High-precision five-axis machining center rotating table

Abstract

The invention provides a high-precision five-axis machining center rotating table which comprises a base and a rotating disc rotationally connected with the base, a plurality of T-shaped grooves are evenly distributed in the top end of the rotating disc, a motor stator is arranged on the base, a motor rotor coupled with the motor stator is arranged on the rotating disc, and a rotating column is rotationally connected to the axis of the rotating disc. A plurality of spraying holes corresponding to the T-shaped grooves one by one are evenly distributed in the side wall of the rotating column, a liquid inlet channel communicated with the spraying holes is formed in the axis of the rotating column, the liquid inlet channel is rotationally connected with a liquid inlet pipe in a sealed mode, and the liquid inlet pipe is integrally connected with the base; an inertia reciprocating structure is arranged between the rotating column and the rotating disc, and when the rotating disc brakes, the inertia reciprocating structure can make the rotating column rotate relative to the rotating disc in a reciprocating mode within a preset angle by means of inertia of the rotating column. Metal chips at the groove bottom corner of the end, close to the axis of the rotating table, of the T-shaped groove can be effectively washed away.

Description

Technical Field

[0001] The invention relates to the technical field of machining centers, in particular to a high-precision five-axis machining center rotary table. Background Art

[0002] With the rapid development of modern manufacturing, the demand for processing parts with complex curved surfaces is increasing. Five-axis machining centers have become important equipment for processing complex curved surfaces because they can process in multiple degrees of freedom, and play an important role in aerospace, scientific research precision instruments, high-precision medical instruments and other industries.

[0003] The rotary table is one of the key components of the five-axis machining center. During the milling process of the workpiece, a mixture of milling fluid and metal chips will enter the T-slot on the rotary table and remain in the T-slot, which will adversely affect the installation of the fixture or fixture chuck. To solve this problem, the patent with application number 202111517775.2 discloses a cradle turntable chip flushing structure, which enables the water in the sealing chamber to flow to the T-slot through the outlet channel, thereby flushing away the metal chips retained in the T-slot. However, given that the diameter of the outlet channel is much smaller than the width of the T-slot, a dead water area is easily formed at the bottom corner of the T-slot near one end of the rotary table axis. In addition, due to the viscosity of the fluid, the water flow velocity close to the slot wall is relatively low, which makes it difficult to effectively flush away the metal chips at the bottom corner of the slot, and metal chips are easily accumulated. Summary of the invention

[0004] To overcome the deficiencies of the prior art, the present invention provides a high-precision five-axis machining center rotary table, which can effectively flush away metal chips at the bottom corner of the T-slot near one end of the rotary table axis.

[0005] The present invention adopts the following technical solutions.

[0006] A high-precision five-axis machining center rotary table, comprising a base and a rotating disk rotatably connected to the base, a plurality of T-shaped slots are evenly distributed on the top of the rotating disk, a motor stator is arranged on the base, and a motor rotor coupled to the motor stator is arranged on the rotating disk; The rotating disc is rotatably connected to a rotating column at the axis center, and a plurality of injection holes corresponding to the T-shaped grooves are evenly distributed on the side wall of the rotating column. A liquid inlet channel connected to the injection holes is formed at the axis center of the rotating column, and a liquid inlet pipe is sealed and rotatably connected to the liquid inlet channel, and the liquid inlet pipe is integrally connected to the base; An inertial reciprocating structure is provided between the rotating column and the rotating disk. When the rotating disk is braked, the inertial reciprocating structure can utilize the inertia of the rotating column to make the rotating column reciprocate relative to the rotating disk within a predetermined angle; When the rotating column is at the starting point of the stroke of reciprocating rotation relative to the rotating disk, the injection hole is aligned with the corresponding T-slot; When the rotating column is at the end point of the stroke of reciprocating rotation relative to the rotating disk, the injection hole is staggered with the corresponding T-slot.

[0007] Furthermore, the inertial reciprocating structure comprises a spline ring integrally sleeved on the outer side of the rotating column, and a plurality of limit blocks are evenly distributed on the outer side wall of the spline ring along its circumference; The rotating disk is integrally connected with a spline keypad, which is rotatably sleeved on the outer side of the spline ring. A plurality of stop blocks cooperating with the limit blocks are evenly distributed on the inner side wall of the spline keypad along its circumference.

