Precision optical grinding machine spindle box with rotating shaft

Abstract

The utility model discloses a precision optical grinding machine spindle box with a rotating shaft, which comprises a sliding seat part Z-axis unit, the sliding seat part Z-axis unit comprises a sliding seat, the top of the sliding seat is connected with a servo motor, and a lead screw shaft system assembly matched with the servo motor is arranged on the sliding seat along the Z direction; the ram part unit comprises a ram, and the ram is connected with the lead screw shaft system assembly; the B-axis rotating shaft unit comprises a rotating shaft installed in the ram, the rotating shaft is sequentially sleeved with a torque motor rotor and a torque motor stator in the circumferential direction, and the torque motor rotor is used for driving the rotating shaft to rotate; and the spindle head unit comprises a connecting base, the connecting base is connected with the end, away from the ram, of the rotating shaft, and a vertical spindle and a horizontal spindle are installed on the connecting base. The utility model solves the technical problems that in the processing process of the existing optical element, the working procedures are complicated, the vertical and horizontal spindles cannot be integrated, and a plurality of processing devices are needed, so that manual cutter mounting is needed for many times, and the processing efficiency is low.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining equipment, and relates to a precision optical grinding machine spindle box with a rotating shaft. BACKGROUND

[0002] The optical element with a complex aspheric surface has high hardness, great brittleness and is prone to surface damage in the machining process, and is a typical difficult-to-machine material, so the machine tool structure and machining precision are extremely high. The precision optical grinding machine is the best means to realize a high-precision and high-quality smooth surface. The manufacturing process of the traditional aspheric optical element needs to go through multiple processes such as rough grinding, lapping, shaping and polishing, so the machining equipment is much, the cycle is long, and the machining efficiency is low. UTILITY MODEL CONTENTS

[0003] The utility model discloses a precision optical grinding machine spindle box with a rotating shaft, which solves the technical problem that the existing optical element is complicated in the machining process, needs multiple machining equipment for cooperation to cause low machining efficiency.

[0004] The utility model adopts the technical scheme, precision optical grinding machine spindle box with rotating shaft, include:

[0005] The slide block part Z axle unit includes a slide block, the top of the slide block is connected with a servo motor, and a screw shaft system assembly matched with the servo motor is installed on the slide block in the Z direction.

[0006] The slide block part Z axle unit includes a slide block, the top of the slide block is connected with a servo motor, and a screw shaft system assembly matched with the servo motor is installed on the slide block in the Z direction.

[0007] The B axis rotating shaft unit includes a rotating shaft installed in the slide block, and a torque motor rotor and a torque motor stator are sequentially sleeved on the rotating shaft in the circumferential direction, and the torque motor rotor is used to drive the rotating shaft to rotate.

[0008] The main shaft head unit includes a connecting seat, the connecting seat is connected with one end of the rotating shaft away from the slide block, and a vertical main shaft and a horizontal main shaft are installed on the connecting seat.

[0009] The utility model has the characteristics that:

[0010] The screw shaft system assembly includes a screw shaft connected with the servo motor through a shaft coupling, a screw nut is threadedly connected on the screw shaft, and the screw nut is connected with the slide block.

[0011] A bearing is installed on the slide block, a bearing gland is installed on the top of the bearing, a spacer sleeve is abutted on the top and the bottom of the bearing, a radial locking nut is installed on the spacer sleeve on the top of the bearing, and the screw shaft sequentially penetrates the radial locking nut, the spacer sleeve on the top of the bearing, the bearing and the spacer sleeve on the bottom of the bearing.

[0012] The end of the screw rod away from the servo motor is provided with a self-made nut, and a limiting block is arranged between the spacer sleeve and the screw rod nut in the slide block.

[0013] The rotating shaft comprises a second rotating shaft and a first rotating shaft connected by a fastener, the second rotating shaft and the first rotating shaft are hollow structures, and the second rotating shaft and the first rotating shaft are coaxially arranged.

[0014] The slide block is provided with a back plate on the side wall close to the end of the first rotating shaft;

[0015] The slide block is provided with a waterproof and dustproof cover plate on the side wall close to the end of the second rotating shaft, and a rotary seal is arranged on the waterproof and dustproof cover plate.

