic oil enters the sealing cavity from the oil inlet and outlet holes to drive the left hydraulic cylinder pull rod (17) and the right hydraulic cylinder pull rod (16) to act in parallel, and the left hydraulic cylinder pull rod (17) and the right hydraulic cylinder pull rod (16) are connected with the clamping chuck A (3) and the clamping chuck B (12) respectively, so that the clamping and the loosening of the clamping chuck are realized.
2. A compact parallel drive dual chuck lathe spindle system according to claim 1, wherein: the power source for driving the right hydraulic cylinder pull rod (16) and the left hydraulic cylinder pull rod (17) to axially move is hydraulic pressure or air pressure; the movement distances of the right hydraulic cylinder pull rod (16) and the left hydraulic cylinder pull rod (17) are both 5-50mm.
3. A compact parallel drive dual chuck lathe spindle system according to claim 2, wherein: if the power source for driving the right hydraulic cylinder pull rod (16) and the left hydraulic cylinder pull rod (17) to axially move is hydraulic pressure, liquid pressure sensors are arranged in the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3;
in the clamping action process of the clamping chuck, the liquid pressure in the sealing cavity Q2 is controlled to rise in stages; when the clamping chuck does not completely clamp the workpiece, the hydraulic oil pressure in the sealing cavity Q2 is 70-85% of the final clamping pressure; when the clamping chuck clamps the workpiece, the hydraulic oil pressure in the sealing cavity Q2 rises to be the final clamping pressure.
4. A compact parallel drive dual chuck lathe spindle system according to claim 2, wherein: if the power source for driving the right hydraulic cylinder pull rod (16) and the left hydraulic cylinder pull rod (17) to axially move is air pressure, gas pressure sensors are arranged in the sealing cavity Q1, the sealing cavity Q2 and the sealing cavity Q3; the gas is oil-gas mixture mixed with tiny lubricating oil droplets; controlling the gas pressure in the sealing cavity Q2 by using a gas pressure control system in the clamping action process of the clamping chuck; after the clamping chuck clamps the workpiece, the gas pressure in the sealing cavity Q2 is further increased by 50-200%.
5. A compact parallel drive dual chuck lathe spindle system according to claim 1, wherein: a telescopic caliper which is horizontal to the central line of the spindle is arranged on the side surface of the spindle box body parallel to the spindle, and the maximum measuring range is set to be 500 to 800mm.
6. A compact parallel drive dual chuck lathe spindle system according to claim 1, wherein: and the front end surface and the rear end surface of the main spindle box body are respectively provided with an oil drain hole, the distance from the front end oil drain hole to the bottom is 2-5 mm, the distance from the rear end oil drain hole to the bottom is 70-90mm, and the main spindle box body is blocked by a leakage-proof bolt when not used.
7. A compact parallel drive dual chuck lathe spindle system according to claim 1, wherein: the clamping chuck A (3) and the clamping chuck B (12) adopt three-jaw chucks or cylindrical clamps; a dustproof retainer ring (28) is arranged on the outer end face side of the right hydraulic cylinder pull rod (16); lubricating oil is stored in the space except for the installation of all parts in the spindle box body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221499816.XU CN217749364U (en) | 2022-06-13 | 2022-06-13 | Compact parallel drive type double-chuck lathe spindle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221499816.XU CN217749364U (en) | 2022-06-13 | 2022-06-13 | Compact parallel drive type double-chuck lathe spindle system |
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| Publication Number | Publication Date |
|---|---|
| CN217749364U true CN217749364U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221499816.XU Active CN217749364U (en) | 2022-06-13 | 2022-06-13 | Compact parallel drive type double-chuck lathe spindle system |
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| Country | Link |
|---|---|
| CN (1) | CN217749364U (en) |
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2022
- 2022-06-13 CN CN202221499816.XU patent/CN217749364U/en active Active
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