[0008] Furthermore, the limit block and the stop block are both permanent magnets; A magnetic repulsive force is generated between the limiting blocks and the stop blocks adjacent to each other in the circumferential direction of the rotating disk; The stop block is provided with a buffer pad which acts on the limit block.

[0009] Furthermore, the bottom end of the rotating column is integrally connected to a flywheel coaxially therewith.

[0010] Furthermore, a flow dividing chamber connected to the liquid inlet channel is formed in the rotating column, and the flow dividing chamber is connected to the injection hole through the liquid delivery channel; The junction of the injection hole and the liquid delivery channel is connected with a valve cavity, and a valve core is sealingly and slidably connected in the valve cavity, and the distance from the valve core to the injection hole is proportional to the opening of the liquid delivery channel; The valve core is connected to a first elastic member, and the hydraulic pressure in the injection hole and the first elastic member cause the valve core to tend to move away from the injection hole; A balance chamber is formed at the axis of the rotating column, the balance chamber is connected to the end of the valve cavity facing away from the injection hole, the balance chamber is filled with hydraulic oil, and the oil pressure in the balance chamber makes the valve core tend to approach the injection hole.

[0011] Furthermore, a piston cavity connected to the balance chamber is formed at the axis of the rotating column, a piston head is sealingly and slidably connected in the piston cavity, and the piston head is connected to a second elastic member, and the second elastic member makes the piston head tend to approach the balance chamber.

[0012] Furthermore, a support cylinder is integrally connected to the base, a flange cylinder is integrally connected to the rotating disk, the flange cylinder is rotatably sleeved on the outer side of the support cylinder, a tension sleeve is integrally sleeved on the support cylinder, a pressure chamber is formed between the tension sleeve and the support cylinder, and an oil pressure channel connected to the pressure chamber is opened in the base and the support cylinder.

[0013] The beneficial effects of the present invention are: An inertial reciprocating structure is provided between the rotating column and the rotating disk of the present invention. When the rotating disk is braked, an external water pump injects cutting fluid into the liquid inlet pipe at a constant flow rate. The cutting fluid flows to the injection hole through the liquid inlet channel, and finally ejects from the injection hole to the T-slot. At the same time, the inertial reciprocating structure uses the inertia of the rotating column to make the rotating column reciprocate relative to the rotating disk within a predetermined angle. During the reciprocating rotation of the rotating column, when part of the cross section of the injection hole is blocked by the rotating disk, the flow cross-sectional area of ​​the injection hole is reduced, thereby increasing the flow rate of the water flow, and the injection hole at this time is aligned with the bottom angle of the T-slot close to one end of the axis of the rotating disk, thereby effectively flushing away the metal chips there.

[0014] In addition, in the process of the injection hole changing from being aligned with the corresponding T-slot to being offset, and in the process of changing from being offset to being aligned with the corresponding T-slot, the flow cross-sectional area of ​​the injection hole changes dynamically, so that the water flow ejected from the injection hole has a turbulent effect and forms a pulsed water flow, which destroys the adhesion between the molten metal and the wall of the T-slot and promotes the removal of metal chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural schematic diagram of this embodiment; Figure 2 for Figure 1 A magnified view of part A; Figure 3 for Figure 1 A magnified view of part B; Figure 4 for Figure 1 CC section view; Figure 5 for Figure 1 DD section view; Figure 6 Schematic diagram of the structure of the rotating column of this embodiment (the injection hole and the T-slot are staggered at this time).

[0017] Description of reference numerals: Base 1, Rotating plate 2, T-slot 21, Motor stator 31, motor rotor 32, support cylinder 33, flange cylinder 34, tension sleeve 35, pressure chamber 351, oil pressure channel 352, Rotating column 4, injection hole 41, liquid inlet channel 42, diversion chamber 43, liquid delivery channel 44, valve chamber 45, balance chamber 46, piston chamber 47, Liquid inlet pipe 5, Inertial reciprocating structure 6, Spline ring 61, limit block 611, Spline 62, stopper 621, buffer pad 622, Flywheel 63, Valve core 71, first elastic member 72, Piston head 81, second elastic member 82. DETAILED DESCRIPTION

[0018] The drawings are only used for illustrative purposes and should not be construed as limitations of this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product.