[0016] A mechanical switch connecting seat is arranged on the side wall of the slide block, a mechanical switch is arranged on the mechanical switch connecting seat, and the mechanical switch is used for alarming when the slide block moves beyond the stroke along the screw rod; a screw rod nut lubricating assembly and a Z-axis grating ruler are connected to the side of the slide block corresponding to the mechanical switch, the screw rod nut lubricating assembly comprises a quantitative connecting body and a grease metering piece for lubricating the screw rod nut with grease, and a reading head is slidably connected to the Z-axis grating ruler and arranged on the slide block; the first rotating shaft is connected with a rotary encoder; a rotary table bearing is arranged between the second rotating shaft and the slide block; and a pneumatic clamp is connected to the second rotating shaft in the circumferential direction.

[0017] A Z-axis linear guide rail is arranged on the side wall of the slide block away from the connecting seat, a guide rail pressing block is arranged on the Z-axis linear guide rail, a stator grating connecting plate is connected to the stator of the torque motor, and the stator grating connecting plate is connected with an encoder reading head and a dustproof plate.

[0018] A workpiece measuring head and a measuring head air blowing device are arranged on the side wall of the connecting seat;

[0019] A pneumatic connector and a cooling connector are further arranged on the side wall of the slide block, the pneumatic connector is connected with an external air source and the pneumatic clamp, and the connecting seat is provided with workpiece cooling nozzles at the top and the bottom, and the cooling connector is connected with an external cooling source and the workpiece cooling nozzles;

[0020] A cover plate is connected to the connecting seat, and a sealing rubber strip is arranged at the connecting position of the connecting seat and the cover plate.

[0021] The two side walls of the slide block are respectively provided with a Z-axis guide rail sliding block and an X-axis guide rail sliding block.

[0022] Compared with the prior art, the utility model has the advantages of:

[0023] In the utility model, the slide block, the slide block and the connecting seat are designed to be symmetrical and light in weight, the overturning moment generated when the whole spindle box is connected to the beam is reduced, and the machine tool precision is improved;

[0024] The linear shaft adopts high-performance servo motor direct connection high-precision ball screw transmission, the rotating shaft adopts direct torque motor direct connection rotating shaft to drive spindle head unit rotation, realizes high dynamic, high-precision multi-axis linkage multi-process integrated machining, changes the present situation of multi-machine tool multi-process supporting machining, improves the machining efficiency;

[0025] In the utility model, multiple protection components are arranged to prevent the invasion of chips, cutting fluid and water stains into the spindle box to affect the precision, and the mechanical switch and the limiting block and other elements are used to improve the safety of the machine tool. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the structure schematic view of the precision optical grinding machine spindle box with rotating shaft of the utility model;

[0027] Figure 2 is the structure schematic view of the slide base part Z axis unit in the precision optical grinding machine spindle box with rotating shaft of the utility model;

[0028] Figure 3 is Figure 2 the local enlarged structure schematic view of I in;

[0029] Figure 4 is the left view of the precision optical grinding machine spindle box with rotating shaft of the utility model;

[0030] Figure 5 is the rear view of the slide block part unit in the precision optical grinding machine spindle box with rotating shaft of the utility model;

[0031] Figure 6 is the connection structure schematic view of the slide block part unit and the spindle head unit in the precision optical grinding machine spindle box with rotating shaft of the utility model.

[0032] In the diagram, 1. Z-axis unit of the slide block, 2. ram unit, 3. B-axis rotary axis unit, 4. spindle head unit, 5. lead screw shaft assembly, 6. servo motor, 7. slide block, 8. coupling, 9. radial lock nut, 10. bearing cover, 11. bearing, 12. spacer, 13. lead screw, 14. custom nut, 15. X-axis guide rail slider, 16. limit block, 17. Z-axis guide rail slider, 18. lead screw nut lubrication assembly, 19. Z-axis grating ruler, 20. Z-axis linear guide, 21. ram, 22. mechanical switch, 23. mechanical switch connector, 24. workpiece cooling nozzle. 25. Vertical spindle, 26. Horizontal spindle, 27. Guide rail pressure block, 28. Stator grating connecting plate, 29. Dustproof plate, 30. Pneumatic connector, 31. Cooling connector, 32. Encoder reading head, 33. Sealing strip, 34. Connecting seat, 35. Rotary seal, 36. Waterproof and dustproof cover plate, 37. Back plate, 38. Lead screw nut, 39. First rotating shaft, 40. Rotary encoder, 41. Torque motor rotor, 42. Torque motor stator, 43. Turntable bearing, 44. Second rotating shaft, 45. Pneumatic clamp, 46. Workpiece probe, 47. Probe blowing device, 48. Cover plate. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Example 1