[0019] For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The technical solution of the present invention is further described below in conjunction with the drawings and embodiments.

[0020] As shown in the attached drawings, a high-precision five-axis machining center rotary table comprises a base 1 and a rotating disk 2 rotatably connected to the base 1, a plurality of T-slots 21 are evenly distributed on the top of the rotating disk 2, a motor stator 31 is provided on the base 1, and a motor rotor 32 coupled to the motor stator 31 is provided on the rotating disk 2; The rotating disc 2 is rotatably connected to a rotating column 4 at its axis. The side wall of the rotating column 4 is evenly distributed with a plurality of injection holes 41 corresponding to the T-shaped slots 21. A liquid inlet channel 42 connected to the injection holes 41 is formed at the axis of the rotating column 4. The liquid inlet channel 42 is sealed and rotatably connected to a liquid inlet pipe 5. The liquid inlet pipe 5 is integrally connected to the base 1. An inertial reciprocating structure 6 is provided between the rotating column 4 and the rotating disk 2. When the rotating disk 2 is braked, the inertial reciprocating structure 6 can utilize the inertia of the rotating column 4 to make the rotating column 4 reciprocate relative to the rotating disk 2 within a predetermined angle. When the rotating column 4 is at the starting point of the stroke of reciprocating rotation relative to the rotating disk 2, the injection hole 41 is aligned with the corresponding T-slot 21; When the rotating column 4 is at the end point of the stroke of the reciprocating rotation relative to the rotating disk 2 , the injection hole 41 is staggered from the corresponding T-shaped slot 21 .

[0021] Specifically, when it is necessary to clean the metal chips in the T-slot 21, first, the motor rotor 32 is powered on. After being powered on, the motor rotor 32 is subjected to the Ampere force in the magnetic field generated by the motor stator 31, thereby driving the rotating disk 2 and the rotating column 4 thereon to rotate at a predetermined speed. Then, the rotating disk 2 brakes and quickly stops rotating, while the rotating column 4 stores the kinetic energy of rotation under the action of inertia. At this time, the external water pump injects cutting fluid into the liquid inlet pipe 5 at a constant flow rate. The cutting fluid flows to the injection hole 41 through the liquid inlet channel 42, and finally ejects from the injection hole 41 to the T-slot 21. At the same time, the inertial reciprocating structure 6 uses the kinetic energy stored in the rotating column 4 due to inertia to make the rotating column 4 reciprocate relative to the rotating disk 2 within a predetermined angle. During the reciprocating rotation of the rotating column 4, when part of the cross-section of the injection hole 41 is blocked by the rotating disk 2, the flow cross-sectional area of ​​the injection hole 41 is reduced, thereby increasing the flow rate of the water flow, and the injection hole 41 at this time is aligned with the bottom angle of the T-slot 21 close to the axis of the rotating disk 2, thereby effectively flushing away the metal chips there.

[0022] In addition, in the process of the injection hole 41 changing from being aligned with the corresponding T-slot 21 to being offset, and in the process of changing from being offset to being aligned with the corresponding T-slot 21, the flow cross-sectional area of ​​the injection hole 41 changes dynamically, so that the water flow ejected from the injection hole 41 produces a turbulent effect and forms a pulsed water flow, thereby destroying the adhesion between the molten metal and the wall of the T-slot 21 and promoting the removal of metal chips.

[0023] Preferably, the inertial reciprocating structure 6 comprises a spline ring 61 integrally sleeved on the outside of the rotating column 4, and a plurality of limit blocks 611 are evenly distributed on the outer wall of the spline ring 61 along its circumference; A spline key 62 is integrally connected to the rotating disk 2 , and the spline key 62 is rotatably sleeved on the outer side of the spline ring 61 . A plurality of stop blocks 621 cooperating with the limit blocks 611 are evenly distributed on the inner side wall of the spline key 62 along its circumference.

[0024] The limiting block 611 and the stopping block 621 are used to limit the relative rotation angle between the rotating column 4 and the rotating disk 2 .

[0025] Preferably, both the limit block 611 and the stop block 621 are permanent magnets; A magnetic repulsive force is generated between the limiting blocks 611 and the stop blocks 621 adjacent to each other in the circumferential direction of the rotating disk 2; In order to avoid a hard collision between the limiting block 611 and the stopping block 621 , a buffer pad 622 acting on the limiting block 611 is provided on the stopping block 621 .

[0026] It can be understood that, in a stationary state, the axis line of the injection hole 41 is aligned with the center line of the corresponding T-slot 21, and the limit block 611 is located between the adjacent stop blocks 621 in the circumferential direction of the rotating disk 2. At this time, the magnetic repulsion forces generated by the adjacent stop blocks 621 on the limit block 611 are equal.

[0027] When the rotating disk 2 rotates in the clockwise direction at a predetermined speed and then stops quickly, the rotating column 4 continues to rotate under the action of inertia, thereby rotating relative to the rotating disk 2, thereby driving the limit block 611 to rotate in the clockwise direction. As the limit block 611 gradually approaches the stop block 621 in the clockwise direction, the magnetic repulsion force of the stop block 621 in the clockwise direction on the limit block 611 gradually increases, while the magnetic repulsion force of the stop block 621 in the counterclockwise direction on the limit block 611 gradually weakens. In this process, the kinetic energy of the rotating column 4 is gradually converted into the magnetic potential energy between the limit block 611 and the stop block 621 in the clockwise direction. When the limit block 611 abuts against the stop block 621 in the clockwise direction, the rotating column 4 stops rotating. Then, under the magnetic repulsive force of the stop block 621 in the clockwise direction, the limit block 611 drives the rotating column 4 to rotate in the counterclockwise direction, and the magnetic potential energy between the limit block 611 and the stop block 621 in the clockwise direction is gradually converted into the kinetic energy of the rotating column 4. As the limit block 611 gradually approaches the stop block 621 in the counterclockwise direction, the kinetic energy of the rotating column 4 is gradually converted into the magnetic potential energy between the limit block 611 and the stop block 621 in the counterclockwise direction. In this way, the rotating column 4 will change its rotation direction many times under the combined action of inertia and the magnetic repulsive force of the stop block 621, until the kinetic energy of the rotating column 4 is exhausted by friction, air resistance, etc., and finally returns to a static state.

[0028] After returning to the stationary state, the external water pump still injects cutting fluid into the liquid inlet pipe 5 at a constant flow rate, thereby completely flushing away the metal chips in the T-slot 21 .

[0029] In order to increase the kinetic energy that the rotating column 4 can store, preferably, the bottom end of the rotating column 4 is integrally connected with a flywheel 63 that is coaxial therewith.

[0030] It is understandable that if metal chips are blocked in a certain T-slot 21, increasing the water flow in the T-slot 21 will help to flush away the blocked metal chips. To this end, preferably, a diverter cavity 43 connected to the liquid inlet channel 42 is formed in the rotating column 4, and the diverter cavity 43 is connected to the injection hole 41 through the liquid delivery channel 44; The junction of the injection hole 41 and the liquid delivery channel 44 is connected to a valve cavity 45, and a valve core 71 is sealingly and slidably connected in the valve cavity 45. The distance from the valve core 71 to the injection hole 41 is proportional to the opening of the liquid delivery channel 44. The valve core 71 is connected to a first elastic member 72 , and the hydraulic pressure in the injection hole 41 and the first elastic member 72 cause the valve core 71 to tend to move away from the injection hole 41 ; A balance chamber 46 is formed at the axis of the rotating column 4 , and the balance chamber 46 is connected to the end of the valve cavity 45 facing away from the injection hole 41 . The balance chamber 46 is filled with hydraulic oil, and the oil pressure in the balance chamber 46 makes the valve core 71 tend to approach the injection hole 41 .

[0031] When it is necessary to flush away the metal chips in the T-slot 21, the external water pump injects cutting fluid into the liquid inlet pipe 5 at a constant flow rate. The cutting fluid flows into the diverter cavity 43 through the liquid inlet channel 42 in turn, then flows to the injection hole 41 through the liquid delivery channel 44, and finally ejects from the injection hole 41 to the T-slot 21. If each T-slot 21 is not blocked, the water flow in each T-slot 21 is smooth. At this time, the hydraulic pressure in each injection hole 41 is equal, so that the distance from each valve core 71 to the injection hole 41 is also equal, and the opening of each liquid delivery channel 44 is also equal. In this way, each injection hole 41 can spray cutting fluid with equal water flow.