[0035] like Figures 1-6 As shown, the precision optical grinding machine spindle box with a rotating shaft disclosed in this embodiment includes: a slide Z-axis unit 1, the slide Z-axis unit 1 includes a slide 7, the top of the slide 7 is connected to a servo motor 6, and a lead screw shaft assembly 5 that cooperates with the servo motor 6 is installed on the slide 7 along the Z direction;

[0036] The ram section unit 2 includes a ram 21, which is connected to the lead screw shaft assembly 5.

[0037] B-axis rotating shaft unit 3 includes a rotating shaft installed inside the slide ram 21. A torque motor rotor 41 and a torque motor stator 42 are sequentially sleeved around the rotating shaft. The torque motor rotor 41 is used to drive the rotating shaft to rotate.

[0038] The spindle head unit 4 includes a connecting seat 34, which is connected to the end of the rotating shaft away from the slide ram 21. A vertical spindle 25 and a horizontal spindle 26 are mounted on the connecting seat 34.

[0039] In the embodiment, the top of the sliding seat 7 is provided with a servo motor connecting hole, the bottom of the servo motor connecting hole is provided with a bearing mounting hole and a bearing gland connecting hole, the front is provided with a guide rail slider connecting hole in the vertical direction along the Z axis, and the back is provided with a guide rail slider connecting hole in the horizontal X direction, which is convenient for connection with the beam, and all the connecting holes are connected by screws; the vertical main shaft 25 can be equipped with two cutters at the same time.

[0040] Embodiment 2

[0041] On the basis of embodiment 1, the screw shaft system assembly 5 includes a screw shaft 13 connected with the servo motor 6 through the shaft coupling 8, the screw shaft 13 is threadedly connected with a screw nut 38, and the screw nut 38 is connected with the ram 21.

[0042] In the embodiment, the servo motor 6 drives the screw shaft 13 to rotate and then converts the rotation into the linear motion of the screw nut 38 along the screw shaft 13. In the specific use process, the ram 21 is provided with a screw nut seat for convenient assembly with the screw nut 38, and the screw nut seat is assembled with the screw nut.

[0043] Further, the sliding seat 7 is provided with a bearing 11, the top of the bearing 11 is provided with a bearing gland 10, the top and bottom of the bearing 11 are abutted with a spacer sleeve 12, the spacer sleeve 12 at the top of the bearing 11 is provided with a radial locking nut 9, and the screw shaft 13 passes through the radial locking nut 9, the spacer sleeve 12 at the top of the bearing 11, the bearing 11 and the spacer sleeve 12 at the bottom of the bearing 11 in sequence.

[0044] In the embodiment, the bearing 11 adopts three groups of back-to-back angular contact ball bearings, the bearing gland 10 and the radial locking nut 9 adjust the bearing play of the bearing 11, the two ends of the bearing 11 are respectively provided with the spacer sleeves 12, the radial locking nut 9 presses the inner ring of the spacer sleeve 12 and the bearing 11, and the bearing gland 10 fixes the outer ring of the bearing 11 to pre-tighten the bearing.

[0045] Further, the end of the screw shaft 13 away from the servo motor 6 is provided with a self-made nut 14, and the sliding seat 7 is provided with a limiting block 16 between the spacer sleeve 12 and the screw nut 38.

[0046] In the embodiment, the self-made nut 14 and the limiting block 16 play a limiting role.