[0032] If a certain T-slot 21 is blocked, the water level in the T-slot 21 will rise. When the water level reaches the injection hole 41 corresponding to the T-slot 21, the hydraulic pressure in the injection hole 41 will increase. Under the action of the hydraulic pressure, the valve core 71 in the valve chamber 45 connected to the injection hole 41 will move away from the injection hole 41, thereby increasing the opening of the liquid delivery channel 44 corresponding to the valve core 71 and squeezing the hydraulic oil in the balance chamber 46, causing the oil pressure in the balance chamber 46 to increase. Furthermore, under the action of the increased oil pressure, the remaining valve cores 71 will approach the injection hole 41, reducing the opening of the remaining liquid delivery channels 44; at the same time, the elastic force of the first elastic member 72 corresponding to these valve cores 71 will also increase. In this way, under the premise that the flow rate of the external water pump remains unchanged, the water flow of the injection hole 41 corresponding to the blocked T-slot 21 will increase, while the water flow of the injection holes 41 corresponding to the remaining T-slots 21 will decrease, which will help to flush away the blocked metal chips.

[0033] After the blocked metal chips are washed away, the water flow in each T-slot 21 is restored to be smooth, and the hydraulic pressure in each injection hole 41 is balanced again. Due to the difference in the elastic force of the first elastic member 72 caused by the previous blockage, the elastic force of the first elastic member 72 corresponding to the unblocked T-slot 21 is larger, which will push the corresponding valve core 71 away from the injection hole 41; while the elastic force of the first elastic member 72 corresponding to the blocked T-slot 21 is smaller, and the corresponding valve core 71 will be close to the injection hole 41. In this way, the openings of each liquid delivery channel 44 can be readjusted to be equal.

[0034] Preferably, a piston cavity 47 connected to the balance chamber 46 is formed at the axis of the rotating column 4, and a piston head 81 is sealingly and slidingly connected in the piston cavity 47. The piston head 81 is connected to a second elastic member 82, and the second elastic member 82 makes the piston head 81 tend to approach the balance chamber 46.

[0035] Specifically, when the rotating disk 2 is braked, the external water pump injects cutting fluid into the liquid inlet pipe 5 at a constant flow rate. The cutting fluid flows into the diversion chamber 43 through the liquid inlet channel 42 in turn, then flows to the injection hole 41 through the liquid delivery channel 44, and finally ejects from the injection hole 41 to the T-slot 21. At the same time, the inertial reciprocating structure 6 uses the inertia of the rotating column 4 to make the rotating column 4 reciprocate relative to the rotating disk 2 within a predetermined angle. During the reciprocating rotation of the rotating column 4, when the cross-section of the injection hole 41 changes from being aligned with the T-slot 21 to being completely blocked by the rotating disk 2, a water hammer effect will occur, causing the hydraulic pressure in the injection hole 41 to increase rapidly. This pressure change will push the valve core 71 away from the injection hole 41 and squeeze the hydraulic oil in the balance chamber 46, thereby pushing the piston head 81 away from the balance chamber 46, causing the second elastic member 82 to be compressed and store elastic energy. When the cross section of the injection hole 41 is aligned with the T-slot 21 again, the hydraulic pressure in the injection hole 41 decreases rapidly, and the second elastic member 82 releases its stored elastic energy, pushing the piston head 81 close to the injection hole 41. The reciprocating motion of the piston head 81 causes the water flow at the injection hole 41 to change, causing the water flow ejected from the injection hole 41 to have a turbulent effect and form a pulsed water flow, thereby destroying the adhesion between the molten metal and the wall of the T-slot 21, and promoting the removal of metal chips.

[0036] Preferably, the base 1 is integrally connected with a support cylinder 33, the rotating disk 2 is integrally connected with a flange cylinder 34, the flange cylinder 34 is rotatably sleeved on the outer side of the support cylinder 33, the support cylinder 33 is integrally sleeved with a tension sleeve 35, a pressure chamber 351 is formed between the tension sleeve 35 and the support cylinder 33, and an oil pressure channel 352 connected to the pressure chamber 351 is provided in the base 1 and the support cylinder 33. When the rotating disk 2 is braked, the external oil pump injects hydraulic oil into the pressure chamber 351 through the oil pressure channel 352, so that the tension sleeve 35 expands and deforms and holds the flange cylinder 34 tightly, thereby stopping the rotating disk 2 quickly.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A high-precision five-axis machining center rotary table, comprising a base and a rotating disk rotatably connected to the base, the top of the rotating disk is evenly distributed with a plurality of T-slots, the base is provided with a motor stator, the rotating disk is provided with a motor rotor coupled with the motor stator, characterized in that: The rotating disc is rotatably connected to a rotating column at the axis center, and a plurality of injection holes corresponding to the T-shaped grooves are evenly distributed on the side wall of the rotating column. A liquid inlet channel connected to the injection holes is formed at the axis center of the rotating column, and a liquid inlet pipe is sealed and rotatably connected to the liquid inlet channel, and the liquid inlet pipe is integrally connected to the base; An inertial reciprocating structure is provided between the rotating column and the rotating disk. When the rotating disk is braked, the inertial reciprocating structure can utilize the inertia of the rotating column to make the rotating column reciprocate relative to the rotating disk within a predetermined angle; When the rotating column is at the starting point of the stroke of reciprocating rotation relative to the rotating disk, the injection hole is aligned with the corresponding T-slot; When the rotating column is at the end point of the stroke of reciprocating rotation relative to the rotating disk, the injection hole is staggered with the corresponding T-slot.

2. The high-precision five-axis machining center rotary table according to claim 1, characterized in that: The inertial reciprocating structure comprises a spline ring integrally sleeved on the outside of the rotating column, and a plurality of limit blocks are evenly distributed on the outer wall of the spline ring along its circumference; The rotating disk is integrally connected with a spline keypad, which is rotatably sleeved on the outer side of the spline ring. A plurality of stop blocks cooperating with the limit blocks are evenly distributed on the inner side wall of the spline keypad along its circumference.

3. The high-precision five-axis machining center rotary table according to claim 2, characterized in that: The limit block and the stop block are both permanent magnets; A magnetic repulsive force is generated between the limiting blocks and the stop blocks adjacent to each other in the circumferential direction of the rotating disk; The stop block is provided with a buffer pad which acts on the limit block.

4. A high-precision five-axis machining center rotary table according to claim 1 or 2, characterized in that: The bottom end of the rotating column is integrally connected with a flywheel coaxial with the rotating column.

5. The high-precision five-axis machining center rotary table according to claim 1, characterized in that: A flow dividing chamber connected to the liquid inlet channel is formed in the rotating column, and the flow dividing chamber is connected to the injection hole through the liquid delivery channel; The junction of the injection hole and the liquid delivery channel is connected with a valve cavity, and a valve core is sealingly and slidably connected in the valve cavity, and the distance from the valve core to the injection hole is proportional to the opening of the liquid delivery channel; The valve core is connected to a first elastic member, and the hydraulic pressure in the injection hole and the first elastic member cause the valve core to tend to move away from the injection hole; A balance chamber is formed at the axis of the rotating column, the balance chamber is connected to the end of the valve cavity facing away from the injection hole, the balance chamber is filled with hydraulic oil, and the oil pressure in the balance chamber makes the valve core tend to approach the injection hole.

6. The high-precision five-axis machining center rotary table according to claim 5, characterized in that: A piston cavity connected to the balance chamber is formed at the axis of the rotating column. A piston head is sealingly and slidably connected in the piston cavity. The piston head is connected to a second elastic member. The second elastic member makes the piston head tend to approach the balance chamber.

7. The high-precision five-axis machining center rotary table according to claim 1, characterized in that: A support cylinder is integrally connected to the base, a flange cylinder is integrally connected to the rotating disk, the flange cylinder is rotatably sleeved on the outer side of the support cylinder, a tension sleeve is integrally sleeved on the support cylinder, a pressure chamber is formed between the tension sleeve and the support cylinder, and an oil pressure channel connected to the pressure chamber is opened in the base and the support cylinder.

Images