[0047] Embodiment 3

[0048] On the basis of embodiment 1, the rotating shaft includes a second rotating shaft 44 and a first rotating shaft 39 connected by a fastener, the second rotating shaft 44 and the first rotating shaft 39 are hollow structures, and the second rotating shaft 44 and the first rotating shaft 39 are coaxially arranged; one end of the second rotating shaft 44 away from the first rotating shaft 39 is connected with the connecting seat 34.

[0049] In the embodiment, the second rotating shaft 44 and the first rotating shaft 39 are coaxially connected by a stopper and then connected by a screw; the rotating shaft b1 is tightly matched with the connecting seat 34 by a stopper and then connected by a screw; the main purpose of the cavity structure is to pass the pipeline of the spindle head unit 4.

[0050] Further, the back plate 37 is installed on the side wall of the ram 21 close to the end of the first rotating shaft 39; the waterproof and dustproof cover plate 36 is installed on the side wall of the ram 21 close to the end of the second rotating shaft 44, and the rotary seal 35 is installed on the waterproof and dustproof cover plate 36;

[0051] In the embodiment, the dustproof plate 29, the back plate 37 and the waterproof and dustproof cover plate 36 are all used to prevent the invasion of chips and cutting fluid in the machining area; the sealing rubber strip 33 prevents the water stains in the machining area from splashing into the encoder to pollute the measurement accuracy.

[0052] Embodiment 4

[0053] On the basis of the embodiment 3, the mechanical switch connecting seat 23 is installed on the side wall of the ram 21, the mechanical switch 22 is installed on the mechanical switch connecting seat 23, and the mechanical switch 22 is used to alarm when the ram 21 moves beyond the stroke along the screw shaft 13; the screw nut lubricating assembly 18 and the Z-axis grating ruler 19 are connected to the side of the ram 21 corresponding to the mechanical switch 22, the screw nut lubricating assembly 18 includes a quantitative connecting body and a grease metering piece for lubricating the screw nut 38 with grease, the reading head is slidingly connected to the Z-axis grating ruler 19, and the reading head is installed on the sliding seat 7; the first rotating shaft 39 is connected with the rotary encoder 40; the rotary table bearing 43 is installed between the second rotating shaft 44 and the ram 21; the pneumatic clamp 45 is connected to the second rotating shaft 44 in the circumferential direction.

[0054] The Z-axis linear guide rail 20 is installed on the side wall of the ram 21 opposite to the connecting seat 34, the guide rail pressing block 27 is installed on the Z-axis linear guide rail 20, the stator grating connecting plate 28 is connected to the force moment motor stator 42, and the encoder reading head 32 and the dustproof plate 29 are connected to the stator grating connecting plate 28.

[0055] In this embodiment, the mechanical switch 22 functions to feedback to the machine tool operating panel when the moving part exceeds the stroke range to give an alarm; the Z-axis grating ruler 19 is provided with a reading head capable of sliding up and down on the Z-axis grating ruler 19, the reading head is mounted on the slide 7, and the slide block 21 drives the Z-axis grating ruler 19 to move up and down relative to the slide 7; the Z-axis linear guide rail 20 is fixedly attached to the slide block 21 through screws and guide rail pressing blocks 27, and the guide rail pressing blocks 27 are used to adjust the precision of the Z-axis linear guide rail 20; the outer ring of the stator grating connecting plate 28 is connected to the slide block 21, and the inner ring of the stator grating connecting plate 28 is connected to the torque motor stator 42; the second rotating shaft 44 is connected to the inner side of the rotary table bearing 43, and the outer side of the rotary table bearing 43 is connected to the slide block 21; in actual application, the rotary table bearing 43 can be provided with a lubricating groove, and a bearing lubricating hole is formed on the slide block 21 to form a bearing lubricating pipeline; the torque motor stator 42 is connected to the stator grating connecting plate 28 and is fixed on the slide block 21, and the torque motor rotor 41 drives the second rotating shaft 44 and the first rotating shaft 39 to rotate.

[0056] Embodiment 5

[0057] On the basis of embodiment 4, the side wall of the connecting seat 34 is provided with a workpiece measuring head 46 and a measuring head air blowing device 47;

[0058] The side wall of the slide block 21 is also provided with a pneumatic connector 30 and a cooling connector 31, the pneumatic connector 30 is connected to an external air source and the pneumatic clamp 45; the top and bottom of the connecting seat 34 are both connected to a workpiece cooling nozzle 24, and the cooling connector 31 is connected to an external cooling source and the workpiece cooling nozzle 24;

[0059] The connecting seat 34 is connected to a cover plate 48, and a sealing rubber strip 33 is arranged at the connecting position of the connecting seat 34 and the cover plate 48.

[0060] In this embodiment, the contact scanning type workpiece measuring head 46 can realize online measurement in the machine to realize workpiece detection in the machine and feedback to the machine tool to realize secondary processing and improve the surface quality of the part; the measuring head air blowing device 47 is used to prevent iron filings from falling onto the workpiece measuring head 46 to affect the measurement accuracy; the workpiece cooling nozzle 24 is used to cool the workpiece during machining of the vertical spindle 25 and the horizontal spindle 26, and can cool the workpiece surface during positioning at any angle during vertical-horizontal conversion, remove iron filings on the tool tip surface, and improve the surface cutting quality of the part. The pneumatic clamp 45 is used for positioning and clamping of the rotating shaft and instantaneous stop during linkage machining, the pneumatic clamp 45 is provided with an air inlet hole and an air outlet hole, and forms a pressurized air path with the pneumatic connector 30 on the slide block 21, and the air outlet hole is directly connected to the atmosphere. Specifically, the pneumatic connector 30 is connected to an external air source and provides power to the pneumatic clamp 45 during clamping or loosening through the air path in the slide block 21, and the cooling connector 31 is connected to an external cooling source and cools the torque motor through the water cooling channel in the slide block 21.

[0061] Embodiment 6

[0062] On the basis of the embodiments 1-4, the slide 7 is respectively installed with the Z-axis guide rail sliding block 17 and the X-axis guide rail sliding block 15 on the two side walls corresponding to the two side walls.

[0063] In the embodiment, the Z-axis guide rail sliding block 17 is installed on the front of the slide 7, the X-axis guide rail sliding block 15 is installed on the back of the slide 7, and the sliding block mounting surface connected with the cross beam is provided with a height difference, so as to reduce the overturning moment generated when the whole spindle box is connected to the cross beam, and improve the machine tool precision.

[0064] In summary, the precision optical grinding machine spindle box with a rotating shaft provided by the utility model adopts symmetrical and lightweight design for the castings such as the slide 7, the ram 21 and the connecting seat 34; the linear shaft adopts high-performance servo motor 6 directly connected with high-precision ball screw transmission, the rotating shaft adopts direct torque motor directly connected with the rotating shaft to drive the spindle head unit 4 to rotate, so as to realize high-dynamic and high-precision multi-axis linkage multi-process integrated machining.

[0065] Finally, it should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.

[0066] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other.

[0067] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A spindle head for a precision optical grinding machine with a rotating axis, characterized in that, The utility model relates to a precision optical grinding machine spindle box with rotating shaft, which comprises a slide block part Z-axis unit (1), a slide block part Z-axis unit (1) comprises a slide block (7), the top of slide block (7) is connected with a servo motor (6), and the slide block (7) is provided with a screw shaft system assembly (5) matched with the servo motor (6) in the Z direction, A slide block part unit (2) is connected with the screw shaft system assembly (5), and the slide block part unit (2) comprises a slide block (21); A B-axis rotating shaft unit (3) is connected with the slide block (21), and the B-axis rotating shaft unit (3) comprises a rotating shaft installed in the slide block (21), a torque motor rotor (41) and a torque motor stator (42) are sequentially sleeved on the rotating shaft in the circumferential direction, and the torque motor rotor (41) is used to drive the rotating shaft to rotate; A main shaft head unit (4) is connected with the end of the rotating shaft away from the slide block (21), and the main shaft head unit (4) comprises a connecting seat (34), the connecting seat (34) is connected with the end of the rotating shaft away from the slide block (21), and a vertical main shaft (25) and a horizontal main shaft (26) are installed on the connecting seat (34). The screw shaft system assembly (5) comprises a screw shaft (13) connected with the servo motor (6) through a shaft coupling (8), the screw shaft (13) is threadedly connected with a screw nut (38), and the screw nut (38) is connected with the slide block (21).

2. The precision optical grinder spindle head with rotating axis according to claim 1, characterized in that, The slide block (7) is provided with a bearing (11), the top of the bearing (11) is provided with a bearing pressing cover (10), the top and the bottom of the bearing (11) are abutted with a spacer sleeve (12), the spacer sleeve (12) on the top of the bearing (11) is provided with a radial locking nut (9), and the screw shaft (13) sequentially penetrates the radial locking nut (9), the spacer sleeve (12) on the top of the bearing (11), the bearing (11) and the spacer sleeve (12) on the bottom of the bearing (11).

3. The precision optical grinder spindle head with rotating axis according to claim 2, characterized in that, The end of the screw shaft (13) away from the servo motor (6) is provided with a self-made nut (14), and the slide block (7) is provided with a limiting block (16) between the spacer sleeve (12) and the screw nut (38).

4. The precision optical grinder spindle head with rotating axis according to claim 3, characterized in that, The rotating shaft comprises a second rotating shaft (44) and a first rotating shaft (39) connected through a fastener, the second rotating shaft (44) and the first rotating shaft (39) are hollow structures, and the second rotating shaft (44) and the first rotating shaft (39) are coaxially arranged; the end, away from the first rotating shaft (39), of the second rotating shaft (44) is connected with the connecting seat (34).

5. The spindle head for a precision optical grinder with rotating axis according to claim 1, characterized in that, 6. The precision optical grinding machine spindle box with rotating shaft according to claim 5, wherein The slide block (21) is provided with a back plate (37) on the side wall close to the end of the first rotating shaft (39); The slide block (21) is provided with a waterproof and dustproof cover plate (36) on the side wall close to the end of the second rotating shaft (44), and the waterproof and dustproof cover plate (36) is provided with a rotary seal (35). ​ 7. The spindle head for a precision optical grinder with rotating axis according to claim 5, characterized in that, The ram (21) is provided with a mechanical switch connecting seat (23) on the side wall, and a mechanical switch (22) is installed on the mechanical switch connecting seat (23), which is used for alarming when the ram (21) moves beyond the stroke along the screw shaft (13); the side of the ram (21) corresponding to the mechanical switch (22) is connected with a screw nut lubricating assembly (18) and a Z-axis grating ruler (19), the screw nut lubricating assembly (18) comprises a quantitative connecting body and a grease metering piece for lubricating the screw nut (38) with grease, and the Z-axis grating ruler (19) is slidably connected with a reading head, and the reading head is installed on the sliding seat (7); the first rotating shaft (39) is connected with a rotary encoder (40); the second rotating shaft (44) and the ram (21) are connected with a rotary table bearing (43); the second rotating shaft (44) is connected with a pneumatic clamp (45) in the circumferential direction. The side wall of the ram (21) opposite to the connecting seat (34) is provided with a Z-axis linear guide rail (20), and the Z-axis linear guide rail (20) is provided with a guide rail pressing block (27); the torque motor stator (42) is connected with a stator grating connecting plate (28), and the stator grating connecting plate (28) is connected with an encoder reading head (32) and a dustproof plate (29).

8. The precision optical grinder spindle head with rotating axis according to claim 7, characterized in that, The connecting seat (34) is provided with a workpiece measuring head (46) and a measuring head air blowing device (47) on the side wall; The side wall of the ram (21) is also provided with a pneumatic connector (30) and a cooling connector (31), and the pneumatic connector (30) is connected with an external air source and the pneumatic clamp (45); the connecting seat (34) is provided with a workpiece cooling nozzle (24) at the top and the bottom, and the cooling connector (31) is connected with an external cooling source and the workpiece cooling nozzle (24); The connecting seat (34) is connected with a cover plate (48), and a sealing rubber strip (33) is arranged at the connection position of the connecting seat (34) and the cover plate (48).

9. The spindle head for a precision optical grinding machine with rotating axis according to any of claims 1 - 8, characterized in that, The two side walls of the sliding seat (7) are respectively provided with a Z-axis guide rail sliding block (17) and an X-axis guide rail sliding block (15).

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